Point shapefile of quadrangle 6 station locations in Stellwagen Bank National Marine Sanctuary offshore of Boston, Massachusetts where video, photographs and sediment samples were collected by the U.S. Geological Survey from 1993-2004 - includes sediment sample analyses and interpreted geologic substrate (Geographic, NAD 83)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Page C. Valentine
Publication_Date: 2015
Title:
Point shapefile of quadrangle 6 station locations in Stellwagen Bank National Marine Sanctuary offshore of Boston, Massachusetts where video, photographs and sediment samples were collected by the U.S. Geological Survey from 1993-2004 - includes sediment sample analyses and interpreted geologic substrate (Geographic, NAD 83)
Edition: 1
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Scientific Investigations Map
Issue_Identification: 3341
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/10.3133/sim3341
Online_Linkage: https://pubs.er.usgs.gov/publication/sim3341
Larger_Work_Citation:
Citation_Information:
Originator: Page C. Valentine
Originator: Leslie B. Gallea
Publication_Date: 2015
Title:
Seabed maps showing topography, ruggedness, backscatter intensity, sediment mobility, and the distribution of geologic substrates in quadrangle 6 of the Stellwagen Bank National Marine Sanctuary region offshore of Boston, Massachusetts
Edition: 1.0
Series_Information:
Series_Name: Scientific Investigations Map
Issue_Identification: 3341
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.3133/sim3341
Online_Linkage: https://pubs.er.usgs.gov/publication/sim3341
Description:
Abstract:
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration's National Marine Sanctuary Program, has conducted seabed mapping and related research in the Stellwagen Bank National Marine Sanctuary region since 1993. The area is approximately 3,700 square kilometers (km2) and is subdivided into 18 quadrangles. Seven maps, at a scale of 1:25,000, of quadrangle 6 (211 km2) depict seabed topography, backscatter, ruggedness, geology, substrate mobility, mud content, and areas dominated by fine-grained or coarse-grained sand. Interpretations of bathymetric and seabed backscatter imagery, photographs, video, and grain-size analyses were used to create the geology-based maps. In all, data from 420 stations were analyzed, including sediment samples from 325 locations. The seabed geology map shows the distribution of 10 substrate types ranging from boulder ridges to immobile, muddy sand to mobile, rippled sand. Substrate types are defined on the basis of sediment grain-size composition, surficial morphology, sediment layering, and the mobility or immobility of substrate surfaces. This map series is intended to portray the major geological elements (substrates, features, processes) of environments within quadrangle 6. Additionally, these maps will be the basis for the study of the ecological requirements of invertebrate and vertebrate species that utilize these substrates and guide seabed management in the region.
Purpose:
This shapefile contains quadrangle 6 station locations, interpreted geologic substrate at each location, and description of sampling type (sediment sample, video, photograph). Station locations that have sediment samples include the sediment analyses data.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19930420
Ending_Date: 20040622
Currentness_Reference:
Ground condition of data acquired at stations. However, the currentness reference for the geologic substrate attributes is publication date - 2015.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.222210
East_Bounding_Coordinate: -70.033220
North_Bounding_Coordinate: 42.321730
South_Bounding_Coordinate: 42.203170
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:d5a4fb7e-05d8-4c26-9e03-f85acdfc25ae
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: Esri shapefile
Theme_Keyword: Excel spreadsheet
Theme_Keyword: seabed geology
Theme_Keyword: substrate geology
Theme_Keyword: Scientific Investigations Map 3341
Theme_Keyword: point shapefile
Theme_Keyword: geologic substrates
Theme_Keyword: video stations
Theme_Keyword: sediment samples
Theme_Keyword: photo stations
Theme_Keyword: sediment sample locations
Theme_Keyword: sediment analysis
Theme_Keyword: grain size
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme_Keyword: environment
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: grain-size analysis
Theme_Keyword: navigational data
Theme_Keyword: geospatial datasets
Theme_Keyword: sea-floor characteristics
Theme_Keyword: marine geology
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Stellwagen Bank
Place_Keyword: Stellwagen Bank National Marine Sanctuary
Place_Keyword: Massachusetts
Place_Keyword: Boston, Massachusetts
Place_Keyword: Massachusetts Bay
Place_Keyword: U.S. east coast
Place_Keyword: United States
Place_Keyword: North America
Place_Keyword: Atlantic Ocean
Access_Constraints: None
Use_Constraints: None.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Page C. Valentine
Contact_Organization: U.S. Geological Survey
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
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: http://pubs.usgs.gov/sim/3341/data/SIM3341_stations.jpg
Browse_Graphic_File_Description:
Thumbnail image showing the station locations used in the geologic interpretation of the sea floor in quadrangle 6 of Stellwagen National Marine Sanctuary.
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Native_Data_Set_Environment:
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095
Cross_Reference:
Citation_Information:
Originator: P. Valentine
Originator: D. Blackwood
Originator: K. Parolski
Publication_Date: 2000
Title: Seabed observation and sampling system
Edition: 1.0
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: http://pubs.usgs.gov/fs/fs142-00/
Cross_Reference:
Citation_Information:
Originator: L.J. Poppe
Originator: S.J. Williams
Originator: V.F. Paskevich
Publication_Date: 2005
Title:
U.S. Geological Survey east-coast sediment analysis: Procedures, database, and GIS data
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1001
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2005/1001/
Cross_Reference:
Citation_Information:
Originator: D.S. Blackwood
Originator: K.F. Parolski
Publication_Date: 2001
Title: Seabed observation and sampling system
Edition: 1.0
Series_Information:
Series_Name: Sea Technology
Issue_Identification: v. 42, no. 2, p.39-43
Data_Quality_Information:
Logical_Consistency_Report: All of the sediment samples were processed in the same lab.
Completeness_Report:
All available grain-size data from quadrangle 6 in Stellwagen Bank National Marine Sanctuary region collected between 1993 and 2004 are included in this dataset. All stations used to derive the geologic substrate interpretation of quadrangle 6 are included in this dataset. There are 17 stations that indicate no video, photographs, or sediment sample were acquired. However, the comments attribute explains why these stations are included. Instances occurred where the grab sampler could not obtain a viable sample for complete sediment analysis, but the presence of cobble(s) in the sampler did give insight as to the geologic substrate. One station falling within quadrangle 6 was omitted (station 1090.1) due to the fact that it provided no relevant information on the seabed at the site.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
These data were navigated with a differential global position system (DGPS); they are accurate to +/- 10 meters horizontally. During deployment, the camera system hangs directly below the side of the ship, and the recorded navigation data closely approximates the position of the camera system near the seabed. The ship is oriented so that wind and waves will not cause it to drift over the conducting cable attached to the SEABed Observation and Sampling System (SEABOSS).
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Depth was acquired using the ship fathometer until 1998. After 1998 depth was acquired using the depth sensor on the SEABOSS. Depths are accurate to +/- 1 meter.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unknown
Title: SEABOSS photographs and video of the sea floor
Type_of_Source_Media: film and digital photos
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1999
Ending_Date: 2004
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: SEABOSS
Source_Contribution:
The SEABed Observation and Sampling System (SEABOSS) was designed by the U.S. Geological Survey (USGS) for rapid and effective collection of seabed images and sediment samples in coastal regions. The observations from video and still cameras and the sediment data are used to explore the nature of the seafloor and, in conjunction with high-resolution geophysical data, to make interpretive maps of sedimentary environments and validate the acoustic remote sensing data. The SEABOSS is a simple system that can be deployed from both small and large surface vessels and operates in water depths up to 200 m. It incorporates two video cameras, a still camera, a depth sensor, and a modified Van Veen sediment sampler. The elements of the SEABOSS system used on Stellwagen Bank are housed within a stainless steel framework that measures 1.2 x 1.2 meters and weighs approximately136 kilograms overall. The frame has a stabilizer fin that orients the system as it drifts over the seabed. The height of the camera above the seabed (76 cm; 30 in) initially was determined by viewing an object hanging from the SEABOSS below the video camera; when the object touched the seabed, the camera height was appropriate for still photography. Later in the project, the camera height was determined by viewing a pattern of laser beams on the seabed. Two parallel lasers are set 20 cm apart on the SEABOSS frame and project onto the seabed for scale measurements. All of the system's elements are powered from the surface vessel through a conducting cable. Video displays include station number, water depth (from the depth sensor), and date, time, and geographic position (provided by a shipboard navigation system). During deployment, the camera system hangs directly below the side of the ship, and the recorded navigation data closely approximates the position of the camera system near the seabed. The ship is oriented so that wind and waves will not cause it to drift over the conducting cable attached to the SEABOSS. The winch operator uses a video feed from the system to maintain the camera at the proper height above the seabed and to avoid obstacles. The scientist uses the video to decide when to take a grab sample of seabed sediment.
Process_Step:
Process_Description:
A subset of the published sediment sample analyses of Stellwagen Bank National Marine Sanctuary was separated based on station locations falling within quadrangle 6. Additionally, stations where either video or bottom photographs that fell within quadrangle 6 were also extracted. These two datasets were combined into a single Excel 2003 spreadsheet. Additional columns of information were added to reflect whether or not the location marks a sediment sample location, a station that collected video, or a station that collected bottom photographs. Columns were also added to reflect the interpreted geologic substrate at the station location. Typically the SEABOSS system would be deployed to the sea floor and the ship would drift while video and photos were recorded. When sediment samples were collected, they were acquired at the end of the drift. Sediment sample locations are given as the position of the actual sediment sample. For stations where just video and/or photographs were acquired, the location marks the end of the station drift. This process step and all subsequent process steps were performed by the same person - VeeAnn A. Cross.
Process_Date: 2012
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
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: vatnipp@usgs.gov
Process_Step:
Process_Description:
The Excel spreadsheet was edited so that the column headers would be compatible with Esri shapefile attribute headings. Additionally, numeric fields with null values (blanks) were set to -9999. This will prevent blank cell values from being converted to zeros when the data are converted to a shapefile. With those modifications complete, the Excel spreadsheet was converted to a comma-delimited text file. The original spreadsheet (not edited for use with ArcMap) is included in the zip file.
