Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2018 Title: Sediment Texture of the Sea Floor offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9E9EFNE Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9E9EFNE Online_Linkage: https://www.sciencebase.gov/catalog/item/5bfd6064e4b0815414ca39e1 Larger_Work_Citation: Citation_Information: Originator: Elizabeth A. Pendleton Originator: Wayne E. Baldwin Originator: David S. Foster Originator: Seth D. Ackerman Originator: Brian D. Andrews Originator: Laura L. Brothers Originator: William C. Schwab Publication_Date: 2018 Title: Geospatial Data Layers of Shallow Geology, Sea-Floor Texture, and Physiographic Zones from the Inner Continental Shelf of Martha’s Vineyard from Aquinnah to Wasque Point, and Nantucket from Eel Point to Great Point Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9E9EFNE Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Pendleton, E.A., Baldwin, W.E., Foster, D.F., Ackerman, S.D., Andrews, B.D, Brothers, L.L., and Schwab, W.C., 2018, Geospatial data layers of shallow geology, sea-floor texture, and physiographic zones from the inner continental shelf of Martha's Vineyard from Aquinnah to Wasque Point, and Nantucket from Eel Point to Great Point: U.S. Geological Survey data release, https://doi.org/10.5066/P9E9EFNE. Online_Linkage: https://doi.org/10.5066/P9E9EFNE Online_Linkage: https://www.sciencebase.gov/catalog/item/5afee3bfe4b0da30c1bfbd28 Description: Abstract: Geologic, sediment texture, and physiographic zone maps characterize the sea floor south and west of Martha's Vineyard and north of Nantucket, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of Massachusetts. Purpose: These sea floor sediment texture distributions were created from geophysical and sample data collected from south of Martha's Vineyard and north of Nantucket, and are used to characterize the sea floor in the area. Sediment texture maps are important data layers for marine resource managers charged with protecting fish habitat, delineating marine boundaries, and assessing environmental change due to natural or human impacts. Supplemental_Information: This data release is a companion publication to USGS OFR 2018-1181: Pendleton, E.A., Baldwin, W.E., Ackerman, S.D, Foster, D.S., Andrews, B.D., Schwab, W.C., and Brothers, L.L. 2018, Sea-floor texture and physiographic zones of the inner continental shelf from Aquinnah to Wasque Point, Martha’s Vineyard, and Eel Point to Great Point, Nantucket Island, Massachusetts: U.S. Geological Survey Open-File Report 2018–1181, https://doi.org/10.3133/ofr20181181. The data in the source contributions used for this compilation are from field activities 2007-011-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2007-011-FA), 2011-004-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2011-004-FA), and 2013-003-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2013-003-FA). Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070809 Ending_Date: 20130611 Currentness_Reference: ground condition of the source data used for the interpretation Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.8627 East_Bounding_Coordinate: -70.0341 North_Bounding_Coordinate: 41.3894 South_Bounding_Coordinate: 41.1958 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:5bfd6064e4b0815414ca39e1 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: Massachusetts Office of Coastal Zone Management Theme_Keyword: CZM Theme_Keyword: Sea floor Theme_Keyword: Marine Geology Theme_Keyword: Interpretation Theme_Keyword: Bathymetry Theme_Keyword: Backscatter Theme_Keyword: Slope Theme_Keyword: Topography Theme_Keyword: Esri Shapefile Theme_Keyword: Bottom type Theme_Keyword: Sediment Cover Theme_Keyword: Sediment Texture Theme_Keyword: Sediment Distribution Theme_Keyword: Bottom Photographs Theme_Keyword: Sediment Samples Theme_Keyword: Seismic-reflection Profiles Theme_Keyword: U.S. Geological Survey Open-File Report 2008-1288 Theme_Keyword: U.S. Geological Survey Open-File Report 2012-1006 Theme_Keyword: U.S. Geological Survey Open-File Report 2016-1168 Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: marine geology Theme_Keyword: unconsolidated deposits Theme_Keyword: sea-floor characteristics Theme_Keyword: sand deposits Theme_Keyword: gravel deposits Theme_Keyword: clay deposits Theme_Keyword: sedimentology Theme_Keyword: grain-size analysis Theme_Keyword: surficial geologic units Theme_Keyword: rocks and deposits Theme_Keyword: maps and atlases Theme_Keyword: geospatial datasets Theme_Keyword: scientific interpretation Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: None Place_Keyword: Vineyard Sound Place_Keyword: Nantucket Sound Place_Keyword: Atlantic Ocean Place_Keyword: Martha's Vineyard Place_Keyword: Nantucket