Locations and analyses of sediment samples collected on Stellwagen Bank during U.S. Geological Survey field activity 2017-043-FA, aboard the R/V Auk, Aug 22 and 23, 2017 (geographic, WGS84)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Page C. Valentine
Publication_Date: 2018
Title:
Locations and analyses of sediment samples collected on Stellwagen Bank during U.S. Geological Survey field activity 2017-043-FA, aboard the R/V Auk, Aug 22 and 23, 2017 (geographic, WGS84)
Edition: 1.0
Geospatial_Data_Presentation_Form: tabular and vector digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9A57QWI
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.5066/P9A57QWI
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Page C. Valentine
Originator: VeeAnn A. Cross
Publication_Date: 2018
Title:
Sea-Floor Sediment Samples, Seabed Imagery, and CTD Instrument Data Collected on Stellwagen Bank in August 2017, U.S. Geological Survey Field Activity 2017-043-FA
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9A57QWI
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Valentine, P.C., and Cross, V.A., 2018, Sea-floor sediment samples, seabed imagery, and CTD instrument data collected on Stellwagen Bank in August 2017, U.S. Geological Survey Field Activity 2017-043-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9A57QWI.
Online_Linkage: https://doi.org/10.5066/P9A57QWI
Online_Linkage:
Description:
Abstract:
This field activity is part of an effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts. The overall goal is to develop high-resolution (1:25,000-scale) interpretive maps, based on multibeam sonar data and seabed sampling, showing surficial geology and seabed sediment dynamics. The data collected in this study will aid research on the ecology of fish and invertebrate species that inhabit the region. On August 22 and 23, 2017, the U.S. Geological Survey, in collaboration with the Stellwagen Bank National Marine Sanctuary, conducted a research cruise aboard the Sanctuary’s Research Vessel Auk, visiting 39 locations within the sanctuary. A customized Van Veen grab sampler (SEABOSS) equipped with a video camera and a conductivity, temperature, and depth (CTD) instrument was deployed in drift mode to collect sediment for grain-size analysis, video imagery of the seabed, and measurements of water column properties.
Purpose:
These sediment samples analyzed for grain-size composition, along with seabed imagery, will be used to describe the surficial geological substrates present in the study area.
Supplemental_Information:
Additional information regarding this field activity is available from https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-043-FA.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20170822
Ending_Date: 20170823
Currentness_Reference: ground condition of when data were collected.
Status:
Progress: complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.409000
East_Bounding_Coordinate: -70.226400
North_Bounding_Coordinate: 42.193900
South_Bounding_Coordinate: 42.084500
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:758e9f60-f74c-4a21-b038-2423eec2c7ed
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: sea floor samples
Theme_Keyword: sediment samples
Theme_Keyword: ground-truth
Theme_Keyword: SEABed Observation and Sampling System
Theme_Keyword: SEABOSS
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme_Keyword: location
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: field monitoring stations
Theme_Keyword: sea-floor characteristics
Theme_Keyword: marine geology
Theme_Keyword: grain-size analysis
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: Massachusetts
Place_Keyword: Atlantic Ocean
Place_Keyword: Stellwagen Bank
Place_Keyword: Stellwagen Bank National Marine Sanctuary
Place_Keyword: SBNMS
Place_Keyword: Massachusetts Bay
Access_Constraints: None.
Use_Constraints: Not to be used for navigation.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Page C. Valentine
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2239
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: pvalentine@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Browse graphic of the sediment sample locations collected on Stellwagen Bank.
Browse_Graphic_File_Type: JPEG
Cross_Reference:
Citation_Information:
Originator: D.S. Blackwood
Originator: K.F. Parolski
Publication_Date: 2001
Title: Seabed observation and sampling system
Series_Information:
Series_Name: Sea Technology
Issue_Identification: v. 42, no. 2, p.39-43
Cross_Reference:
Citation_Information:
Originator: P. Valentine
Originator: D. Blackwood
Originator: K. Parolski
Publication_Date: 2000
Title: Seabed observation and sampling system
Series_Information:
Series_Name: U.S. Geological Survey Fact Sheet
Issue_Identification: FS-142-00
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/fs/fs142-00/
Cross_Reference:
Citation_Information:
Originator: L.J. Poppe
Originator: K.Y. McMullen
Originator: S.J. Williams
Originator: V.F. Paskevich
Publication_Date: 2014
Title:
USGS east-coast sediment analysis: Procedures, database, and GIS data
Edition: 3.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1001
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2005/1001/
Data_Quality_Information:
Logical_Consistency_Report:
These are the sediment analyses returned to the scientist after analysis in the Woods Hole Coastal and Marine Science Center sediment lab. The sediment sample locations have values carried out to 4 decimal places which was the information given to (and therefore returned from) the analysis lab. The 2017-043-FA_station_data_summary data file available from the larger work citation has the sample locations carried out to 5 decimal places. This results in a slight difference between the values in this data file and those in the station summary data file.