Process_Date: 2012
Process_Step:
Process_Description:
The comma-delimited text file was added to ArcMap 9.3.1 as an event theme using Tools - Add XY Data. The X Field was set to longitude and the Y Field was set to latitude. The coordinate system was defined as a geographic coordinate system, NAD83. The event theme was then converted to a shapefile by right mouse clicking the event theme and exporting to a shapefile with a geographic, NAD83 coordinate system.
Process_Date: 2012
Process_Step:
Process_Description: USGS Thesaurus keywords added to the keyword section.
Process_Date: 20180720
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: Fixed a broken link and added the DOI link.
Process_Date: 20190130
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: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 420
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: quad6_stations_geology
Entity_Type_Definition:
Station locations of bottom video, bottom photographs, and sediment samples.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: SBNMS_id
Attribute_Definition:
USGS SBNMS station number assigned in the field. In some instances, multiple transects of photo and (or) video collection were conducted at approximately the same site. These instances are noted by a decimal number.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Although the field is a numeric field, the decimal portion of the number does not represent a fraction of a station but rather another approximate occupation of the same station. In other published versions of the data the multiple sites were annotated by a letter after the station number such that instead of 3131.1, it would be 3131a.
Attribute:
Attribute_Label: substr_sym
Attribute_Definition:
Substrate unit symbol abbreviation corresponding to the interpreted geologic substrate that falls under the sample location.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A1
Enumerated_Domain_Value_Definition: Abbreviated symbol for A1 r_cgS
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A2
Enumerated_Domain_Value_Definition: Abbreviated symbol for A2 i_cgS
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: B
Enumerated_Domain_Value_Definition: Abbreviated symbol for B r_cgS / i_cbG
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: C
Enumerated_Domain_Value_Definition: Abbreviated symbol for C i_cbG
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: D1
Enumerated_Domain_Value_Definition: Abbreviated symbol for D1 i_cgS / pbcG
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: D2
Enumerated_Domain_Value_Definition: Abbreviated symbol for D2 i_mcgS / pcbG
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: E
Enumerated_Domain_Value_Definition: Abbreviated symbol for E i_cgS
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: F
Enumerated_Domain_Value_Definition: Abbreviated symbol for F i_cgS / pbcG
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: G1
Enumerated_Domain_Value_Definition: Abbreviated symbol for G1 i_mfgS
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: G2
Enumerated_Domain_Value_Definition: Abbreviated symbol for G2 i_mfgS
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute:
Attribute_Label: substrate
Attribute_Definition:
Geologic substrate unit name that designates a unique substrate area on the seabed of quadrangle 6.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A1 r_cgS
Enumerated_Domain_Value_Definition:
Rippled, coarse-grained sand. Substrate A1 is a mobile sand deposit on the upper flank of Stellwagen Bank. Depth range is 30 to 56 m. Mean weight percents per grain-size category: mud <1; sand 90 (fgS, 3; cgS, 88); gravel 9 (G1, 8; G2, 1). Substrate A1 is equivalent to the mobile portion of adjacent substrate B; and it is similar to adjacent immobile substrate A2 which lies at deeper depths (53 to 77 m) on the lower flank of Stellwagen Bank and contains more fine-grained sand (11 weight percent).
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A2 i_cgS
Enumerated_Domain_Value_Definition:
Immobile, coarse-grained sand. Substrate A2 is an immobile sand deposit on the lower flank of Stellwagen Bank. Depth range is 53 to 77 m. Mean weight percents per grain-size category: mud 1; sand 83 (fgS, 11; cgS, 72); gravel, 16 (G1, 11; G2, 5). Substrate A2 is similar to adjacent mobile substrate A1 which lies at shallower depths (30 to 56 m) and contains less fine-grained sand (3 weight percent). It contains less mud and fine-grained sand than substrate E.
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: B r_cgS / i_cbG
Enumerated_Domain_Value_Definition:
Rippled, coarse-grained sand; partial veneer on immobile, cobble, boulder gravel. Substrate B is a layered substrate of mobile sand overlying immobile gravel on the shallow flank of Stellwagen Bank. Depth range is 36 to 58 m. Mean weight percents per grain-size category: mud, <1; sand, 92 (fgS, 5; cgS, 86); gravel, 8 (G1, 7; G2, 1). Cobbles and boulders are identified on the basis of video and photographic imagery. Boulder ridges (substrate C) are present. The mobile sand layer of substrate B is equivalent to adjacent mobile substrate A1.
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: C i_cbG
Enumerated_Domain_Value_Definition:
Immobile, cobble, boulder gravel. Substrate C is immobile gravel that forms topographic ridges where cobbles and boulders are piled upon one another and are separated by voids. It is identified on the basis of video and photographic images of mapped topographic ridges. It is present on the flank of Stellwagen Bank where it is associated with substrate B (36 to 58 m) and substrate D1 (50 to 83 m), and on the tops of North, East, and Middle Ninety Banks where it is associated with substrate D2 (87 to 105 m). It is equivalent to boulder ridges <1 m and >=1m on Maps A, E, F, and G.
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: D1 i_cgS / pcbG
Enumerated_Domain_Value_Definition:
Immobile, coarse-grained sand; partial veneer on pebble, cobble, boulder gravel. Substrate D1 is a layered substrate of immobile sand overlying immobile gravel on the flank of Stellwagen Bank. Depth range is 50 to 83 m. Mean weight percents per grain-size category: mud, 4; sand, 50 (fgS, 16; cgS, 34); gravel, 45 (G1, 11; G2, 34). Pebbles, cobbles, and boulders are identified on the basis of video and photographic imagery. Boulder ridges (substrate C) are present. Substrate D1 is similar to substrate D2 which lies at deeper depths (87 to 105 m) on the tops of North, East, and Middle Ninety Banks and has higher mud content (12 weight percent).
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: D2 i_mcgS / pcbG
Enumerated_Domain_Value_Definition:
Immobile, muddy, coarse-grained sand; partial veneer on pebble, cobble, boulder gravel. Substrate D2 is a layered substrate of immobile sand overlying immobile gravel on the tops of North, East, and Middle Ninety Banks. Depth range is 87 to 105 m. Mean weight percents per grain-size category: mud, 12; sand, 76 (fgS, 22; cgS, 55); gravel, 12 (G1, 8; G2, 4). Pebbles, cobbles, and boulders are identified on the basis of video and photographic imagery. Boulder ridges (substrate C) are present. Substrate D2 is similar to substrate D1 which lies at shallower depths (50 to 83 m) on the flank of Stellwagen Bank and has lower mud content (4 weight percent).
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: E i_cgS
Enumerated_Domain_Value_Definition:
Immobile, coarse-grained sand. Substrate E is an immobile sand deposit on the lower flank of Stellwagen Bank. Depth range is 66 to 122 m. Mean weight percents per grain-size category: mud 4; sand, 82 (fgS, 18; cgS, 64); gravel, 14(G1, 9; G2, 5). Boulder ridges are absent. Substrate E is similar in mud content to substrate D1 and contains more mud and fine-grained sand than substrate A2.
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: F i_cgS / pcbG
Enumerated_Domain_Value_Definition:
Immobile, coarse-grained sand; partial veneer on pebble, cobble, boulder gravel. Substrate F is a layered substrate of immobile sand overlying immobile gravel on the flanks of the Ninety Meter Banks. Depth range is 90 to 148 m. Mean weight percents per grain-size category: mud, 9; sand, 69 (fgS, 25; cgS, 44); gravel, 22 (G1, 13; G2, 9). Pebbles, cobbles, and boulders are identified on the basis of video and photographic imagery. Boulder ridges are absent. Substrate F is similar to substrates D1 and D2, except that F lies at deeper depths, and the partial veneer of coarse grained sand on the gravel is more extensive.
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: G1 i_mfgS
Enumerated_Domain_Value_Definition:
Immobile, muddy, fine-grained sand. Substrate G1 is an immobile muddy sand deposit in valleys between Stellwagen Bank and the Ninety Meter Banks. Depth range is 85 to 171 m. Mean weight percents per grain-size category: mud, 10; sand, 88 (fgS, 78; cgS, 10); gravel, 1 (G1, 1; G2, 1). Substrate G1 is similar to substrate G2 which lies at deeper depths (125 to 185 m) and has higher 4 phi sand (58 weight percent) and higher mud content (23 weight percent).
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: G2 i_mfgS
Enumerated_Domain_Value_Definition:
Immobile, muddy, fine-grained sand. Substrate G2 is an immobile muddy sand deposit in deep parts of valleys lying between the Ninety Meter Banks. Depth range is 125 to 185 m. Mean weight percents per grain-size category: mud, 23; sand, 77 (fgs, 77; cgS, 1); gravel, 0. Substrate G2 has the highest mud content of all substrates in quadrangle 6.
Enumerated_Domain_Value_Definition_Source: Page Valentine, U.S. Geological Survey
Attribute:
Attribute_Label: photos
Attribute_Definition:
The value of this attribute indicates if seabed photographs were taken at the station. True indicates that photo(s) were taken, false indicates no photo(s) were taken.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Boolean character set. True indicates the station has seabed photo(s), false indicates no photo(s).
Attribute:
Attribute_Label: video
Attribute_Definition:
The value of this attribute indicates if seabed video was recorded at the station. True indicates that photo(s) were taken, false indicates no video was taken.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Boolean character set. True indicates the station has video imagery of the seabed, false indicates no video.
Attribute:
Attribute_Label: sample
Attribute_Definition:
The value of this attribute indicates if seabed video was recorded at the station. True indicates a sediment sample was taken, false indicates no sediment sample was taken.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Boolean character set. True indicates the station has a sediment sample, false indicates no sediment sample.
Attribute:
Attribute_Label: labno
Attribute_Definition:
Sediment database identification number for analyzed sediment samples. The unique identifier consists of two characters and three numerals assigned during lab analysis. A blank value is a NODATA value indicating where samples were not physically collected.
Attribute_Definition_Source: U.S. Geological Survey.
Attribute_Domain_Values:
Unrepresentable_Domain: Character set of width 5.
Attribute:
Attribute_Label: longitude
Attribute_Definition:
Longitude coordinate of the station location. In the case of sediment samples, this is the longitude of the sediment sample. For other station locations, this location marks the approximate end of the occupied station.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -70.22221
Range_Domain_Maximum: -70.03322
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: latitude
Attribute_Definition:
Latitude coordinate of the station location. In the case of sediment samples, this is the latitude of the sediment sample. For other station locations, this location marks the approximate end of the occupied station.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 42.20317
Range_Domain_Maximum: 42.32173
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: cruise_id
Attribute_Definition:
U.S. Geological Survey Woods Hole Coastal and Marine Science Center cruise identifier. This is a combination of vessel name codes and field activity number. For example: FERL9409 indicates the vessel used was the Ferrel; 9409 refers to the cruise number where the first two digits are the year and the remaining numbers indicate the field activity of that year. 9409 indicates 1994, the ninth field activity of that year.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ANDR95015
