Grain size analyses of sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: A.A. Boggess
Originator: B.J. Buczkowski
Originator: J.D. Chaytor
Publication_Date: 20210819
Title:
Grain size analyses of sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA
Edition: 1.0
Geospatial_Data_Presentation_Form: spreadsheet
Series_Information:
Series_Name: data release
Issue_Identification: DOI: 10.5066/P9ZYK3PX
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher:
U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
Online_Linkage: https://doi.org/10.5066/P9ZYK3PX
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: A.A. Boggess
Originator: B.J. Buczkowski
Originator: J.D. Chaytor
Publication_Date: 2021
Title:
Sedimentological and geotechnical analyses of marine sediment cores from the New England Mud Patch
Edition: 1.0
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Boggess, A.A., Buczkowski, B.J., and Chaytor, J.D., 2021, Sedimentological and geotechnical analyses of marine sediment cores from the New England Mud Patch: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZYK3PX.
Online_Linkage: https://doi.org/10.5066/P9ZYK3PX
Online_Linkage:
Description:
Abstract:
Variability in sediment properties with depth and the thickness of individual sedimentary layers are critical determinants of seabed acoustic response. The New England Mud Patch (NEMP), located south of Cape Cod, is an unusual feature on the U.S. Continental Shelf in that it is composed of fine-grained sediment layers containing a relatively-homogeneous mix of sand, silt, and clay-sized particles bounded by more typical sandy shelf sediments. The unique characteristics and nature of this deposit is due to a derivation of sediments that have been transported to, and deposited in, a basal bowl-shaped depression since the last glacial maximum. Ninety-two piston, vibra-, and gravity cores with a maximum length of 8.2 meters were collected from across the New England Mud Patch during a 2-leg, 10-day cruise aboard the R/V Endeavor in the spring of 2016. Geologic characterization and analysis of a subset of the cores including grain size, CaCO3, mineral composition, and bulk index properties (undrained shear strength, water content, density, and porosity) of discrete samples was carried out at the USGS Woods Hole Coastal and Marine Science Center's (WHCMSC) Sediment Analysis Laboratory. This data release contains the results of these analyses, along with visual core descriptions and summary sheets for each core analyzed for this study.
Purpose:
The data gained through the analyses of cores collected from the New England Mud Patch help provide a comprehensive understanding of the nature and properties of the sediments found in this geographic location. Grain size analyses were used to define the grain size distribution and sedimentary character of samples collected from the cores.
Supplemental_Information:
Cores were collected on the 2016 R/V Endeavor cruise EN577 from April 19, 2016 to May 2, 2016. Information about this expedition, also known as USGS Field Activity 2016-001-FA, is available at https://cmgds.marine.usgs.gov/fan_info.php?fan=2016-001-FA
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20160419
Ending_Date: 20160502
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.7979
East_Bounding_Coordinate: -70.4370
North_Bounding_Coordinate: 40.5952
South_Bounding_Coordinate: 40.3058
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: sediment samples
Theme_Keyword: cores
Theme_Keyword: piston cores
Theme_Keyword: trigger cores
Theme_Keyword: acoustic cores
Theme_Keyword: vibracores
Theme_Keyword: Cruise ID EN577
Theme_Keyword: WHCMSC Field Activity 2016-001-FA
Theme_Keyword: R/V Endeavor
Theme_Keyword: grain-size
Theme_Keyword: clay
Theme_Keyword: silt
Theme_Keyword: sand
Theme_Keyword: gravel
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geology
Theme_Keyword: sedimentology
Theme_Keyword: piston coring
Theme_Keyword: gravity coring
Theme_Keyword: vibracoring
Theme_Keyword: core analysis
Theme_Keyword: unconsolidated deposits
Theme_Keyword: clay deposits
Theme_Keyword: sand deposits
Theme_Keyword: grain-size analysis
Theme_Keyword: sieve-size analysis
Theme_Keyword: Holocene
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:60551970d34e1894882d0a38
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: New England Mud Patch
Place_Keyword: NEMP
Place_Keyword: Atlantic
Place_Keyword: U.S. Continental Shelf
Place_Keyword: Massachusetts
Place_Keyword: Martha's Vineyard
Place_Keyword: Seabed Experiment Area
Access_Constraints: None.
Use_Constraints:
Not to be used for navigation. The public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jason Chaytor
Contact_Organization: U.S. Geological Survey, Northeast Region
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: US
Contact_Voice_Telephone: 508-548-8700 x2351
Contact_Electronic_Mail_Address: jchaytor@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Browse image of the core collection locations and spatial extent of the study area
Browse_Graphic_File_Type: PNG
Native_Data_Set_Environment:
Microsoft Windows 10 Enterprise Version 10.0.18363 (Build 18363)
Cross_Reference:
Citation_Information:
Originator: Jason D. Chaytor
Originator: Megan S. Ballard
Originator: Brian J. Buczkowski
Originator: John A. Goff
Originator: Kevin M. Lee
Originator: Allen H. Reed
Originator: Allyson A. Boggess
Publication_Date: 2021
Title:
Measurements of Geologic Characteristics and Geophysical Properties of Sediments from the New England Mud Patch
Edition: 1.0
Publication_Information:
Publication_Place: Piscataway, NJ
Publisher: IEEE Oceanic Engineering Society
Other_Citation_Details:
This journal article is the publication supported by this data release.
Online_Linkage: https://doi.org/10.1109/JOE.2021.3101013
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Data quality grades have been assigned to each sample analysis, indicating the accuracy of the grain size distribution of the sample's coarse fraction. Standards are regularly run for quality control on the Beckman Coulter Multisizer3, ensuring accuracy of grain-size measurements of the fine fractions.
