Sea-floor environments in the Hudson Canyon region (polyline shapefile, geographic, WGS 84)

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: David C. Twichell
Publication_Date: 2017
Title:

Sea-floor environments in the Hudson Canyon region (polyline shapefile, geographic, WGS 84)

Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F77H1GSF

Publication_Information:

Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological survey, Coastal and Marine Geology Program

Online_Linkage: https://doi.org/10.5066/F77H1GSF
Online_Linkage:

https://www.sciencebase.gov/catalog/item/58fa5eade4b0b7ea5452564d

Larger_Work_Citation:

Citation_Information:

Originator: Bradford Butman
Originator: William W. Danforth
Originator: David C. Twichell
Originator: Peter A. Rona
Publication_Date: 2017
Title:

Bathymetry, backscatter intensity, and geomorphology of the sea floor of the Hudson Canyon and adjacent slope and rise

Edition: 1.0
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F77H1GSF

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Other_Citation_Details:

Suggested citation: Butman, Bradford, Danforth, W.W., Twichell, D.C., and Rona, P.A., 2017, Bathymetry, backscatter intensity, and geomorphology of the sea floor of the Hudson Canyon and adjacent slope and rise: U.S. Geological Survey data release, https://doi.org/10.5066/F77H1GSF.

Online_Linkage: https://doi.org/10.5066/F77H1GSF

Description:

Abstract:

The Hudson Canyon begins on the outer continental shelf off the east coast of the United States at about 100-meters (m) water depth and extends offshore southeastward across the continental slope and rise. A multibeam survey was carried out in 2002 to map the bathymetry and backscatter intensity of the sea floor of the Hudson Canyon and adjacent slope and rise. The survey covered an area approximately 205 kilometers (km) in the offshore direction, extending from about 500 m to about 4,000 m water depth, and about 110 km in the alongshore direction, centered on the Hudson Canyon. The sea floor was mapped using a SeaBeam Instruments 2112 multibeam echosounder aboard the National Oceanic and Atmospheric Administration (NOAA) ship Ronald H. Brown. Maps derived from the multibeam observations show sea-floor bathymetry and backscatter intensity (a measure of sea floor texture and roughness), geomorphic provinces, and sea-floor environments (Butman and others, 2006). The sea floor was mapped by the U.S. Geological Survey in cooperation with Rutgers University and with support from NOAA.

Purpose:

This shapefile shows sea-floor environments (failed slope, mass-transport deposits, buried mass-transport deposits, sediment waves, eroded strata, and hemipelagic sediments) in the Hudson Canyon region based on backscatter intensity, physiography, and sub-bottom characteristics.

Supplemental_Information:

Maps and interpretations of the multibeam echosounder data from the 2002 multibeam survey of the sea floor of the Hudson Canyon region are published in Butman and others (2006) (see cross reference). This publication includes the previously unpublished digital multibeam data and interpretations with FGDC-compliant metadata (CSDGM format). The data were collected on Woods Hole Coastal and Marine Science Center field activity 2002-050-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2002-050-FA). Other datasets from the 2002 survey may be found in Butman and others (2017) (see larger work citation). Andrews and others (2013) (see cross reference) present a bathymetric terrain model for the Atlantic margin which includes the Hudson Canyon region.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2006

Currentness_Reference:

publication date of original release of maps (with no digital data)

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -72.487768
East_Bounding_Coordinate: -70.081818
North_Bounding_Coordinate: 39.846475
South_Bounding_Coordinate: 37.622188

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:58fa5eade4b0b7ea5452564d

Theme:

Theme_Keyword_Thesaurus: none
Theme_Keyword: geologic facies
Theme_Keyword: polyline shapefile
Theme_Keyword: failed slope
Theme_Keyword: hemipelagic
Theme_Keyword: mass-transport deposit
Theme_Keyword: buried mass-transport deposit
Theme_Keyword: eroded strata
Theme_Keyword: sediment waves
Theme_Keyword: sea floor
Theme_Keyword: sea floor mapping
Theme_Keyword: multibeam
Theme_Keyword: SeaBeam Instruments 2112 multibeam
Theme_Keyword: NOAA ship Ronald H. Brown
Theme_Keyword: WHCMSC field activity 2002-050-FA
Theme_Keyword: National Oceanic and Atmospheric Administration (NOAA)
Theme_Keyword: Woods Hole Coastal and Marine Science Center (WHCMSC)
Theme_Keyword: Coastal and Marine Geology Program (CMGP)
Theme_Keyword: U.S. Geological Survey (USGS)
Theme_Keyword: Rutgers Institute of Coastal and Marine Sciences
Theme_Keyword: USGS Open-File Report 2004-1441
Theme_Keyword: interpretation

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: sea-floor characteristics
Theme_Keyword: marine geology
Theme_Keyword: ocean sciences

Place:

Place_Keyword_Thesaurus: none
Place_Keyword: Hudson Canyon
Place_Keyword: New York Bight
Place_Keyword: Middle Atlantic Bight
Place_Keyword: North Atlantic Ocean

Stratum:

Stratum_Keyword_Thesaurus: none
Stratum_Keyword: sea floor
Stratum_Keyword: seafloor

Access_Constraints: none
Use_Constraints: none
Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: David C. Twichell

Contact_Address:

Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA

Contact_Voice_Telephone: 508-548-8700
Contact_Electronic_Mail_Address: dtwichell@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://www.sciencebase.gov/catalog/file/get/58fa5eade4b0b7ea5452564d?name=hc_facies_browsegraphic.jpg

Browse_Graphic_File_Description:

Browse graphic of sea-floor environments in the Hudson Canyon region.

Browse_Graphic_File_Type: JPEG

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: Butman, Bradford
Originator: Twichell, D.C.
Originator: Rona, P.A.
Originator: Tucholke, B.E.
Originator: Middleton, T.J.
Originator: Robb, J.R.
Publication_Date: 2006
Title:

Sea floor topography and backscatter intensity of the Hudson Canyon region offshore of New York and New Jersey

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2004-1441

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.usgs.gov/of/2004/1441/

Cross_Reference:

Citation_Information:

Originator: Butman, Bradford
Originator: Middleton, T.J.
Originator: Thieler, E.R.
Originator: Schwab, W.C.
Publication_Date: 2003
Title:

Topography, shaded relief and backscatter intensity of the Hudson Shelf Valley, offshore of New York

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 03-372

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.usgs.gov/of/2003/of03-372/

Cross_Reference:

Citation_Information:

Originator: Andrews, B.D.
Originator: Chaytor, J.D.
Originator: ten Brink, U.S.
Originator: Brothers, D.S.
Originator: Gardner, J.V.
Publication_Date: 2013
Title:

Bathymetric terrain model of the Atlantic margin for marine geological investigations

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2012-1266

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.usgs.gov/of/2012/1266/

Cross_Reference:

Citation_Information:

Originator: EEZ-Scan Scientific Staff
Publication_Date: 1991
Title:

Atlas of the U.S. exclusive economic zone, Atlantic continental margin

Series_Information:

Series_Name: Miscellaneous Investigation Series
Issue_Identification: I-2054

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.er.usgs.gov/publication/i2054/

Cross_Reference:

Citation_Information:

Originator: Butman, Bradford
Originator: Danforth, W.W.
Originator: Clarke, J.E.H.
Originator: Signell, R.P.
Publication_Date: 2017
Title:

Bathymetry and backscatter intensity of the sea floor of the Hudson Shelf Valley

Edition: 1.0
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/F7C53J1Z

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F7C53J1Z

Data_Quality_Information:

Logical_Consistency_Report:

Interpretations were based on bathymetry and backscatter intensity data from the Ronald H. Brown multibeam survey and high-resolution seismic profiling data in USGS Woods Hole Coastal and Marine Science Center archives (EEZ Scan Scientific Staff, 1991; see cross reference). Data gaps and overlaps were identified and corrected.