Place_Keyword: Cape Cod Place_Keyword: Aquinnah Place_Keyword: Chilmark Place_Keyword: Squibnocket Point Place_Keyword: Squibnocket Beach Place_Keyword: Gay Head Place_Keyword: South Beach Place_Keyword: Katama Beach Place_Keyword: Wasque point Place_Keyword: Chappaquiddick Island Place_Keyword: Long Point Wildlife Refuge Place_Keyword: Tisbury Place_Keyword: Nomans Land Place_Keyword: Lucy Vincent Beach Place_Keyword: Tisbury Great Pond Beach Place_Keyword: Muskeget Island Place_Keyword: Tuckernuck Island Place_Keyword: Eel Point Place_Keyword: Dionis Beach Place_Keyword: Children's Beach Place_Keyword: Coatue Place_Keyword: Great Point Place_Keyword: Nantucket Harbor Place_Keyword: Wasque Shoal Place_Keyword: Muskeget Channel Place_Keyword: Tuckernuck Bank Place_Keyword: Tuckernuck Shoal Place_Keyword: Shovelful Shoal Place_Keyword: Massachusetts Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Sea floor Access_Constraints: None Use_Constraints: 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. Additionally, there are limitations associated with qualitative sediment mapping interpretations. Because of the scale of the source geophysical data and the spacing of samples, not all changes in sea floor texture are captured. The data were mapped between 1:8,000 and 1:25,000, but the recommended scale for application of these data is 1:25,000. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2226 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/5bfd6064e4b0815414ca39e1/?name=MV_ACK_sedtexture_browse.png Browse_Graphic_File_Description: Image of the sediment texture shapefile for offshore of western and southern Martha's Vineyard and north of Nantucket. The browse graphic is derived from the companion OFR (Pendleton and others, 2018). Browse_Graphic_File_Type: PNG Cross_Reference: Citation_Information: Originator: Kelley, J.T. Originator: Barnhardt, W.A. Originator: Belknap, D.F. Originator: Dickson, S.M. Originator: Kelley, A.R. Publication_Date: 1998 Title: The Seafloor Revealed: The Geology of the Northwestern Gulf of Maine Inner Continental Shelf Series_Information: Series_Name: Maine Geological Survey Open-File Report Issue_Identification: 96-6 Publication_Information: Publication_Place: Augusta, Maine Publisher: Maine Geological Survey, Natural Resources Information and Mapping Center Online_Linkage: https://digitalmaine.com/mgs_publications/119/ Cross_Reference: Citation_Information: Originator: Barnhardt, W.A. Originator: Kelley, J.T. Originator: Dickson, S.M. Originator: Belknap, D.F. Publication_Date: 1998 Title: Mapping the Gulf of Maine with Side-scan Sonar: a New Bottom-type Classification for Complex Seafloors Series_Information: Series_Name: Journal of Coastal Research Issue_Identification: 14(2) Publication_Information: Publication_Place: Royal Palm Beach, FL Publisher: Coastal Education and Research Foundation, Inc. Cross_Reference: Citation_Information: Originator: McMullen, K.Y. Originator: Paskevich, V.F. Originator: Poppe, L.J. Publication_Date: 2014 Title: USGS East-coast Sediment Analysis: Procedures, Database, and GIS Data Edition: 3.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1001 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2005/1001/ Cross_Reference: Citation_Information: Originator: Ford, K.H. Originator: Voss, S.E Publication_Date: 2010 Title: Seafloor Sediment Composition in Massachusetts Determined Using Point Data Series_Information: Series_Name: Massachusetts Division of Marine Fisheries Technical Report Issue_Identification: TR-45 Publication_Information: Publication_Place: New Bedford, MA Publisher: Massachusetts Division of Marine Fisheries Cross_Reference: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2013 Title: Geologic Mapping of the Seafloor Offshore of Massachusetts Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Other_Citation_Details: Geologic mapping of the Massachusetts inner continental shelf is a cooperative effort that was initiated in 2003 by the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM). The National Oceanic and Atmospheric Administration (NOAA-NOS) is also an important partner and contributes hydrographic data that are integrated into the maps. The overall goal of this cooperative is to determine the geologic framework of the sea floor inside the 3-mile limit of State waters, using high-resolution geophysical techniques, sediment sampling, and sea-floor photography. Any source data used to generate interpretative maps and data products are cited in detail in the source citation section of this metadata file. Online_Linkage: https://woodshole.er.usgs.gov/project-pages/coastal_mass/ Cross_Reference: Citation_Information: Originator: Wayne E. Baldwin Originator: David S. Foster Originator: Elizabeth A. Pendleton