Logical_Consistency_Report:
Samples' quantified grain size classification, calculated with workbook macros (see Process Step 3), were compared to the qualitative grain size classification described by observers on the core's visual description. This was done to ensure that the actual grain-size data was consistent with expected results determined by inspection of physical samples.
Completeness_Report:
Of the 98 cores collected during the R/V Endeavor EN577 cruise, 66 cores were analyzed for this grain-size dataset. Cores chosen for analysis were those that were thought to represent the full range of sediments expected to be encountered. Any cores omitted from analysis were not included because the coring locations were in close proximity to previously analyzed cores.
Lineage:
Process_Step:
Process_Description:
Each core was cut into sections on the ship during collection. The cores were then split into halves in the core lab. Subsamples (1- cm thick) were taken from the split cores for grain size analysis.
Process_Date: 2016
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jason Chaytor
Contact_Organization: U.S. Geological Survey, Northeast Region
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: US
Contact_Voice_Telephone: 508-548-8700 x2351
Contact_Electronic_Mail_Address: jchaytor@usgs.gov
Process_Step:
Process_Description:
Samples submitted to the sediment analysis laboratory for grain size analysis using the Beckman Coulter Multisizer3 and sieving of the ≥ 4 phi fraction are assigned internal analysis identifiers to record the measurement data. About 50 grams of wet sediment are placed in a pre-weighed beaker, weighed, oven dried at 100°C, and reweighed to correct for salt. The dried sample is wet sieved through a 0.062 mm (No. 230) sieve. The coarse fraction remaining in the sieve is oven dried at 100°C (until completely dried) and weighed. The fine fraction in water is collected in a plastic Nalgene bottle and sealed with a screw lid (stored for no longer than one week). The coarse fraction is dry sieved to determine the individual weights of the 4 to -5 phi fractions, and the weights are recorded in the data entry spreadsheet. At the request of the submitter, shell and shell fragments can be manually removed from the -2 phi and coarser fractions, weighed and their weights are recorded in the data entry spreadsheet. The fine fraction is run and combined using the 200 μm and 30 μm Coulter analyses using the Multisizer3 software (version 3.53) to get the fine fraction grain size distribution. The fine fraction distribution data are added to the data entry spreadsheet. The spreadsheet is used to calculate a continuous phi class distribution from the original fractions.
Process_Date: 2020
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Allyson A Boggess
Contact_Organization: U.S. Geological Survey, NORTHEAST REGION
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: US
Contact_Voice_Telephone: 508-548-8700 x2341
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: aboggess@usgs.gov
Process_Step:
Process_Description:
Continuous phi class distribution from the original fractions are transposed to the "results" tab in the macro-enabled Microsoft Excel data entry workbook with a unique identifier assigned to the sample submission. Macros in the workbook are run to calculate grain size classification and statistical analyses. Sample, navigation, and field identifiers, along with continuous phi class distribution data, grain size classification, and statistical analysis results are copied and pasted into a final Microsoft Excel spreadsheet for each sample submission batch . The processed data are quality control checked and assigned a quality grade based on the examination of the analytical data. Processed data are released to the submitter and incorporated into the laboratory's database. All raw analytical data generated by the samples are archived in the sediment analysis laboratory.
Process_Date: 2020
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Brian Buczkowski
Contact_Organization: U.S. Geological Survey, Northeast Region
Contact_Position: Physical Scientist
Contact_Address:
Address_Type: mailing address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: US
Contact_Voice_Telephone: 508-548-8700 x2361
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bbuczkowski@usgs.gov
Process_Step:
Process_Description:
Finalized grain-size data was taken from individual batch tables and compiled into three CSV (comma-separated value)spreadsheets of data pertaining to each core type (piston, trigger, and acoustic cores).
Process_Date: 2020
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Allyson A Boggess
Contact_Organization: U.S. Geological Survey, NORTHEAST REGION
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: US
Contact_Voice_Telephone: 508-548-8700 x2341
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: aboggess@usgs.gov
Process_Step:
Process_Description: Tweaked a thesaurus name (20211117).
Process_Date: 20211117
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0197464427
Longitude_Resolution: 0.0258271413
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: WGS_1984
Ellipsoid_Name: WGS_84
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: Local surface
Depth_Resolution: 0.1
Depth_Distance_Units: meters
Depth_Encoding_Method: Attribute values
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: EN577_GrainSize_PistonCores.csv
Entity_Type_Definition:
Comma Separated Value (CSV) file containing grain-size data for NEMP piston cores. Point dataset. 770 data records.