Completeness_Report:
These data represent all the sediment samples collected as part of the field activity. However, a sample was not acquired at every station. Samples were discarded at sea if the sediment composition was visibly altered during collection, for example if the sampler did not close properly causing sediment to be lost during recovery of the sample. A total of 37 sediment samples were collected; stations without samples are: 4652 and 4671.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The location information for stations was acquired from a satellite navigation receiver (Furuno satellite compass SC-30, GPS receiver) at two second intervals with a horizontal accuracy of 10 m. The navigation antenna is located 5.3 m forward of the SEABOSS deployment location. This offset was not accounted for in the navigation acquisition (navigation fixes represent antenna location).
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Water depth was determined using a Simrad ES60, 120 kHz, single beam echosounder using a 120-25 transducer, which detects the seabed to a depth of 800 m. Depth values were rounded to the nearest meter to account for ship motion and recorded in the log book.
Lineage:
Process_Step:
Process_Description:
Sediment sampling methods:
As a part of the process of mapping the sea floor, the USGS developed the SEABed Observation and Sampling System (SEABOSS) to collect samples and video and photographic images of the seabed to aid in the interpretation of seabed sonar imagery. A modified Van Veen sediment grab sampler is mounted in the center of the SEABOSS frame, which ensures the sampler is properly oriented on the seabed when a sample is collected. Before deployment, the sampler bucket's jaws are opened by collapsing the extended arms to a near-horizontal position and locking them in place with two catches. The sampler operates passively to sample the seabed; it is not spring loaded.
To collect a sediment sample, the SEABOSS frame was lowered gently onto the seabed, reducing tension on the cable, which caused the two locking catches to be automatically released by gravity. As the cable was retrieved, the grab sampler's arms were pulled upward, closing the bucket around the sediment, and the SEABOSS was lifted off the seabed.
The SEABOSS was retrieved and set upon a wooden platform that kept the sampler bucket and camera systems above the deck. The sampler's arms were held in the upright position manually or by tension on the cable, the two doors on the upper side of the bucket were opened, and the sediment was removed. For this project, the upper 2 cm of sediment, representing the surface of the seabed, were removed with a rectangular shovel 2-cm deep and stored in a plastic bag for grain-size analysis. The remaining sediment was dumped into a tray on the deck below the sampler and discarded, after which the sampler was washed in preparation for sampling at the next site. Further information on the SEABOSS can be found in Valentine and others (2000).
Process_Date: 2017
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Page C. Valentine
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2239
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: pvalentine@usgs.gov
Process_Step:
Process_Description:
Samples were analyzed in the sediment laboratory at the USGS Woods Hole Coastal and Marine Science Center. Coarse fraction determined by sieve; fine fraction determined by Coulter Counter. See Poppe and others (2014) for analytical specifics for grain size measurement processes. Sediment statistics were recorded in MS Excel file and returned to the scientist.
Process_Date: 2017
Process_Step:
Process_Description:
The Excel spreadsheet was exported as an MS-DOS CSV file using Excel 2013.
Process_Date: 2017
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
Process_Step:
Process_Description:
Using ArcGIS 10.3.1, the CSV file was converted to a shapefile within ArcMap using File - Add Data - Add XY data. The CSV file was selected, with the x-coordinate set to LONGITUDE and the y-coordinate set to LATITUDE. The coordinate system of the input coordinates was set to the geographic coordinate system GCS_WGS_1984. Once the event theme was added to ArcMap, the data were then converted to a shapefile by right-clicking on the event theme - Data - Export Data. All of the features were exported using the layer's source data for the coordinate system. The output shapefile was set to 2017-043-FA_sedsamps.shp.
Process_Date: 20180108
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
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20200908
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_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: point
Point_and_Vector_Object_Count: 37
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.00001
Longitude_Resolution: 0.00001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: local surface
Depth_Resolution: 1
Depth_Distance_Units: meters
Depth_Encoding_Method: Attribute values
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label:
sediment sample location and analyses in Excel spreadsheet format. The attributes defined refer to the Excel spreadsheet column headings, and are also in the header row of the CSV file. The shapefile has these attributes (except ANALYSIS_I instead of ANALYSIS_ID and CLASSIFICA instead of CLASSIFICATION), and the software generated FID and shape, defined in the entity and attribute overview section.