Originator: Walter A. Barnhardt Originator: William C. Schwab Originator: Brian D. Andrews Originator: Seth Ackerman Publication_Date: 2016 Title: Shallow geology, sea-floor texture, and physiographic zones of Vineyard and western Nantucket Sounds, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2016-1119 Publication_Information: Publication_Place: Reston, VA Publisher: US Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20161119 Cross_Reference: Citation_Information: Originator: David S. Foster Originator: Wayne E. Baldwin Originator: Walter A. Barnhardt Originator: William C. Schwab Originator: Seth D. Ackerman Originator: Brian D. Andrews Originator: Elizabeth A. Pendleton Publication_Date: 2015 Title: Shallow geology, sea-floor texture, and physiographic zones of Buzzards Bay, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2014-1220 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20141220 Cross_Reference: Citation_Information: Originator: Elizabeth E. Pendleton Originator: Walter A. Barnhardt Originator: Wayne E. Baldwin Originator: David S. Foster Originator: William C. Schwab Originator: Brian D. Andrews Originator: Seth D Ackerman Publication_Date: 2015 Title: Sea-floor texture and physiographic zones of the inner continental shelf from Salisbury to Nahant, Massachusetts, including the Merrimack Embayment and Western Massachusetts Bay Series_Information: Series_Name: Open-File Report Issue_Identification: 2015-1153 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20151153 Cross_Reference: Citation_Information: Originator: Elizabeth A. Pendleton Originator: Wayne E. Baldwin Originator: Walter A. Barnhardt Originator: Seth D. Ackerman Originator: David S. Foster Originator: Brian D. Andrews Originator: William C. Schwab Publication_Date: 2013 Title: Shallow Geology, Seafloor Texture, and Physiographic Zones of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1157 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2012/1157/ Data_Quality_Information: Logical_Consistency_Report: These data were drawn and vetted for accuracy using the source input raster files and point sample data described in the processing steps and source contributions. Overlapping features and unintentional gaps within the survey area were identified using the topology checker in ArcMap (version 10.5) and corrected or removed. Not all digitized sea-floor features contained sample information, so often the sea-floor texture is characterized by the nearest similar feature that contains a sample. Conversely, sometimes a digitized feature contained multiple samples and not all of the samples within the feature were in agreement (of the same texture). In these cases all data (raster and sample) were considered, and the dominant sediment texture from sample analyses did not necessarily determine the primary texture assigned to a polygon. Samples from rocky areas often only consist of bottom photographs, because large particle size often prevents the recovery of a sediment sample. Bottom photo classification can be subjective, such that determining the sediment type that is greater than 50% of the view frame is estimated by the interpreter and may differ among interpreters. Bottom photo transects often reveal changes in the sea floor over distances of less than 100 m and these changes are often not resolved in acoustic data. Heterogeneous sea floor texture can change very quickly, and many small-scale changes will not be detectable or mappable at a scale of 1:25,000. The boundaries of polygons are often inferred on the basis of sediment samples, and even boundaries that are traced on the basis of amplitude changes in geophysical data are subject to migration. Polygon boundaries should be considered an approximation of the location of a change in texture. Completeness_Report: These sediment cover data are defined for areas where source data exists. In general, gaps in the coverage coincide with gaps in the source data. However, some small data gaps were interpreted through extrapolation. Areas of lower data quality and incomplete coverage are noted in a data confidence attribute field. All of the interpretive layer bounds in this report are a little short of the data bounds in western Vineyard Sound, this is because this dataset abuts the interpretive layers of Baldwin and others (2016), and are not redundant with that interpretation. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: These data were produced qualitatively from acoustic and sample data with varying resolutions. Horizontal uncertainty associated with sample collection especially, can be quite high (100's of meters), much higher than positional uncertainty associated with acoustic data (usually less than 10's of meters). The date of sample collection and ship station positioning all contribute to sample position uncertainty. These qualitatively derived polygons outlining sea floor features are estimated to be within 50 meters, horizontally, but locally may be higher when delineation is based on sample information alone. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Denny, J.F. Originator: Danforth, W.W. Originator: Foster, D.S. Originator: Sherwood, C.R. Publication_Date: 2009 Title: Geophysical data collected off the south shore of Martha's Vineyard, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2008-1288 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2008/1288/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070809 Ending_Date: 20070813 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Denny and others, 2009 Source_Contribution: This report provided source geophysical data (sidescan-sonar, bathymetry, and seismic-reflection profiles) for the area south of Martha's Vineyard surrounding the Martha's Vineyard Coastal Observatory. The 2007 mapping was conducted aboard the M/V Megan T. Miller. High-resolution chirp seismic-reflection profiles were collected during U.S. Geological Survey field activity 2007-011-FA using an EdgeTech Geo-Star full spectrum sub-bottom (FSSB) system and SB-0512i towfish. Thorough descriptions of acquisition and processing parameters for the survey are provided by Denny and others (2009) in the report and seismic-reflection metadata. Shallow geologic framework and surficial geology were interpreted from post-processed chirp seismic-reflection profiles. Source_Information: Source_Citation: Citation_Information: Originator: Andrews, B.D. Originator: Ackerman, S.D. Originator: Baldwin, W.E. Originator: Foster, D.S. Originator: Schwab, W.C. Publication_Date: 2014 Title: High-Resolution Geophysical Data from the Inner Continental Shelf: Vineyard Sound, Massachusetts Edition: 2.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1006 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2012/1006/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20110507 Ending_Date: 20110517 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Andrews and others, 2014 Source_Contribution: This report provided source geophysical data (sidescan-sonar, bathymetry, and seismic-reflection profiles) for the study area on the western side of Martha's Vineyard. The 2011 mapping was conducted on the R/V Scarlett Isabella during U.S. Geological Survey field activity 2011-004-FA. Chirp seismic-reflection data were collected using an EdgeTech Geo-Star FSSB subbottom profiling system and an SB-0512i towfish. Thorough descriptions of acquisition and processing parameters for each survey are provided by Andrews and others (2014) in the methods section and seismic-reflection metadata. Shallow geologic framework was interpreted from post-processed chirp seismic-reflection profiles. Only the data collected along the western shore of Martha’s Vineyard was used for this dataset. Source_Information: Source_Citation: Citation_Information: Originator: Ackerman, S.D. Originator: Brothers L.L. Originator: Foster, D.S. Originator: Andrews B.D. Originator: Baldwin W.E. Originator: Schwab W.C. Publication_Date: 2016 Title: High-Resolution Geophysical Data From the Inner Continental Shelf: South of Martha's Vineyard and North of Nantucket, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2016-1168 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2016/1168/ Online_Linkage: https://doi.org/10.3133/ofr20161168 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20130522 Ending_Date: 20130611 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Ackerman and others, 2016 Source_Contribution: This report provided source geophysical data (sidescan-sonar, bathymetry, and seismic-reflection profiles) for the majority of this study including offshore of southern Martha's Vineyard and north of Nantucket. These areas were surveyed with the R/V Scarlett Isabella 2013 during U.S. Geological Survey field activity 2013-003-FA. Seismic-reflection data were collected using an EdgeTech Geo-Star FSSB subbottom profiling system and an SB-0512i towfish. Thorough descriptions of acquisition and processing parameters for each survey are provided by Ackerman and others (2016) in the methods section and seismic-reflection metadata. Shallow geologic framework and surficial geology were interpreted from post-processed chirp seismic-reflection profiles. Source_Information: Source_Citation: Citation_Information: Originator: Brian Andrews Originator: Wayne Baldwin Originator: Daniel Sampson Originator: William Schwab Publication_Date: 2018 Title: Continuous Bathymetry and Elevation Models of the Massachusetts Coastal Zone and Continental Shelf Edition: 1.0 