Entity_Type_Definition_Source: Producer Defined
Attribute:
Attribute_Label: SAMPLE_ID
Attribute_Definition:
Sample ID. Naming convention: FFFFF-CC-P-GS-# (FFFFF= Field ID abbreviation) (CC=Core ID) (P=Piston Core) (GS= Grain Size Sample) (# = Sample Number)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: PROJECT
Attribute_Definition: Project group ID
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ONR Mud Patch
Enumerated_Domain_Value_Definition: ID for USGS project
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: CRUISE ID
Attribute_Definition: Cruise identification code assigned by research vessel
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: EN577
Enumerated_Domain_Value_Definition:
R/V Endeavor Cruise EN577, also known by WHCMSC field activity number 2016-001-FA
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: CONTACT
Attribute_Definition: Contact for samples
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: JCHAYTOR
Enumerated_Domain_Value_Definition: Jason D. Chaytor
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: AREA
Attribute_Definition: General area where samples were taken
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Mud Patch
Enumerated_Domain_Value_Definition: Southern New England Mud Patch
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: CORE_ID
Attribute_Definition:
Core identification number assigned in field. Naming convention EN577-XXPC (EN577=Cruise ID) (XX=Core number) (PC=Piston Core)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: LATITUDE
Attribute_Definition: Latitude of core that grain-size data came from
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 39.893954
Range_Domain_Maximum: 40.50153
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: LONGITUDE
Attribute_Definition: Longitude of core that grain-size data came from
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -70.948424
Range_Domain_Maximum: -70.482964
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: WATER_DEPTH
Attribute_Definition: Water depth at location where core was collected
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 69.3
Range_Domain_Maximum: 645.0
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.1
Attribute:
Attribute_Label: SAMPLE_DEPTH_TOP
Attribute_Definition: Top of interval that was sampled for grain-size analysis
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3
Range_Domain_Maximum: 780
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: SAMPLE_DEPTH_BOTTOM
Attribute_Definition: Bottom of interval that was sampled for grain-size analysis
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4
Range_Domain_Maximum: 781
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: DEVICE
Attribute_Definition: Device used to collect core
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: PISTON CORER
Enumerated_Domain_Value_Definition: Piston Corer
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: DATE_COLLECTED
Attribute_Definition:
Date that core was collected. Format: MM/DD/YYYY (MM= Month) (DD=Day) (YYYY=Year)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: DATE_ANALYZED
Attribute_Definition:
Date that grain-size analysis was completed. Format: MM/DD/YYYY (MM= Month) (DD=Day) (YYYY=Year)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: WEIGHT
Attribute_Definition: Weight of dry sample
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.151
Range_Domain_Maximum: 31.167
Attribute_Units_of_Measure: grams
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: GRAVEL_PCT
Attribute_Definition:
Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; -1 Phi and coarser).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 28.87
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SAND_PCT
Attribute_Definition:
Sand content in percent dry weight of the sample (particles with nominal diameters less than 2 mm, but greater than or equal to 0.0625 mm; 0 Phi through 4 Phi).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.53
Range_Domain_Maximum: 99.78
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SILT_PCT
Attribute_Definition:
Silt content in percent dry weight of the sample (particles with nominal diameters less than 0.0625 mm, but greater than or equal to 0.004 mm; 5 Phi through 8 Phi, inclusive).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 86.13
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: CLAY_PCT
Attribute_Definition:
Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9 Phi and finer).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 85.38
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: CLASSIFICATION
Attribute_Definition:
Sediment description based on a rigorous definition, usually Shepard (1954) as modified by Schlee (1973) and Poppe and others ( 2005).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: clayey silt
Enumerated_Domain_Value_Definition: Sediment whose main phase is silt, but with significant clay.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sand silt clay
Enumerated_Domain_Value_Definition:
Sediment with significant (over 20 percent) sand, silt, and clay
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: silty clay
Enumerated_Domain_Value_Definition: Sediment whose main phase is clay, but with significant silt.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sandy silt
Enumerated_Domain_Value_Definition: Sediment whose main phase is silt, but with significant sand.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: silty sand
Enumerated_Domain_Value_Definition: Sediment whose main phase is silt, but with significant sand.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sand
Enumerated_Domain_Value_Definition:
Sediment whose main phase is less than 2 mm, but greater than or equal to 0.062 mm.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: gravelly sediment
Enumerated_Domain_Value_Definition:
Sediment with gravel component equal to or greater than 10 percent, but less than 50 percent
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: clay
Enumerated_Domain_Value_Definition: Sediment whose main phase is less than 0.004 mm.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: clayey sand
Enumerated_Domain_Value_Definition: Sediment whose main phase is sand, but with significant clay.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: silt
Enumerated_Domain_Value_Definition:
Sediment whose main phase is less than 2 mm but greater than or equal to 0.0625 mm; 0 phi through 4 phi
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute:
Attribute_Label: MEDIAN
Attribute_Definition: Middle point in the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.85
Range_Domain_Maximum: 10.39
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: MEAN
Attribute_Definition: Average value in the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.46
Range_Domain_Maximum: 9.44
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: STDEV
Attribute_Definition:
Standard deviation (root mean square of the deviations) of the grain size distribution in phi units (sorting).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.55
Range_Domain_Maximum: 3.57
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SKEWNESS
Attribute_Definition:
Skewness (deviation from symmetrical form) of the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -2.24
Range_Domain_Maximum: 5.17
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: KURTOSIS
Attribute_Definition:
Kurtosis (degree of curvature near the mode) of the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.59
Range_Domain_Maximum: 39.63
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI11
Attribute_Definition:
11 Phi - Weight percent of the sample in the 11 Phi fraction and finer (nominal diameter of particles less than 0.001 mm); fine clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 21.01
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI10
Attribute_Definition:
10 Phi - Weight percent of the sample in the 10 Phi fraction (nominal diameter of particles greater than or equal to 0.001 mm, but less than 0.002 mm); medium clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 34.68
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI9
Attribute_Definition:
9 Phi - Weight percent of the sample in the 9 Phi fraction (nominal diameter of particles greater than or equal to 0.002 mm, but less than 0.004 mm); coarse clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 37.35
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI8
Attribute_Definition:
8 Phi - Weight percent of the sample in the 8 Phi fraction (nominal diameter of particles greater than or equal to 0.004 mm, but less than 0.008 mm); very fine silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 31.60
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI7
Attribute_Definition:
7 Phi - Weight percent of the sample in the 7 Phi fraction (nominal diameter of particles greater than or equal to 0.008 mm, but less than 0.016 mm); fine silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 47.41
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI6
Attribute_Definition:
6 Phi - Weight percent of the sample in the 6 Phi fraction (nominal diameter of particles greater than or equal to 0.016 mm, but less than 0.031 mm); medium silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 34.11
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI5
Attribute_Definition:
5 Phi - Weight percent of the sample in the 5 Phi fraction (nominal diameter of particles greater than or equal to 0.031 mm, but less than 0.0625 mm); coarse silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 65.37
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI4
Attribute_Definition:
4 Phi - Weight percent of the sample in the 4 Phi fraction (nominal diameters of particles greater than or equal to .0625 mm, but less than 0.125 mm); very fine sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.5
Range_Domain_Maximum: 85.89
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI3
Attribute_Definition:
3 Phi - Weight percent of the sample in the 3 Phi fraction (nominal diameter of particles greater than or equal to 0.125 mm, but less than 0.25 mm); fine sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 68.25
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI2
Attribute_Definition:
2 Phi - Weight percent of the sample in the 2 Phi fraction (nominal diameter of particles greater than or equal to 0.25 mm, but less than 0.5 mm); medium sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 81.9
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI1
Attribute_Definition:
1 Phi - Weight percent of the sample in the 1 Phi fraction (nominal diameter of particles greater than or equal to 0.5 mm, but less than 1 mm); coarse sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 43.01
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI0
Attribute_Definition:
0 Phi - Weight percent of the sample in the 0 Phi fraction (nominal diameters of particles greater than or equal to 1 mm, but less than 2 mm); very coarse sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 16.68
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm1
Attribute_Definition:
-1 Phi - Weight percent of the sample in the -1 Phi fraction (nominal diameter of particles greater than or equal to 2 mm, but less than 4 mm); very fine pebbles (granules).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 4.85
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm2
Attribute_Definition:
-2 Phi - Weight percent of the sample in the -2 Phi fraction (nominal diameter of particles greater than or equal to 4 mm, but less than 8 mm); fine pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 28.19
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm3
Attribute_Definition:
-3 Phi - Weight percent of the sample in the -3 Phi fraction (nominal diameter of particles greater than or equal to 8 mm, but less than 16 mm); medium pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 11.66
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm4
Attribute_Definition:
-4 Phi - Weight percent of the sample in the -4 Phi fraction (nominal diameter of particles greater than or equal to 16 mm, but less than 32 mm); coarse pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 17.72
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm5
Attribute_Definition:
-5 Phi - Weight percent of the sample in the -5 Phi fraction and coarser (nominal diameter of particles greater than or equal to 32 mm); very coarse pebbles, cobbles, and boulders.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 6.93
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: ANALYST
Attribute_Definition: Analyst who performed grain size laboratory analysis
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ARP
Enumerated_Domain_Value_Definition: Allison R. Paquette
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: DATA QUALITY GRADE
Attribute_Definition:
Samples are assigned a quality grade based on the examination of the analytical data. Data quality grades may be determined by several factors, and any comments or notes about the data for a particular sample are included in the results table for that sample under "comments". Quality grades for sample data that do not have any additional comments are assigned based on the calculated percent difference between the weights of the coarse fraction remaining after wet sieving and the sum of all of the weighed fractions after dry sieving the coarse fraction, indicating an estimated differing amount of material which could skew the calculated grain size results.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A
Enumerated_Domain_Value_Definition: Coarse fraction percent differences between 0% and ±1.5%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: B
Enumerated_Domain_Value_Definition: Coarse fraction percent differences between ±1.5% and ±3%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: D
Enumerated_Domain_Value_Definition:
Coarse fraction percent differences between percent differences greater than ±4.5%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: C
Enumerated_Domain_Value_Definition: Coarse fraction percent differences between ±3% and ±4.5%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: GRADE QUALIFIER
Attribute_Definition: Scientist who determined the data quality grade of sample
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: BJB
Enumerated_Domain_Value_Definition: Brian J. Buczkowski
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: JDC
Enumerated_Domain_Value_Definition: Jason D. Chaytor
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: COMMENTS
Attribute_Definition:
Information about percent difference between initial calculated coarse fraction (3 phi and coarser) weight and the sum of the sieved and weighed coarse material.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: << empty cell >>
Enumerated_Domain_Value_Definition: No comments given for sample by grade qualifier
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Unrepresentable_Domain:
character string; statement of justification for data quality grade
Detailed_Description:
Entity_Type:
Entity_Type_Label: EN577_GrainSize_TriggerCores.csv
Entity_Type_Definition:
Comma Separated Value (CSV) file containing grain-size data for NEMP trigger cores. Point dataset. 77 data records.