Enumerated_Domain_Value_Definition: vessel Anderson, 1995, field activity 15.
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1995-015-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ANDR95036
Enumerated_Domain_Value_Definition: vessel Anderson, 1995, field activity 36
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1995-036-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ARGO94014
Enumerated_Domain_Value_Definition: vessel Argo Maine, 1994, field activity 14
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1994-014-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: CAND98022
Enumerated_Domain_Value_Definition: vessel Christopher Andrew, 1998, field activity 22
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1998-022-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: CONN03014
Enumerated_Domain_Value_Definition: vessel Connecticut, 2003, field activity 14
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=2003-014-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: DIAN96025
Enumerated_Domain_Value_Definition: vessel Diane G, 1996, field activity 25
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1996-025-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: DLWR93006
Enumerated_Domain_Value_Definition: vessel Delaware II, 1993, field activity 6
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1993-006-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: DLWR93030
Enumerated_Domain_Value_Definition: vessel Delaware II, 1993, field activity 30
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1993-030-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: DLWR99011
Enumerated_Domain_Value_Definition: vessel Delaware II, 1999, field activity 11
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1999-011-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FERL94004
Enumerated_Domain_Value_Definition: vessel Ferrel, 1994, field activity 4
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1994-004-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FERL95012
Enumerated_Domain_Value_Definition: vessel Ferrel, 1995, field activity 12
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1995-012-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FERL98029
Enumerated_Domain_Value_Definition: vessel Ferrel, 1998, field activity 29
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1998-029-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FSTR04010
Enumerated_Domain_Value_Definition: vessel Nancy Foster, 2004, field activity 10
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=2004-010-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ISBL96037
Enumerated_Domain_Value_Definition: vessel Isabel S, 1996, field activity 37
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1996-037-FA
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ISBL98017
Enumerated_Domain_Value_Definition: vessel Isabel S, 1998, field activity 17
Enumerated_Domain_Value_Definition_Source: http://cmgds.marine.usgs.gov/fan_info.php?fa=1998-017-FA
Attribute:
Attribute_Label: depth_m
Attribute_Definition:
Water depth of station (in meters), measured at some location by the ship's fathometer and at other locations by the SEABOSS depth sensor.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 30
Range_Domain_Maximum: 185
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: year
Attribute_Definition: Year the station was occupied.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1993
Range_Domain_Maximum: 2004
Attribute_Units_of_Measure: year
Attribute:
Attribute_Label: jday
Attribute_Definition:
Julian day and time the station was occupied. Time is GMT. The format is Julian Day:HH:MM:SS.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Character set specifying day and time in the format Julian day:HH:MM:SS.
Attribute:
Attribute_Label: quad
Attribute_Definition:
Quadrangle number in Stellwagen Bank National Marine Sanctuary region that the station occupied. In the case of drift stations, this number represents where the quadrangle occupied at the end of the station.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition: Quadrangle 6 of Stellwagen Bank National Marine Sanctuary
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: device
Attribute_Definition:
The sampler used to acquire the sediment sample - the USGS modified Van Veen (VV) grab sampler. A blank value is a NODATA value indicating where samples were not physically collected.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set.
Attribute:
Attribute_Label: t_depth
Attribute_Definition:
Top depth of the sample below sediment-water interface. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: U.S. Geological Survey.
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0
Attribute_Units_of_Measure: cm
Attribute:
Attribute_Label: b_depth
Attribute_Definition:
Bottom depth of the sample below the sediment-water interface. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 2
Attribute_Units_of_Measure: cm
Attribute:
Attribute_Label: weight
Attribute_Definition:
Weight of dry sample in grams. A value of -9999 is a NODATA value entered where samples were not physically collected.
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: grams
Attribute:
Attribute_Label: zsand
Attribute_Definition:
Sand content in percent dry weight. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 14.7
Range_Domain_Maximum: 99.4
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: zgravel
Attribute_Definition:
Gravel content in percent dry weight. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 80.6
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: zclay
Attribute_Definition:
Clay content in percent dry weight. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 18.3
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: zsilt
Attribute_Definition:
Silt content in percent dry weight. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 13.9
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: zmud
Attribute_Definition:
Mud (combined clay and silt) content in percent dry weight. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 29.7
