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)
Metadata also available as - [Parseable text] - [XML]
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: Page C. Valentine
- Publication_Date: 2015
- Title:
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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:
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- Series_Name: Scientific Investigations Map
- Issue_Identification: 3341
- Publication_Information:
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- 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://pubs.usgs.gov/sim/3341/SIM3341_stations_geology.zip
- Larger_Work_Citation:
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- Citation_Information:
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- Originator: Page C. Valentine
- Originator: Leslie B. Gallea
- Publication_Date: 2015
- Title:
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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:
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- Series_Name: Scientific Investigations Map
- Issue_Identification: 3341
- Publication_Information:
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- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Online_Linkage: https://dx.doi.org/10.3133/sim3341
- Online_Linkage: https://pubs.usgs.gov/sim/3341/
- Description:
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- Abstract:
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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:
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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:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 19930420
- Ending_Date: 20040622
- Currentness_Reference:
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Ground condition of data acquired at stations. However, the currentness reference for the geologic substrate attributes is publication date - 2015.
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
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- Bounding_Coordinates:
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- 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: 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:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: oceans
- Theme_Keyword: geoscientifInformation
- Theme_Keyword: environment
- Place:
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- 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:
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- Contact_Person_Primary:
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- 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:
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- Browse_Graphic_File_Name: https://pubs.usgs.gov/sim/3341/data/SIM3341_stations.jpg
- Browse_Graphic_File_Description:
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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:
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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:
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Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095
- Cross_Reference:
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- Citation_Information:
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- Originator: P. Valentine
- Originator: D. Blackwood
- Originator: K. Parolski
- Publication_Date: 2000
- Title: Seabed observation and sampling system
- Edition: 1.0
- Series_Information:
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- Series_Name: U.S. Geological Survey Fact Sheet
- Issue_Identification: FS-142-00
- Publication_Information:
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- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Online_Linkage: https://pubs.usgs.gov/fs/fs142-00/
- Cross_Reference:
-
- Citation_Information:
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- Originator: L.J. Poppe
- Originator: S.J. Williams
- Originator: V.F. Paskevich
- Publication_Date: 2005
- Title:
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U.S. Geological Survey east-coast sediment analysis: Procedures, database, and GIS data
- Edition: 1.0
- Series_Information:
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- Series_Name: Open-File Report
- Issue_Identification: 2005-1001
- Publication_Information:
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- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Online_Linkage: https://pubs.usgs.gov/of/2005/1001/
- Cross_Reference:
-
- Citation_Information:
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- Originator: D.S. Blackwood
- Originator: K.F. Parolski
- Publication_Date: 2001
- Title: Seabed observation and sampling system
- Edition: 1.0
- Series_Information:
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- Series_Name: Sea Technology
- Issue_Identification: v. 42, no. 2, p.39-43
- Data_Quality_Information:
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- Logical_Consistency_Report: All of the sediment samples were processed in the same lab.
- Completeness_Report:
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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:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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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:
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- Vertical_Positional_Accuracy_Report:
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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:
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- Source_Information:
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- Source_Citation:
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- Citation_Information:
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- 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:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 1999
- Ending_Date: 2004
- Source_Currentness_Reference: ground condition
- Source_Citation_Abbreviation: SEABOSS
- Source_Contribution:
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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:
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- Process_Description:
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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:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: VeeAnn A. Cross
- Contact_Organization: U.S. Geological Survey
- Contact_Position: Marine Geologist
- Contact_Address:
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- 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:
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- Process_Description:
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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:
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- Process_Description:
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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
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
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- SDTS_Terms_Description:
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- SDTS_Point_and_Vector_Object_Type: Entity point
- Point_and_Vector_Object_Count: 420
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Geographic:
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- Latitude_Resolution: 0.000001
- Longitude_Resolution: 0.000001
- Geographic_Coordinate_Units: Decimal degrees
- Geodetic_Model:
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- 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:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: quad6_stations_geology
- Entity_Type_Definition:
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Station locations of bottom video, bottom photographs, and sediment samples.
- Entity_Type_Definition_Source: U.S. Geological Survey
- Attribute:
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- Attribute_Label: FID
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
-
- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
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- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
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- Attribute_Label: SBNMS_id
- Attribute_Definition:
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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:
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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:
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- Attribute_Label: substr_sym
- Attribute_Definition:
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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:
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- Enumerated_Domain:
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- 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:
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- Enumerated_Domain:
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- 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:
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- 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:
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- 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:
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- 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:
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- 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:
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- Attribute_Label: substrate
- Attribute_Definition:
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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:
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- 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: https://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:
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- 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:
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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:
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- 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:
-
- Network_Address:
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- Network_Resource_Name: https://pubs.usgs.gov/sim/3341/data/SIM3341_stations_geology.zip
- 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:
-
- Network_Address:
-
- Network_Resource_Name: https://pubs.usgs.gov/sim/data/3341/SIM3341_stations_geology.zip
- Fees: None.
- Technical_Prerequisites:
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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:
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- Metadata_Date: 20150903
- Metadata_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- 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
Generated by mp version 2.9.30 on Thu Sep 03 14:42:39 2015