Entity_Type_Definition_Source: Producer Defined
Attribute:
Attribute_Label: SAMPLE_ID
Attribute_Definition:
Sample ID. Naming convention: FFFFF-CC-T-GS-# (FFFFF= Field ID abbreviation) (CC=Core ID) (T=Trigger Core) (GS= Indicates Grain Size Sample) (# = Sample Number)
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: FAN
Attribute_Definition: Field activity number assigned by center.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2016-001-FA
Enumerated_Domain_Value_Definition: R/V Endeavor Cruise EN577
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: CONTACT
Attribute_Definition: Contact for samples
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: JCHAYTOR
Enumerated_Domain_Value_Definition: Jason D. Chaytor
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: AREA
Attribute_Definition: General area where samples were taken
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Southern New England Mud Patch
Enumerated_Domain_Value_Definition: Southern New England Mud Patch
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: CORE_ID
Attribute_Definition:
Core identification number assigned in field. Naming convention EN577-XXPC (EN577=Cruise ID) (XX=Core number) (PC=Piston Core)
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: LATITUDE
Attribute_Definition: Latitude of core that grain-size data came from
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 40.305839
Range_Domain_Maximum: 40.520818
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: LONGITUDE
Attribute_Definition: Longitude of core that grain-size data came from
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -70.7472293
Range_Domain_Maximum: -70.482964
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: WATER_DEPTH
Attribute_Definition: Water depth at location where core was collected
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 68.6
Range_Domain_Maximum: 107.9
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.1
Attribute:
Attribute_Label: SAMPLE_DEPTH_TOP
Attribute_Definition: Top of interval that was sampled for grain-size analysis
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 65
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: SAMPLE_DEPTH_BOTTOM
Attribute_Definition: Bottom of interval that was sampled for grain-size analysis
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 66
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: DEVICE
Attribute_Definition: Device used to collect core
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: PISTON CORER
Enumerated_Domain_Value_Definition: Piston Corer
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: DATE_COLLECTED
Attribute_Definition:
Date that core was collected. Format: MM/DD/YYYY (MM= Month) (DD=Day) (YYYY=Year)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: DATE_ANALYZED
Attribute_Definition:
Date that grain-size analysis was completed. Format: MM/DD/YYYY (MM= Month) (DD=Day) (YYYY=Year)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: WEIGHT
Attribute_Definition: Weight of dry sample
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.367
Range_Domain_Maximum: 10.760
Attribute_Units_of_Measure: grams
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: GRAVEL_PCT
Attribute_Definition:
Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; -1 Phi and coarser).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 2.29
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SAND_PCT
Attribute_Definition:
Sand content in percent dry weight of the sample (particles with nominal diameters less than 2 mm, but greater than or equal to 0.0625 mm; 0 Phi through 4 Phi).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 10.56
Range_Domain_Maximum: 56.33
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SILT_PCT
Attribute_Definition:
Silt content in percent dry weight of the sample (particles with nominal diameters less than 0.0625 mm, but greater than or equal to 0.004 mm; 5 Phi through 8 Phi, inclusive).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 31.43
Range_Domain_Maximum: 80.61
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: CLAY_PCT
Attribute_Definition:
Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9 Phi and finer).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 40.82
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: CLASSIFICATION
Attribute_Definition:
Sediment description based on a rigorous definition, usually Shepard (1954) as modified by Schlee (1973) and Poppe and others ( 2005).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: clayey silt
Enumerated_Domain_Value_Definition: Sediment whose main phase is silt, but with significant clay.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sand silt clay
Enumerated_Domain_Value_Definition:
Sediment with significant (over 20 percent) sand, silt, and clay
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: silty clay
Enumerated_Domain_Value_Definition: Sediment whose main phase is clay, but with significant silt.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sandy silt
Enumerated_Domain_Value_Definition: Sediment whose main phase is silt, but with significant sand.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: silty sand
Enumerated_Domain_Value_Definition: Sediment whose main phase is silt, but with significant sand.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sand
Enumerated_Domain_Value_Definition:
Sediment whose main phase is less than 2 mm, but greater than or equal to 0.062 mm.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: gravelly sediment
Enumerated_Domain_Value_Definition:
Sediment with gravel component equal to or greater than 10 percent, but less than 50 percent
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: clay
Enumerated_Domain_Value_Definition: Sediment whose main phase is less than 0.004 mm.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: clayey sand
Enumerated_Domain_Value_Definition: Sediment whose main phase is sand, but with significant clay.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: silt
Enumerated_Domain_Value_Definition:
Sediment whose main phase is less than 2 mm but greater than or equal to 0.0625 mm; 0 phi through 4 phi
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute:
Attribute_Label: MEDIAN
Attribute_Definition: Middle point in the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.89
Range_Domain_Maximum: 7.56
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: MEAN
Attribute_Definition: Average value in the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.54
Range_Domain_Maximum: 6.99
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: STDEV
Attribute_Definition:
Standard deviation (root mean square of the deviations) of the grain size distribution in phi units (sorting).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.31
Range_Domain_Maximum: 2.33
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SKEWNESS
Attribute_Definition:
Skewness (deviation from symmetrical form) of the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.82
Range_Domain_Maximum: 1.56
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: KURTOSIS
Attribute_Definition:
Kurtosis (degree of curvature near the mode) of the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.13
Range_Domain_Maximum: 5.99
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI11
Attribute_Definition:
11 Phi - Weight percent of the sample in the 11 Phi fraction and finer (nominal diameter of particles less than 0.001 mm); fine clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 11.17