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/F72806T7 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/f72806t7 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20110507 Ending_Date: 20130611 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Andrews and others, 2018 Source_Contribution: This report provided source bathymetry for the study area including offshore of southern Martha's Vineyard and north of Nantucket. Thorough descriptions of the merging and processing parameters are provided by Andrews and others (2018) in the metadata. Source_Information: Source_Citation: Citation_Information: Originator: Ford, K.H. Originator: Huntley, E.C. Originator: Sampson, D.W. Originator: Voss, S. Publication_Date: Unpublished Material Title: Massachusetts Sediment Database Other_Citation_Details: This sample database has been compiled and vetted from existing samples and datasets by the Massachusetts Office of Coastal Zone Management. The data are currently unpublished, but may be acquired by contacting the CZM office: 251 Causeway St Boston, MA 02114 (617) 626-1000 czm@state.ma.us Type_of_Source_Media: digital vector Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19950101 Ending_Date: 20110101 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: CZM sample database Source_Contribution: Sediment sample databases of Ford and Voss (2010) and McMullen and others (2011) were combined then edited and supplemented with NOAA chart sampling data and bottom photos and descriptions by a group of GIS specialists at the Massachusetts Office of Coastal Zone Management (Emily Huntley, personal communication). These data contained sediment laboratory statistics when available, visual descriptions if sediment analysis was not performed or if the site was a bottom photograph, and classification fields of Barnhardt and others (1998), Shepard (1954), and Wentworth (1922) as well as average sediment statistics and phi size, when laboratory analysis was conducted. Source_Information: Source_Citation: Citation_Information: Originator: U.S. Army Corps of Engineers - Joint Airborne Lidar Bathymetry Center of Expertise Publication_Date: 2009 Title: 2005 - 2007 US Army Corps of Engineers (USACE) Topo/Bathy Lidar: Maine, Massachusetts, and Rhode Island Publication_Information: Publication_Place: Charleston, SC Publisher: NOAA National Ocean Service (NOS), Coastal Services Center (CSC) Online_Linkage: http://coast.noaa.gov/dataviewer/index.html?action=advsearch&qType=in&qFld=ID&qVal=116 Online_Linkage: ftp://coast.noaa.gov/pub/DigitalCoast/lidar1_z/geoid12a/data/116 Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070527 Ending_Date: 20070527 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USACE-JALBTCX, 2009 Source_Contribution: The source lidar data for the very nearshore (less than -5 m) region along the western and southern shoreline of Martha's Vineyard. Lidar (Light Detection and Ranging) data were acquired with a SHOALS-1000T (for hydrographic and topographic data) using the Joint Airborne Joint Airborne LiDAR Bathymetry Center of Expertise (JALBTCX) lidar plane. These data are now publically available in LAS lidar format via NOAA's Digital Coast website. Process_Step: Process_Description: The texture and spatial distribution of sea-floor sediment were qualitatively analyzed in ArcGIS using several input data sources (listed in the source contribution), including acoustic backscatter, bathymetry, seismic-reflection profile interpretations, bottom photographs, and sediment samples. The interpretation was initiated by creating a new polygon feature class in an ArcMap 10.5 file geodatabase based on the extent of the regional bathymetric DEM (Andrews and others, 2018, and clipped to the extent of this study area). The polygon was then partitioned into multiple sediment texture polygons using 'cut polygon' and 'auto-complete polygon' in an edit session. In general, polygon editing was done at scales between 1:8,000 and 1:25,000, depending on the size of the traced feature and the resolution of the source data. Some areas interpreted as a single sediment textural unit may contain multiple polygons that indicate different interpretation confidence levels. The following numbered steps outline the workflow of the data interpretation. 1. Backscatter intensity data was the first input. Changes in backscatter were digitized to outline possible changes in sea-floor texture on the basis of acoustic return. Areas of high backscatter (light colors) have strong acoustic reflections and suggest boulders, gravels, and generally coarse sea-floor sediments. Low-backscatter areas (dark colors) have weak acoustic reflections and are generally characterized by finer grained material such as muds and fine sands. 