Completeness_Report:

Bathymetry and backscatter intensity data from the 2002 Ronald H. Brown multibeam survey (field activity 2002-050-FA; https://cmgds.marine.usgs.gov/fan_info.php?fan=2002-050-FA) and selected high-resolution profiling data in the USGS Woods Hole Coastal and Marine Science Center archives (EEZ Scan Scientific Staff, 1991; see cross reference) were used to make this interpretation of sea-floor environments in the Hudson Canyon region. See Butman and others (2006) (in cross references).

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Accuracy of hand-drawn interpreted layer estimated to be several pixels (200 - 600 m) depending on water depth).

Lineage:

Process_Step:

Process_Description:

Geologic facies (eroded strata, failed slope, hemipelagic sediments, mass-transport deposits, buried mass-transport deposits, sediment waves) were identified using multibeam and high-resolution seismic data (Butman and others, 2006; EEZ-Scan Scientific Staff, 1991). Outlines of each facies were drawn by hand and converted to a shapefile.

Process_Date: 2004
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: David C. Twichell

Contact_Address:

Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2266
Contact_Electronic_Mail_Address: dtwichell@usgs.gov

Process_Step:

Process_Description:

Data gaps and overlaps between the hand-drawn polygons were removed using the following steps:
1) Polygon shapefile with six individual interpreted layers was imported to a Feature Dataset (UTM 18) within a file geodatabase to build topology. (ArcMap 10.3.1) 2) Topology was created for each of the two feature classes (now in the Feature Dataset), with the topology rules "Must not overlap" and "Must not have gaps". Topology was then built and validated to identify those locations. 3) The topology and features were edited to remove/repair these topology errors. 4) Feature classes, were exported from the feature dataset back to shapefile using the geographic coordinate system.

Process_Date: 2016
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Brian D. Andrews

Contact_Address:

Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348
Contact_Electronic_Mail_Address: bandrews@usgs.gov

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20200807
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: G-polygon
Point_and_Vector_Object_Count: 49

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: .000001
Longitude_Resolution: .000001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: hc_facies
Entity_Type_Definition:

Sea-floor environments (geologic facies) of the Hudson Canyon and adjacent slope and rise.

Entity_Type_Definition_Source: USGS

Attribute:

Attribute_Label: FID
Attribute_Definition: 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: INTERP
Attribute_Definition:

Interpretation of sea-floor environments (geologic facies) of the Hudson Canyon region based on multibeam bathymetry and backscatter intensity data, and high-resolution seismic profiles.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: failed slope
Enumerated_Domain_Value_Definition:

Areas of the sea floor on the continental slope that have an extensive but subtle network of scarps revealed in the multibeam bathymetry. Most of the scarps, which are attributed to mass wasting, are 20-75 m high. High-resolution seismic profiles show that the scarps truncate reflectors that underlie the stable parts of the slope to either side of the failed areas. The sea floor below the scarps is rough and commonly interrupted by additional scarps.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: hemipelagic
Enumerated_Domain_Value_Definition:

Hemipelagic deposit. Areas of the sea floor away from submarine canyons, primarily on the continental rise, identified by a smooth sea floor with low backscatter intensity, and where subbottom profiles show closely-spaced reflections that parallel the sea floor. On the continental slope, hemipelagic sediment occupies the inter-canyon sections of the upper slope and covers less of the lower part of the slope.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: mtd
Enumerated_Domain_Value_Definition:

Mass-transport deposits (mtd) in an area southwest of Hudson Canyon are identified by long narrow 'fingers' of high backscatter intensity material that originate near the base of the slope and extend downslope as much as 120 km to the south in shallow depressions. Mass-transport deposits northeast of Hudson Canyon are identified by areas of moderate to high backscatter intensity that begin at the base of the continental slope and cover most of the upper rise. High-resolution seismic profiles show that this area is characterized by seismically transparent layers and a rough surface.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: mtd_buried
Enumerated_Domain_Value_Definition:

seaward portions of two fingers of mass-transport deposits (mtd) on the continental rise southwest of Hudson Canyon covered by sediment waves.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: eroded strata
Enumerated_Domain_Value_Definition:

Areas of the sea floor along the canyon axis that appear nearly flat in the shaded relief image and floored with material showing high backscatter intensity, and areas on the canyon walls with an intricate network of gullies that indicate slope failure.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: sediment waves
Enumerated_Domain_Value_Definition:

A field of sediment waves lies on the upper continental rise on the southwest side of Hudson Canyon, and is shown most clearly on the image of backscatter intensity. The waves begin about 25 km seaward from the base of the continental slope and extend southward about 80 km across the upper rise. The sediment waves abut the rim of Hudson Canyon for approximately 50 km. These waves have crests oriented roughly east-west and wavelengths of 900-1,500 m.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: PROVINCE
Attribute_Definition:

Regions of the Hudson Canyon and adjacent continental slope and rise.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: slope
Enumerated_Domain_Value_Definition:

continental slope; area of the sea floor extending from about 200 m water depth offshore to 2,000-2,200 m water depth.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: rise
Enumerated_Domain_Value_Definition:

continental rise; area of the sea floor extending from about 2,000 meters water depth offshore to beyond the southeastern edge of the survey area.

Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: AREA
Attribute_Definition: Area in sea-floor environments polygons.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5800
Range_Domain_Maximum: 4432800000
Attribute_Units_of_Measure: square meters

Overview_Description:

Entity_and_Attribute_Overview:

This shapefile shows sea-floor environments (geologic facies) of the Hudson Canyon and adjacent slope and rise interpreted using the multibeam bathymetry and backscatter intensity data, and selected high resolution seismic profiles in the USGS archives. The geologic facies are: failed slope, mass-transport deposits, buried mass-transport deposits, sediment waves, eroded strata, and hemipelagic sediments. The province (slope or rise) identifies the location of the various facies.

Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey - ScienceBase

Contact_Address:

Address_Type: mailing and physical address
Address: Denver Federal Center
Address: Building 810
Address: Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225

Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov

Resource_Description:

This dataset contains hc_facies.shp as well as the other shapefile components, and FGDC-compliant metadata (CSDGM format).

Distribution_Liability:

Neither the U.S. Government, the Department of the Interior, nor the U.S. Geological Survey, 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 10.3.1
Format_Specification: Esri shapefile
Format_Information_Content:

Shapefile showing sea-floor environments of the Hudson Canyon region and associated metadata derived from a 2002 multibeam survey of the Hudson Canyon and adjacent slope and rise compressed in a zip file.

File_Decompression_Technique: zip
Transfer_Size: 0.1

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/58fa5eade4b0b7ea5452564d

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/58fa5eade4b0b7ea5452564d

Network_Resource_Name: https://doi.org/10.5066/F77H1GSF

Access_Instructions:

The network resources offer the options of downloading all the files or accessing the landing page of the data.

Digital_Form:

Digital_Transfer_Information:

Format_Name: WMS
Format_Version_Number: 1.3.0
Format_Information_Content:

Shapefile showing sea-floor environments of the Hudson Canyon region derived from a 2002 multibeam survey of the Hudson Canyon and adjacent slope and rise with the data provided through a WMS (web mapping service).

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalogMaps/mapping/ows/58fa5eade4b0b7ea5452564d?service=wms&request=getcapabilities&version=1.3.0

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/58fa5eade4b0b7ea5452564d

Access_Instructions:

The network resources offer the option of accessing the data through a mapping service or accessing the landing page of the data.

Digital_Form:

Digital_Transfer_Information:

Format_Name: WFS
Format_Version_Number: 1.0.0
Format_Information_Content:

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalogMaps/mapping/ows/58fa5eade4b0b7ea5452564d?service=wfs&request=getcapabilities&version=1.0.0

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/58fa5eade4b0b7ea5452564d

Access_Instructions:

The network resources offer the option of accessing the data through a mapping service or accessing the landing page of the data.

Fees: none

Technical_Prerequisites:

The shapefile of facies is compressed into a zip file (hc_facies.zip). To use these data, the user must have software capable of uncompressing the zip file and ArcGIS or another GIS application package capable of viewing the data.

Metadata_Reference_Information:

Metadata_Date: 20200807
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Bradford Butman

Contact_Address:

Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2212
Contact_Electronic_Mail_Address: bbutman@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/SB_data_release/DR_F77H1GSF/hc_facies.shp_meta.html>