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI10
Attribute_Definition:
10 Phi - Weight percent of the sample in the 10 Phi fraction (nominal diameter of particles greater than or equal to 0.001 mm, but less than 0.002 mm); medium clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 14.55
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI9
Attribute_Definition:
9 Phi - Weight percent of the sample in the 9 Phi fraction (nominal diameter of particles greater than or equal to 0.002 mm, but less than 0.004 mm); coarse clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 26.14
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI8
Attribute_Definition:
8 Phi - Weight percent of the sample in the 8 Phi fraction (nominal diameter of particles greater than or equal to 0.004 mm, but less than 0.008 mm); very fine silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.07
Range_Domain_Maximum: 29.90
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI7
Attribute_Definition:
7 Phi - Weight percent of the sample in the 7 Phi fraction (nominal diameter of particles greater than or equal to 0.008 mm, but less than 0.016 mm); fine silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.55
Range_Domain_Maximum: 51.54
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI6
Attribute_Definition:
6 Phi - Weight percent of the sample in the 6 Phi fraction (nominal diameter of particles greater than or equal to 0.016 mm, but less than 0.031 mm); medium silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.11
Range_Domain_Maximum: 32.75
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI5
Attribute_Definition:
5 Phi - Weight percent of the sample in the 5 Phi fraction (nominal diameter of particles greater than or equal to 0.031 mm, but less than 0.0625 mm); coarse silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.53
Range_Domain_Maximum: 60.07
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI4
Attribute_Definition:
4 Phi - Weight percent of the sample in the 4 Phi fraction (nominal diameters of particles greater than or equal to .0625 mm, but less than 0.125 mm); very fine sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 10.51
Range_Domain_Maximum: 55.15
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI3
Attribute_Definition:
3 Phi - Weight percent of the sample in the 3 Phi fraction (nominal diameter of particles greater than or equal to 0.125 mm, but less than 0.25 mm); fine sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 1.44
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI2
Attribute_Definition:
2 Phi - Weight percent of the sample in the 2 Phi fraction (nominal diameter of particles greater than or equal to 0.25 mm, but less than 0.5 mm); medium sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 0.37
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI1
Attribute_Definition:
1 Phi - Weight percent of the sample in the 1 Phi fraction (nominal diameter of particles greater than or equal to 0.5 mm, but less than 1 mm); coarse sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 0.19
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI0
Attribute_Definition:
0 Phi - Weight percent of the sample in the 0 Phi fraction (nominal diameters of particles greater than or equal to 1 mm, but less than 2 mm); very coarse sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 0.12
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm1
Attribute_Definition:
-1 Phi - Weight percent of the sample in the -1 Phi fraction (nominal diameter of particles greater than or equal to 2 mm, but less than 4 mm); very fine pebbles (granules).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 0.22
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm2
Attribute_Definition:
-2 Phi - Weight percent of the sample in the -2 Phi fraction (nominal diameter of particles greater than or equal to 4 mm, but less than 8 mm); fine pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 2.18
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm3
Attribute_Definition:
-3 Phi - Weight percent of the sample in the -3 Phi fraction (nominal diameter of particles greater than or equal to 8 mm, but less than 16 mm); medium pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.0
Range_Domain_Maximum: 0.00
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm4
Attribute_Definition:
-4 Phi - Weight percent of the sample in the -4 Phi fraction (nominal diameter of particles greater than or equal to 16 mm, but less than 32 mm); coarse pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 0.00
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm5
Attribute_Definition:
-5 Phi - Weight percent of the sample in the -5 Phi fraction and coarser (nominal diameter of particles greater than or equal to 32 mm); very coarse pebbles, cobbles, and boulders.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 0.00
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: ANALYST
Attribute_Definition: Analyst who performed grain size laboratory analysiss
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ARP
Enumerated_Domain_Value_Definition: Allison R. Paquette
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: DATA QUALITY GRADE
Attribute_Definition:
Samples are assigned a quality grade based on the examination of the analytical data. Data quality grades may be determined by several factors, and any comments or notes about the data for a particular sample are included in the results table for that sample under "comments". Quality grades for sample data that do not have any additional comments are assigned based on the calculated percent difference between the weights of the coarse fraction remaining after wet sieving and the sum of all of the weighed fractions after dry sieving the coarse fraction, indicating an estimated differing amount of material which could skew the calculated grain size results.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A
Enumerated_Domain_Value_Definition: Coarse fraction percent differences between 0% and ±1.5%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: B
Enumerated_Domain_Value_Definition: Coarse fraction percent differences between ±1.5% and ±3%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: C
Enumerated_Domain_Value_Definition: Coarse fraction percent differences between ±3% and ±4.5%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: GRADE QUALIFIER
Attribute_Definition: Scientist who determined the data quality grade of sample
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: BJB
Enumerated_Domain_Value_Definition: Brian J. Buczkowski
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: JDC
Enumerated_Domain_Value_Definition: Jason D. Chaytor
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: COMMENTS
Attribute_Definition:
Information about percent difference between initial calculated coarse fraction (3 phi and coarser) weight and the sum of the sieved and weighed coarse material.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: << empty cell >>
Enumerated_Domain_Value_Definition: No comments given for sample by grade qualifier
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Unrepresentable_Domain:
character string; statement of justification for data quality grade
Detailed_Description:
Entity_Type:
Entity_Type_Label: EN577_GrainSize_AcousticCores.csv
Entity_Type_Definition:
Comma Separated Value (CSV) file containing grain size data for NEMP acoustic/gravity cores. Point dataset. 58 data records.