2. The polygons were then refined and edited using gradient, rugosity, and hillshaded relief images derived from interferometric and multibeam swath bathymetry. Areas of rough topography and high rugosity are typically associated with rocky areas, while smooth, lower-relief regions tend to be blanketed by fine-grained sediment. These bathymetric derivatives helped to refine polygon boundaries where changes from primarily rock to primarily gravel may not have been apparent in backscatter data, but could easily be identified in hillshaded relief and slope changes. 3. The third data input (where available) was the stratigraphic interpretation of seismic-reflection profiles, which further constrained the extent and general shape of sea-floor sediment distributions and rocky outcrops, and also provided insight concerning the likely sediment texture of the feature on the basis of glacial or post-glacial origin. Seismic lines and the surficial geologic maps derived from them are used here as input data and were collected at typically 100-meter spacing, with tie-lines generally spaced 1-km apart. 4. After all the sea-floor features were traced from the geophysical data, a spatial join was conducted to provide grain size statistics based on sediment samples. The fields that contain sediment texture statistics or mean water depth information were created and populated using data joins or zonal statistics functions within ArcMap (version 10.5). The fields beginning with "Avg_" and the 'Count_' field were automatically generated by computing a data join where the CZM sample database (vector points) was edited to include only the samples with laboratory sediment analysis and joined to the qualitatively derived polygon file. The fields beginning with "Avg_" and ending in "_1" were automatically generated by computing a data join where the CZM sample database (vector points) included samples with laboratory and visual sediment analysis. Each polygon was given an average of the numeric attributes of the points (with laboratory grain size analysis or with and without laboratory analysis) that fall inside it, and the count field shows how many laboratory analyzed points fall inside each polygon. 153 samples were analyzed in the laboratory. Several fields that were not needed were deleted after the join. A mean water depth (NAVD 88) field was created using ArcMap (version 10.5): ArcToolbox - Spatial Analyst Tools > Zonal > Zonal Statistics as Table, where the mean water depth for each polygon (input zone data using the zone field sed_type) was derived from the regional bathymetric DEM (see Andrews and others, 2018). No data raster values were ignored in determining the output value for each polygon zone. The output was saved to a table, which was joined with the sediment type polygon shapefile. All of the joined fields except MEAN were turned off. 5. A new field was created in the shapefile called 'Barnhardt'. Seafloor composition observations from sediment samples and bottom photographs/video were used to define sediment texture for the polygons using Barnhardt and others (1998) classification. Samples with laboratory grain size analysis were preferred over visual descriptions when defining sediment texture throughout the study area; however within large polygons with a small number of samples (1 or 2), visual samples were considered and used to provide additional insight on the mean sediment texture. Bottom photo stations are typically around 2-km apart, but do not always provide a clear view of the sea floor, and the density of sediment samples varies throughout the study area. Some polygons contained more than one sample with grain-size statistics, while others contained none. For multiple samples within a polygon, the dominant sediment texture was used to classify sediment type (often aided by the 'data join' sediment statistics described in an earlier processing step). In rocky areas, bottom photos were used in the absence of sediment samples to qualitatively define sediment texture. Polygons that lacked sample information were texturally defined through extrapolation from adjacent or proximal polygons of similar acoustic character that did contain sediment samples. Process_Date: 2017 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Process_Step: Process_Description: After some additional qualitative polygon editing and reshaping was done in order to create a sediment map that was in the best agreement with all input data: lidar, bathymetry, backscatter, seismic interpretations, bottom photographs, and sediment samples, 4 more fields were added (ArcMap version 9.3.1). The first field, 'simple' is just 3 classes: sand, mud, or hardbottom. A field 'Confidence' was added as a data interpretation confidence, which describes how confident we are in the