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: median
Attribute_Definition:
Middle point in the grain-size distribution in phi units. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -5.2
Range_Domain_Maximum: 3.6
Attribute_Units_of_Measure: phi
Attribute:
Attribute_Label: mean
Attribute_Definition:
Average value in the grain-size distribution in phi units. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -3.5
Range_Domain_Maximum: 4.6
Attribute_Units_of_Measure: phi
Attribute:
Attribute_Label: stdev
Attribute_Definition:
Standard deviation of the grain-size distribution in phi units. A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.7
Range_Domain_Maximum: 3.7
Attribute_Units_of_Measure: phi
Attribute:
Attribute_Label: phi_11
Attribute_Definition:
Weight percent of the sample in the 11 phi fraction (clay). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 4.2
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_10
Attribute_Definition:
Weight percent of the sample in the 10 phi fraction (clay). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 7.2
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_9
Attribute_Definition:
Weight percent of the sample in the 9 phi fraction (clay). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 7
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_8
Attribute_Definition:
Weight percent of the sample in the 8 phi fraction (very fine silt). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 5.3
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_7
Attribute_Definition:
Weight percent of the sample in the 7 phi fraction (fine silt). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 4.3
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_6
Attribute_Definition:
Weight percent of the sample in the 6 phi fraction (medium silt). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 3.7
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_5
Attribute_Definition:
Weight percent of the sample in the 5 phi fraction (coarse silt). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 3.1
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_4
Attribute_Definition:
Weight percent of the sample in the 4 phi fraction (very fine sand). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 62.8
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_3
Attribute_Definition:
Weight percent of the sample in the 3 phi fraction (fine sand). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 75
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: fg_sand
Attribute_Definition:
Weight percent of the combined 4-phi and 3-phi weight percents (fine-grained sand). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.3
Range_Domain_Maximum: 94.2
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_2
Attribute_Definition:
Weight percent of the sample in the 2 phi fraction (medium sand). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 55.1
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_1
Attribute_Definition:
Weight percent of the sample in the 1 phi fraction (coarse sand). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 67
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: phi_0
Attribute_Definition:
Weight percent of the sample in the 0 phi fraction (very coarse sand). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 56.9
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: cg_sand
Attribute_Definition:
Weight percent of the combined 2-phi, 1-phi and 0-phi weight percents (coarse-grained sand). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 97.5
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: PHIm1
Attribute_Definition:
Weight percent of the sample in the -1 phi fraction (granule). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 18.9
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: PHIm2
Attribute_Definition:
Weight percent of the sample in the -2 phi fraction (pebble). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 22.5
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: G1
Attribute_Definition:
Weight percent of the combined -1-phi and -2-phi weight percents (gravel subclass 1). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 35.6
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: PHIm3
Attribute_Definition:
Weight percent of the sample in the -3 phi fraction (pebble). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 28.7
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: PHIm4
Attribute_Definition:
Weight percent of the sample in the -4 phi fraction (pebble). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 40.7
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: PHIm5
Attribute_Definition:
Weight percent of the sample in the -5 phi fraction (pebble). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 61.8
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: G2
Attribute_Definition:
Weight percent of the combined -3-phi, -4-phi and -5-phi weight percents (gravel subclass 2). A value of -9999 is a NODATA value entered where samples were not physically collected.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 75.3
Attribute_Units_of_Measure: percent
Attribute:
Attribute_Label: substr_nam
Attribute_Definition:
Brief text description corresponding to the interpreted geologic substrate of the seabed that falls at the station location.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set.
Attribute:
Attribute_Label: comment
Attribute_Definition:
Provides addition pertinent information regarding the station. This information can include why a sample was not used in the interpretation.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set.
Overview_Description:
Entity_and_Attribute_Overview:
In the substrate attribute, weight percents described in the domain value definitions may not add to 100 due to rounding of values. Also in the geo_substr attributes, the mean weight percents for the units, sand is divided into two composite grades: fine-grained sand (fgS; 0.062 to <0.25 mm) and coarse-grained sand (cgS; 0.25 to <2mm). Gravel is also divided into two composite grades: Gravel1 (G1; w to <8 mm) and Grave2(Gs; 8 to <64 mm). This G1 and G2 are not to be confused with the geologic substrate units G1 i_mfgS and G2 i_mfgS.