Entity_Type_Definition_Source: Producer Defined
Attribute:
Attribute_Label: SAMPLE_ID
Attribute_Definition:
Sample ID. Naming convention: FFFFF-CC-G-GS-# (FFFFF= Field ID abbreviation) (CC=Core ID) (G=Gravity/Acoustic Core) (GS= Indicates Grain Size Sample) (# = Sample Number)
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: FAN
Attribute_Definition: Field activity number assigned by center.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2016-001-FA
Enumerated_Domain_Value_Definition: R/V Endeavor Cruise EN577
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: CONTACT
Attribute_Definition: Contact for samples
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: JCHAYTOR
Enumerated_Domain_Value_Definition: Jason D. Chaytor
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: AREA
Attribute_Definition: General area where samples were taken
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Mud Patch
Enumerated_Domain_Value_Definition: Southern New England Mud Patch
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: CORE_ID
Attribute_Definition:
Core identification number assigned in field. Naming convention EN577-ACXX (EN577=Cruise ID) (AC Core) (XX=Core number)
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: LATITUDE
Attribute_Definition: Latitude of core that grain-size data came from
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 40.4329
Range_Domain_Maximum: 40.48132
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: LONGITUDE
Attribute_Definition: Longitude of core that grain-size data came from
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -70.792517
Range_Domain_Maximum: -70.59867
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: WATER_DEPTH
Attribute_Definition: Water depth at location where core was collected
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 76
Range_Domain_Maximum: 86
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: SAMPLE_DEPTH_TOP
Attribute_Definition: Top of interval that was sampled for grain-size analysis
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 226
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: SAMPLE_DEPTH_BOTTOM
Attribute_Definition: Bottom of interval that was sampled for grain-size analysis
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3
Range_Domain_Maximum: 227
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: DEVICE
Attribute_Definition: Device used to collect core
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: GRAVITY (ACOUSTIC) CORER
Enumerated_Domain_Value_Definition: Gravity (Acoustic) Corer
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: DATE_COLLECTED
Attribute_Definition:
Date that core was collected. Format: MM/DD/YYYY (MM= Month) (DD=Day) (YYYY=Year)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: DATE_ANALYZED
Attribute_Definition:
Date that grain-size analysis was completed. Format: MM/DD/YYYY (MM= Month) (DD=Day) (YYYY=Year)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: character string
Attribute:
Attribute_Label: WEIGHT
Attribute_Definition: Weight of dry sample
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.3660
Range_Domain_Maximum: 11.5893
Attribute_Units_of_Measure: grams
Attribute_Measurement_Resolution: 0.001
Attribute:
Attribute_Label: GRAVEL_PCT
Attribute_Definition:
Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; -1 Phi and coarser).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 5.75
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SAND_PCT
Attribute_Definition:
Sand content in percent dry weight of the sample (particles with nominal diameters less than 2 mm, but greater than or equal to 0.0625 mm; 0 Phi through 4 Phi).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 6.48
Range_Domain_Maximum: 64.72
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SILT_PCT
Attribute_Definition:
Silt content in percent dry weight of the sample (particles with nominal diameters less than 0.0625 mm, but greater than or equal to 0.004 mm; 5 Phi through 8 Phi, inclusive).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 23.48
Range_Domain_Maximum: 78.19
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: CLAY_PCT
Attribute_Definition:
Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9 Phi and finer).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.82
Range_Domain_Maximum: 47.89
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: CLASSIFICATION
Attribute_Definition:
Sediment description based on a rigorous definition, usually Shepard (1954) as modified by Schlee (1973) and Poppe and others ( 2005).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: clayey silt
Enumerated_Domain_Value_Definition: Sediment whose main phase is silt, but with significant clay.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sand silt clay
Enumerated_Domain_Value_Definition:
Sediment with significant (over 20 percent) sand, silt, and clay
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: silty clay
Enumerated_Domain_Value_Definition: Sediment whose main phase is clay, but with significant silt.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sandy silt
Enumerated_Domain_Value_Definition: Sediment whose main phase is silt, but with significant sand.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: silty sand
Enumerated_Domain_Value_Definition: Sediment whose main phase is silt, but with significant sand.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sand
Enumerated_Domain_Value_Definition:
Sediment whose main phase is less than 2 mm, but greater than or equal to 0.062 mm.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: gravelly sediment
Enumerated_Domain_Value_Definition:
Sediment with gravel component equal to or greater than 10 percent, but less than 50 percent
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: clay
Enumerated_Domain_Value_Definition: Sediment whose main phase is less than 0.004 mm.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: clayey sand
Enumerated_Domain_Value_Definition: Sediment whose main phase is sand, but with significant clay.
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: silt
Enumerated_Domain_Value_Definition:
Sediment whose main phase is less than 2 mm but greater than or equal to 0.0625 mm; 0 phi through 4 phi
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute:
Attribute_Label: MEDIAN
Attribute_Definition: Middle point in the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.39
Range_Domain_Maximum: 7.88
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: MEAN
Attribute_Definition: Average value in the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.03
Range_Domain_Maximum: 7.01
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: STDEV
Attribute_Definition:
Standard deviation (root mean square of the deviations) of the grain size distribution in phi units (sorting).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.57
Range_Domain_Maximum: 2.78
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: SKEWNESS
Attribute_Definition:
Skewness (deviation from symmetrical form) of the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -2.24
Range_Domain_Maximum: 5.17
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: KURTOSIS
Attribute_Definition:
Kurtosis (degree of curvature near the mode) of the grain size distribution in phi units.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.13
Range_Domain_Maximum: 3.03
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI11
Attribute_Definition:
11 Phi - Weight percent of the sample in the 11 Phi fraction and finer (nominal diameter of particles less than 0.001 mm); fine clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 13.17
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI10
Attribute_Definition:
10 Phi - Weight percent of the sample in the 10 Phi fraction (nominal diameter of particles greater than or equal to 0.001 mm, but less than 0.002 mm); medium clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 18.26
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI9
Attribute_Definition:
9 Phi - Weight percent of the sample in the 9 Phi fraction (nominal diameter of particles greater than or equal to 0.002 mm, but less than 0.004 mm); coarse clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.90
Range_Domain_Maximum: 28.62
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI8
Attribute_Definition:
8 Phi - Weight percent of the sample in the 8 Phi fraction (nominal diameter of particles greater than or equal to 0.004 mm, but less than 0.008 mm); very fine silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.08