Entity_Type_Definition: Sample locations and texture analysis.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: ANALYSIS_ID
Attribute_Definition:
Unique identification number generated in the sedimentation laboratory of the USGS's Woods Hole Coastal and Marine Science Center. This identifier consists of 2 characters followed by a dash and 6 numerics.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: FIELD_NO
Attribute_Definition:
Sample or station name or number as assigned in the field by the Chief Scientist.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: PROJECT
Attribute_Definition:
Name of project or project number under which samples were taken or data generated; sometimes project name indicates a more specific area.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: CRUISE_ID
Attribute_Definition:
Name or number of cruise on which sample collected. The cruise identifier is in the format YYYY-XXX where YYYY is the survey year, and XXX is the survey number of that year.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: CONTACT
Attribute_Definition:
Name of Principal Investigator or Chief Scientist responsible for data collection (usually first initial and last name) when available.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: AREA
Attribute_Definition:
General geographic area of data collection. Name is general enough to easily locate area on a state map.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: LATITUDE
Attribute_Definition:
Latitude coordinate, in decimal-degrees, of sample location. South latitude recorded as negative values.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 42.0845
Range_Domain_Maximum: 42.1939
Attribute_Units_of_Measure: Decimal degrees
Attribute:
Attribute_Label: LONGITUDE
Attribute_Definition:
Longitude coordinate, in decimal degrees, of sample location. West longitude is recorded as negative values.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -70.4090
Range_Domain_Maximum: -70.2264
Attribute_Units_of_Measure: Decimal degrees
Attribute:
Attribute_Label: DEPTH_M
Attribute_Definition:
Measured depth, in meters, of water overlying sediment at sample time. Depth value is not corrected for tides.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 20
Range_Domain_Maximum: 66
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: T_DEPTH
Attribute_Definition:
Top depth of sample, in centimeters, below the sediment-water interface.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: B_DEPTH
Attribute_Definition:
Bottom depth of sample, in centimeters, below the sediment-water interface.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 2
Attribute_Units_of_Measure: centimeters
Attribute:
Attribute_Label: DEVICE
Attribute_Definition: Device used to collect the sample.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Mini Seaboss w/ 0.1 sq m Van Veen grab
Enumerated_Domain_Value_Definition:
sample collected with the SEABOSS system that uses the 0.1 square meter Van Veen grab.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: MONTH_COLL
Attribute_Definition: Calendar month sample collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 8
Range_Domain_Maximum: 8
Attribute:
Attribute_Label: DAY_COLL
Attribute_Definition: Calendar day sample collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 22
Range_Domain_Maximum: 23
Attribute:
Attribute_Label: YEAR_COLL
Attribute_Definition: Calendar year sample collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2017
Range_Domain_Maximum: 2017
Attribute:
Attribute_Label: MONTH_ANAL
Attribute_Definition: Calendar month sample completed analysis.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 11
Range_Domain_Maximum: 11
Attribute:
Attribute_Label: DAY_ANAL
Attribute_Definition: Calendar day sample completed analysis.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 2
Attribute:
Attribute_Label: YEAR_ANAL
Attribute_Definition: Calendar year sample completed analysis.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2017
Range_Domain_Maximum: 2017
Attribute:
Attribute_Label: WEIGHT
Attribute_Definition: Weight of dry sample in grams.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 77.435763
Range_Domain_Maximum: 209.663765
Attribute_Units_of_Measure: grams
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 larger).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 10.4
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: 18.94
Range_Domain_Maximum: 99.97
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: 0.04
Range_Domain_Maximum: 65.48
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; less than 8 phi).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 24.87
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: CLASSIFICATION
Attribute_Definition:
Sediment description based on rigorous definition usually Shepard (1954) as modified by Schlee and Webster (1967), Schlee (1973), and Poppe and others (2014). These values represent all the possible values as defined in the USGS East Coast Sediment Texture Database data dictionary, and do not necessarily reflect the values present in this dataset.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: GRAVEL
Enumerated_Domain_Value_Definition: gravel equal to or greater than 50 percent
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:
gravel 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: SAND
Enumerated_Domain_Value_Definition: sand equal to or greater than 75 percent