In addition to the shapefile, there is an accompanying Excel spreadsheet (SIM3341_table4.xlsx). The spreadsheet has the original column headings as described in SIM 3341, table 5: http://dx.doi.org/10.3133/sim3341. Additional information regarding abbreviations is at the top of the spreadsheet.

That following information included here as column: column heading: description.

Column A: USGS SBNMS Sta No.: Station number for samples collected during this project in the Stellwagen Bank National Marine Sanctuary region offshore of Boston, Massachusetts

Column B: Substrate unit symbol: Symbol of substrate shown on maps

Column C: Substrate unit name: Combination of substrate unit symbol and abbreviation of substrate descriptive name (see column AV)

Column D: Photos: Collected (TRUE) or did not collect (FALSE) seabed photographs at the station

Column E: Video: Collected (TRUE) or did not collect (FALSE) video imagery at the station

Column F: Sample: Collected (TRUE) or did not collect (FALSE) sediment sample at the station

Column G: USGS-DBID: USGS sediment grain size analysis database identification; n.d., no data

Column H: Longitude west, decimal degrees: Longitude west in decimal degrees

Column I: Latitude north, decimal degrees: Latitude north in decimal degrees

Column J: WHCMSC field activity (cruise) no.: USGS Woods Hole Coastal and Marine Science Center field activity (cruise) number. Example ANDR95036. ANDR is vessel name code (Peter W. Anderson), 95 is last two digits of year, and 036 is the 36th field activity of the year.

Column K: Sample collection water depth, m: Water depth at which sample was taken, in meters

Column L: Sample collection year: Year sediment sample was collected

Column M: Sample collection date, DDD:HH:MM:SS GMT: Date expressed as Julian Day (DDD) and time as HOUR:MINUTES:SECONDS Greenwich Mean Time (GMT) at which sample was collected (GMT same as UTC, Universal Coordinated Time, and ZULU, military time)

Column N: Quad: Quadrangle number in SBNMS region in which sample was collected

Column O: Sampler used: Sediment sample collected by a USGS modified Van Veen (VV) grab sampler http://woodshole.er.usgs.gov/operations/sfmapping/seaboss.htm

Column P: Sediment sample top, cm below seabed surface: Top of sediment sample is the seabed surface (0 cm)

Column Q: Sediment sample bottom, cm below seabed surface: Bottom of sediment sample is 2 cm below the seabed surface

Column R: Dry sediment sample mass, g: Mass of dry sediment used for grain-size analysis in grams

Column S: Sand, wt percent: Weight percent of sand in sample

Column T: Gravel, wt percent: Weight percent of gravel in sample

Column U: Clay, wt percent: Weight percent of clay in sample

Column V: Silt, wt percent: Weight percent of silt in sample

Column W:Mud (clay+silt), wt percent: Weight percent of mud (combined clay and silt) in sample