Range_Domain_Maximum: 29.90
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI7
Attribute_Definition:
7 Phi - Weight percent of the sample in the 7 Phi fraction (nominal diameter of particles greater than or equal to 0.008 mm, but less than 0.016 mm); fine silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.35
Range_Domain_Maximum: 24.82
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI6
Attribute_Definition:
6 Phi - Weight percent of the sample in the 6 Phi fraction (nominal diameter of particles greater than or equal to 0.016 mm, but less than 0.031 mm); medium silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.14
Range_Domain_Maximum: 25.28
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI5
Attribute_Definition:
5 Phi - Weight percent of the sample in the 5 Phi fraction (nominal diameter of particles greater than or equal to 0.031 mm, but less than 0.0625 mm); coarse silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.79
Range_Domain_Maximum: 53.40
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI4
Attribute_Definition:
4 Phi - Weight percent of the sample in the 4 Phi fraction (nominal diameters of particles greater than or equal to .0625 mm, but less than 0.125 mm); very fine sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 6.42
Range_Domain_Maximum: 27.91
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI3
Attribute_Definition:
3 Phi - Weight percent of the sample in the 3 Phi fraction (nominal diameter of particles greater than or equal to 0.125 mm, but less than 0.25 mm); fine sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 16.66
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI2
Attribute_Definition:
2 Phi - Weight percent of the sample in the 2 Phi fraction (nominal diameter of particles greater than or equal to 0.25 mm, but less than 0.5 mm); medium sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 26.88
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI1
Attribute_Definition:
1 Phi - Weight percent of the sample in the 1 Phi fraction (nominal diameter of particles greater than or equal to 0.5 mm, but less than 1 mm); coarse sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 9.87
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI0
Attribute_Definition:
0 Phi - Weight percent of the sample in the 0 Phi fraction (nominal diameters of particles greater than or equal to 1 mm, but less than 2 mm); very coarse sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 1.18
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm1
Attribute_Definition:
-1 Phi - Weight percent of the sample in the -1 Phi fraction (nominal diameter of particles greater than or equal to 2 mm, but less than 4 mm); very fine pebbles (granules).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 1.28
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm2
Attribute_Definition:
-2 Phi - Weight percent of the sample in the -2 Phi fraction (nominal diameter of particles greater than or equal to 4 mm, but less than 8 mm); fine pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 4.47
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm3
Attribute_Definition:
-3 Phi - Weight percent of the sample in the -3 Phi fraction (nominal diameter of particles greater than or equal to 8 mm, but less than 16 mm); medium pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 0.00
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm4
Attribute_Definition:
-4 Phi - Weight percent of the sample in the -4 Phi fraction (nominal diameter of particles greater than or equal to 16 mm, but less than 32 mm); coarse pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 0.00
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIm5
Attribute_Definition:
-5 Phi - Weight percent of the sample in the -5 Phi fraction and coarser (nominal diameter of particles greater than or equal to 32 mm); very coarse pebbles, cobbles, and boulders.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 0.00
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: ANALYST
Attribute_Definition: Analyst who performed grain size laboratory analysiss
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ARP
Enumerated_Domain_Value_Definition: Allison R. Paquette
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: DATA QUALITY GRADE
Attribute_Definition:
Samples are assigned a quality grade based on the examination of the analytical data. Data quality grades may be determined by several factors, and any comments or notes about the data for a particular sample are included in the results table for that sample under "comments". Quality grades for sample data that do not have any additional comments are assigned based on the calculated percent difference between the weights of the coarse fraction remaining after wet sieving and the sum of all of the weighed fractions after dry sieving the coarse fraction, indicating an estimated differing amount of material which could skew the calculated grain size results.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A
Enumerated_Domain_Value_Definition: Coarse fraction percent differences between 0% and ±1.5%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: B
Enumerated_Domain_Value_Definition: Coarse fraction percent differences between ±1.5% and ±3%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: D
Enumerated_Domain_Value_Definition:
Coarse fraction percent differences between percent differences greater than ±4.5%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: C
Enumerated_Domain_Value_Definition: Coarse fraction percent differences between ±3% and ±4.5%
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: GRADE QUALIFIER
Attribute_Definition: Scientist who determined the data quality grade of sample
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: BJB
Enumerated_Domain_Value_Definition: Brian J. Buczkowski
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: JDC
Enumerated_Domain_Value_Definition: Jason D. Chaytor
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute:
Attribute_Label: COMMENTS
Attribute_Definition:
Information about percent difference between initial calculated coarse fraction (3 phi and coarser) weight and the sum of the sieved and weighed coarse material.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: << empty cell >>
Enumerated_Domain_Value_Definition: No comments given for sample by grade qualifier
Enumerated_Domain_Value_Definition_Source: Producer defined
Attribute_Domain_Values:
Unrepresentable_Domain:
character string; statement of justification for data quality grade
Overview_Description:
Entity_and_Attribute_Overview:
Finalized undrained grain size data was taken from a master table of calculations and compiled into three CSV (comma-separated value)spreadsheet files pertaining to each core type (piston, trigger, and acoustic cores).
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - ScienceBase
Contact_Address:
Address_Type: mailing and physical
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: United States
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
The dataset includes the data files (EN577_GrainSize_PistonCores.csv, EN577_GrainSize_TriggerCores.csv, EN577_GrainSize_AcousticCores.csv), the browse graphic (MudPatchCores_BrowseGraphic.png) and the FGDC CSDGM metadata in XML format (EN577_GrainSize_Metadata.xml).
Distribution_Liability:
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Version_Number: Microsoft Excel 2008
Format_Information_Content: Comma separated value spreadsheet
Transfer_Size: 1.32
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Computer_Contact_Information: Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.5066/P9ZYK3PX
Access_Instructions:
The first link is to download the data in a ZIP file. The second link is to the dataset landing page where files can be downloaded individually. The third link is to the main landing page of the data release.
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20211117
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Allyson A Boggess
Contact_Organization: U.S. Geological Survey, NORTHEAST REGION
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: US
Contact_Voice_Telephone: 508-548-8700 x2341
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: aboggess@usgs.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P9ZYK3PX/EN577_GrainSize_Metadata.html>
Generated by mp version 2.9.50 on Thu Nov 18 14:49:53 2021