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:
sand less than 75 percent and equal to or greater than 50 percent, silt greater than clay, and clay less than 20 percent
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:
sand less than 75 percent and equal to or greater than 50 percent, clay greater than silt, and silt less than 20 percent
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: silt equal to or greater than 75 percent
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:
silt less than 75 percent and equal to or greater than 50 percent, sand greater than clay, and clay less than 20 percent
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: CLAYEY SILT
Enumerated_Domain_Value_Definition:
silt less than 75 percent and equal to or greater than 50 percent, clay greater than sand, and sand less than 20 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: clay equal to or greater than 75 percent
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SANDY CLAY
Enumerated_Domain_Value_Definition:
clay less than 75 percent and equal to or greater than 50 percent, sand greater than silt, and silt less than 20 percent
Enumerated_Domain_Value_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SILTY CLAY
Enumerated_Domain_Value_Definition:
clay less than 75 percent and equal to or greater than 50 percent, silt greater than sand, and sand less than 20 percent
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: clay, sand, and silt greater than 20 percent each
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: 0.45
Range_Domain_Maximum: 6.83
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: 0.36
Range_Domain_Maximum: 6.08
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.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.25
Range_Domain_Maximum: 2.67
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.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.51
Range_Domain_Maximum: 2.08
Attribute_Units_of_Measure: unitless
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: KURTOSIS
Attribute_Definition:
Kurtosis (degree of curvature near the mode) of the grain size distribution.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -1.44
Range_Domain_Maximum: 104.61
Attribute_Units_of_Measure: unitless
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: MODE1CLASS
Attribute_Definition:
First mode (particle size that occurs the most number of times) in phi units. This calculation is no longer made in the lab, but attribute value is maintained to be consistent with older datasets.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string. Blank
Attribute:
Attribute_Label: MODE1FREQ
Attribute_Definition:
Modal strength of the first mode in percent. This calculation is no longer made in the lab, but attribute value is maintained to be consistent with older datasets.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string. Blank
Attribute:
Attribute_Label: MODE2CLASS
Attribute_Definition:
Second mode in phi units. This calculation is no longer made in the lab, but attribute value is maintained to be consistent with older datasets.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string. Blank
Attribute:
Attribute_Label: MODE2FREQ
Attribute_Definition:
Modal strength of the second mode in percent. This calculation is no longer made in the lab, but attribute value is maintained to be consistent with older datasets.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string. Blank
Attribute:
Attribute_Label: MODE3CLASS
Attribute_Definition:
Third mode in phi units. This calculation is no longer made in the lab, but attribute value is maintained to be consistent with older datasets.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string. Blank
Attribute:
Attribute_Label: MODE3FREQ
Attribute_Definition:
Modal strength of the third mode in percent. This calculation is no longer made in the lab, but attribute value is maintained to be consistent with older datasets.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string. Blank
Attribute:
Attribute_Label: NMODES
Attribute_Definition:
Number of modes. This calculation is no longer made in the lab, but attribute value is maintained to be consistent with older datasets.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string. Blank
Attribute:
Attribute_Label: PHIM5
Attribute_Definition:
Weight percent of the sample in the -5 phi fraction and coarser (nominal diameter of particles greater than or equal to 32mm); very coarse pebbles to cobbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIM4
Attribute_Definition:
Weight percent of the sample in the -4 phi fraction (nominal diameter of particles greater than or equal to 16mm, but less than 32mm); coarse pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIM3
Attribute_Definition:
Weight percent of the sample in the -3 phi fraction (nominal diameter of particles greater than or equal to 8mm, but less than 16mm); medium pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIM2
Attribute_Definition:
Weight percent of the sample in the -2 phi fraction (nominal diameter of particles greater than or equal to 4mm, but less than 8mm); fine pebbles.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 7.00
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHIM1
Attribute_Definition:
Weight percent of the sample in the -1 phi fraction (nominal diameter of particles greater than or equal to2mm, but less than 4mm); very fine pebbles (granules).