Column X: Median grain size, phi units: Median grain size of sample in phi units

Column Y: Mean grain size, phi units: Mean grain size of sample in phi units

Column Z: Standard deviation of grain sizes, phi units: Standard deviation of the distribution of phi grain size units in a sample, in phi units

Column AA: 11-phi-size class (clay), wt percent: Weight percent of 11-phi-size sediment in sample

Column AB: 10-phi-size class (clay), wt percent: Weight percent of 10-phi-size sediment in sample

Column AC: 9-phi-size class (clay), wt percent: Weight percent of 9-phi-size sediment in sample

Column AD: 8-phi-size class (very fine silt), wt percent: Weight percent of 8-phi-size sediment in sample

Column AE: 7-phi-size class (fine silt), wt percent: Weight percent of 7-phi-size sediment in sample

Column AF: 6-phi-size class (medium silt), wt percent: Weight percent of 6-phi-size sediment in sample

Column AG: 5-phi-size class (coarse silt), wt percent: Weight percent of 5-phi-size sediment in sample

Column AH: 4-phi-size class (very fine sand), wt percent: Weight percent of 4-phi-size sediment in sample

Column AI: 3-phi-size class (fine sand), wt percent: Weight percent of 3-phi-size sediment in sample

Column AJ: fine-grained sand (fgS) (4 + 3 phi), wt percent: Weight percent of combined 3-phi- and 4-phi-size sediment in sample

Column AK: 2-phi-size class (medium sand), wt percent: Weight percentage of 2-phi-size sediment in sample

Column AL: 1-phi-size class (coarse sand), wt percent: Weight percent of 1-phi-size sediment in sample

Column AM: 0-phi-size class (very coarse sand), wt percent: Weight percent of 0-phi-size sediment in sample

Column AN: coarse-grained sand (cgS) (2 + 1 + 0 phi), wt percent: Weight percent of combined 2-phi-, 1-phi-, and 0-phi-size sediment in sample

Column AO: -1-phi-size class (granule), wt percent: Weight percent of -1-phi-size sediment in sample

Column AP: -2-phi-size class (pebble), wt percent: weight percent of -2-phi-size sediment in sample

Column AQ: Gravel 1 (G1) (-1 + -2 phi), wt percent: G subscript 1 weight percent of combined -1-phi- and -2-phi-size sediment in sample

Column AR: -3-phi-size class (pebble), wt percent: Weight percent of -3-phi-size sediment in sample

Column AS: -4-phi-size class (pebble), wt percent: Weight percent of -4-phi-size sediment in sample

Column AT: -5-phi-size class (pebble), wt percent: Weight percent of -5-phi-size sediment in sample

Column AU: Gravel 2 (G2) (-3 + -4 + -5 phi), wt percent: G subscript 2 weight percent of combined -3-phi-, -4-phi-, and -5-phi-size sediment in sample

Column AV: Substrate unit name translation: Describes the mobility, texture, and layering of the sediment substrate

Column AW: Comment: Explanatory notes for selected stations.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Page C. Valentine
Contact_Organization: U.S. Geological Survey
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
Contact_Voice_Telephone: (508) 548-8700 x2239
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: pvalentine@usgs.gov
Resource_Description:
SIM3341_stations_geology.zip containing SIM3341_stations_geology.shp and the shapefile components as well as FGDC metadata and the browse graphic SIM3341_stations.jpg. An Excel 2010 spreadsheet (SIM3341_table4.xlsx) containing the same information is also included in the zip file. Additionally, the ArcGIS 9.3.1 layer file SIM3341_stations_geology.lyr file is included.
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: Shapefile
Format_Version_Number: ArcGIS 9.3.1
Format_Information_Content:
The WinZip (version 14.0) contains the shapefile, and Excel 2010 spreadsheet of the same information, and associated metadata. An ArcGIS 9.3.1 layer file is also included.
Transfer_Size: 0.3
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Digital_Form:
Digital_Transfer_Information:
Format_Name: XLSX
Format_Version_Number: Excel 2010
Format_Information_Content:
The WinZip (version 14.0) contains the shapefile, and Excel 2010 spreadsheet of the same information, and associated metadata. An ArcGIS 9.3.1 layer file is also included.
Transfer_Size: 0.2
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Fees: None.
Technical_Prerequisites:
These data are available in Environmental Systems Research Institute (Esri) shapefile format. The user must software capable of reading this format. The data are available for download in WinZip format.
Metadata_Reference_Information:
Metadata_Date: 20200908
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey
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: vatnipp@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/sim/sim3341/SIM3341_stations_geologymeta.html>
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