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 3.93
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_0
Attribute_Definition:
Weight percent of the sample in the 0 phi fraction (nominal diameter of particles greater than or equal to 1mm, but less than 2mm); very coarse 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: 18.24
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_1
Attribute_Definition:
Weight percent of the sample in the 1 phi fraction (nominal diameter of particles greater than or equal to 0.5mm, but less than 1mm); coarse sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.05
Range_Domain_Maximum: 54.56
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_2
Attribute_Definition:
Weight percent of the sample in the 2 phi fraction (nominal diameter of particles greater than or equal to 0.25mm, but less than 0.5mm); medium sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.72
Range_Domain_Maximum: 87.01
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_3
Attribute_Definition:
Weight percent of the sample in the 3 phi fraction (nominal diameter of particles greater than or equal to 0.125mm, but less than 0.25mm); fine sand.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.3
Range_Domain_Maximum: 84.54
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_4
Attribute_Definition:
Weight percent of the sample in the 4 phi fraction (nominal diameter of particles greater than or equal to 0.0625mm, but less than 0.125mm); very 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: 40.64
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_5
Attribute_Definition:
Weight percent of the sample in the 5 phi fraction (nominal diameter of particles greater than or equal to 0.031mm, but less than 0.0625mm); coarse silt.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 36.45
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_6
Attribute_Definition:
Weight percent of the sample in the 6 phi fraction (nominal diameter of particles greater than or equal to 0.016mm, but less than 0.031mm); 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: 14.99
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_7
Attribute_Definition:
Weight percent of the sample in the 7 phi fraction (nominal diameter of particles greater than or equal to 0.008mm, but less than 0.016mm); 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: 21.2
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_8
Attribute_Definition:
Weight percent of the sample in the 8 phi fraction (nominal diameter of particles greater than or equal to 0.004mm, but less than 0.008mm); 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: 23.66
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_9
Attribute_Definition:
Weight percent of the sample in the 9 phi fraction (nominal diameter of particles greater than or equal to 0.002mm, but less than 0.004mm); coarse clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 17.33
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_10
Attribute_Definition:
Weight percent of the sample in the 10 phi fraction (nominal diameter of particles greater than or equal to 0.001mm, but less than 0.002mm); medium clay.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 7.53
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: PHI_11
Attribute_Definition:
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:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0.75
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: ANALYST
Attribute_Definition:
Name (usually first initial and last name) of person who performed the grain size or physical properties analysis. In this case, ARP stands for Allison Paquette
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: ANAL_COMM
Attribute_Definition:
Further information about sediment analysis. No further information was analyzed or additional information provided. The field is maintained to be consistent with other datasets.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string. Blank.
Attribute:
Attribute_Label: LITHOLOGY
Attribute_Definition:
General lithologic description of sample. This field is not always filled in, so will have blanks.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: COMMENTS
Attribute_Definition:
Comments on sample collection or lithology. This field is not always filled in, so will have blanks.
Attribute_Definition_Source:
modified from USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Overview_Description:
Entity_and_Attribute_Overview:
These attribute definitions describe each column of information in the Excel spreadsheet. The first row of the spreadsheet is the column heading. The CSV file has the same information and the column definitions are the same. When converted to a shapefile, two additional columns are created by the software: FID and Shape. The FID is a unique number automatically assigned to each record within the file. The Shape field contains the feature geometry of each record in the shapefile format. Additionally, the attribute ANALYSIS_ID was truncated to ANALYSIS_I when converted to a shapefile due to a 10 character attribute name limit. The attribute CLASSIFICATION was truncated to CLASSIFICA when converted to a shapefile for the same reason.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Page C. Valentine
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x2239
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: pvalentine@usgs.gov
Resource_Description:
2017-043-FA_sedsamples.zip contains the sediment sample analysis data in three formats - an Excel file (v-FA_sedsamps.xlsx), a CSV file (2017-043-FA_sedsamps.csv), and a shapefile (2017-043-FA_sedsamps.shp) and additional files that make up a shapefile. In addition to the sediment analysis files, the zip file contains the browse graphic (2017-043-FA_sedsamps_browse.jpg) and FGDC CSDGM metadata in TXT, XML, and HTML formats.
Distribution_Liability:
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: XLSX
Format_Version_Number: Excel 2013
Format_Information_Content:
The zip file contains the sediment sample analysis in XLSX, CSV and shapefile formats, along with the FGDC CSDGM metadata.
Transfer_Size: 1
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is to download the data in a zip file. The second and third links are to the landing page of the data. Although the last two links go to the same place, one is the DOI designation of the publication.
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Version_Number: exported from Excel 2013
Format_Information_Content:
The zip file contains the sediment sample analysis in XLSX, CSV and shapefile formats, along with the FGDC CSDGM metadata.
Transfer_Size: 1
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is to download the data in a zip file. The second and third links are to the landing page of the data. Although the last two links go to the same place, one is the DOI designation of the publication.
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Format_Version_Number: ArcGIS 10.3.1
Format_Information_Content:
The zip file contains the sediment sample analysis in XLSX, CSV and shapefile formats, along with the FGDC CSDGM metadata.
Transfer_Size: 1
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is to download the data in a zip file. The second and third links are to the landing page of the data. Although the last two links go to the same place, one is the DOI designation of the publication.
Fees: none
Technical_Prerequisites:
The zip file contains data in XLSX, CSV, and Esri shapefile formats. The user must have software capable of uncompressing the zip file and reading the data formats.
Metadata_Reference_Information:
Metadata_Date: 20240318
Metadata_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
Address: 384 Woods Hole Rd.
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: whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318)
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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