interpretation on the basis of the number and quality of the input data sources (see the entity and attribute sections for more information on these fields). The last 2 ('Carbonate' and 'Biogenic_C') fields were added and populated manually to incorporate percent carbonate information that accompanied sample analyses in Nantucket Sound. Finally, a second join was conducted similar to the previous processing steps, but allowing all samples with analysis (visual and laboratory) to be incorporated into the statistics. The polygon feature class containing the sediment texture units was assigned topology rules, (i.e. no gaps and no overlaps). Topology errors were identified and remedied using the topology toolbar in ArcMap (10.5). Finally, the sediment texture was exported from the geodatabase as a shapefile. Source_Used_Citation_Abbreviation: polygons containing sediment texture units Process_Date: 2017 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@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: 438 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0197427722 Longitude_Resolution: 0.0261514554 Geographic_Coordinate_Units: Decimal seconds Geodetic_Model: Horizontal_Datum_Name: WGS_1984 Ellipsoid_Name: WGS_84 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: MV_ACK_sedtexture.shp Entity_Type_Definition: Sediment texture shapefile 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: Barnhardt Attribute_Definition: Bottom-type classification on the basis of twelve composite units that represent combinations of four end-member units (R= rock; G= gravel; S= sand; M= mud). Attribute_Definition_Source: Barnhardt and others (1998) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: G Enumerated_Domain_Value_Definition: The end-member texture (= or greater than 90%) Gravel (G) is the primary texture. Enumerated_Domain_Value_Definition_Source: Barnhardt and others (1998) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Gs Enumerated_Domain_Value_Definition: The dominant texture (greater than 50%) Gravel (G) is given the upper case letter and the subordinate texture (less than 50%) sand (s) is given a lower case letter. Enumerated_Domain_Value_Definition_Source: Barnhardt and others (1998) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: S Enumerated_Domain_Value_Definition: The end-member texture (= or greater than 90%) Sand (S) is the primary texture. Enumerated_Domain_Value_Definition_Source: Barnhardt and others (1998) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sg Enumerated_Domain_Value_Definition: The dominant texture (greater than 50%) Sand (S) is given the upper case letter and the subordinate texture (less than 50%) gravel (g) is given a lower case letter. Enumerated_Domain_Value_Definition_Source: Barnhardt and others (1998) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sm Enumerated_Domain_Value_Definition: The dominant texture (greater than 50%) Sand (S) is given the upper case letter and the subordinate texture (less than 50%) mud (m) is given a lower case letter. Enumerated_Domain_Value_Definition_Source: Barnhardt and others (1998) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ms Enumerated_Domain_Value_Definition: The dominant texture (greater than 50%) Mud (M) is given the upper case letter and the subordinate texture (less than 50%) sand (s) is given a lower case letter. Enumerated_Domain_Value_Definition_Source: Barnhardt and others (1998) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Rs Enumerated_Domain_Value_Definition: The dominant texture (greater than 50%) Rock (R) is given the upper case letter and the subordinate texture (less than 50%) sand (s) is given a lower case letter. Enumerated_Domain_Value_Definition_Source: Barnhardt and others (1998) Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sr Enumerated_Domain_Value_Definition: The dominant texture (greater than 50%) Sand (S) is given the upper case letter and the subordinate texture (less than 50%) rock (r) is given a lower case letter. Enumerated_Domain_Value_Definition_Source: Barnhardt and others (1998) Attribute: Attribute_Label: Confidence Attribute_Definition: Each interpreted polygon was assigned a data interpretation confidence value from 1-4 (more to less confident) on the basis of the quality and number of input data sources. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: Sediment texture regions that were defined on the basis of the highest resolution bathymetry (10m) and backscatter (1m), bottom photos, sediment samples with laboratory analysis, and seismic interpretations were given the highest data interpretation confidence value of 1. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: Sediment texture regions that were defined on the basis of the highest resolution bathymetry (10m), backscatter (1m), and seismic interpretations, and possibly bottom photos and/or qualitative descriptions of sediment samples, but no sediment samples with laboratory analysis were given the data interpretation confidence value of 2 Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: Sediment texture regions that were defined on the basis of the highest resolution bathymetry (10m) and/or lidar bathymetry, and sediment samples with laboratory analysis and/or qualitative descriptions, but no acoustic backscatter or seismic interpretations were given the data interpretation confidence value of 3. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 4 Enumerated_Domain_Value_Definition: Sediment texture regions that were defined on the basis of the highest resolution bathymetry (10m) and/or lidar bathymetry, but no sediment samples with laboratory analysis and/or qualitative descriptions, and no acoustic backscatter or seismic interpretations were given the data interpretation confidence value of 3. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Count_ Attribute_Definition: The number of sediment samples (with laboratory analyzed grain size statistics) that occur within each qualitatively derived polygon. This field was automatically generated by Esri when point data (sample database) is joined to a polygon (sediment texture interpretation). A value of -999 indicates there are no samples within that polygon. Attribute_Definition_Source: Esri Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 33 Attribute_Units_of_Measure: count Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: Avg_GRAVEL Attribute_Definition: Average percent weight (%) gravel (as determined from samples with laboratory analyzed grain size statistics) within each qualitatively derived polygon. This field was automatically generated by Esri as a summary of the numeric attributes of the points that fall inside a polygon when point data (sample database) is joined to a polygon (sediment texture interpretation). A value of -999 indicates that no sample was available within a particular feature. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 30.73 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Avg_SAND Attribute_Definition: Average percent weight (%) sand within each qualitatively derived polygon. This field was automatically generated by Esri as a summary of the numeric attributes of the points that fall inside a polygon when point data (sample database) is joined to a polygon (sediment texture interpretation). A value of -999 indicates that no sample was available within a particular feature. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 25.27 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Avg_MUD Attribute_Definition: Average percent weight (%) silt and clay within each qualitatively derived polygon. This field was automatically generated by Esri as a summary of the numeric attributes of the points that fall inside a polygon when point data (sample database) is joined to a polygon (sediment texture interpretation). A value of -999 indicates that no sample was available within a particular feature. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 73.2 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Carbonate Attribute_Definition: Average percent weight (%) of carbonate within each qualitatively derived polygon. A few samples from Nantucket sound had received carbonate analysis and these data were incorporated into the CZM sample database. A value of -999 indicates that no sample was available within a particular feature. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.02 Range_Domain_Maximum: 23.25 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Biogenic_c Attribute_Definition: Description of carbonate sediment based on percent weight of carbonate. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: trace Enumerated_Domain_Value_Definition: The weight percent of the coarse fraction (sand + gravel) that is carbonate is less than 2 percent Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: present Enumerated_Domain_Value_Definition: The weight percent of the coarse fraction (sand + gravel) that is carbonate is more than 2 percent but less than 10 percent Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: abundant Enumerated_Domain_Value_Definition: The weight percent of the coarse fraction (sand + gravel) that is carbonate is more than 10 percent but less than 50 percent Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: unknown Enumerated_Domain_Value_Definition: The weight percent of the coarse fraction (sand + gravel) that is carbonate is unknown because no carbonate analysis was performed. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: Avg_GRAVEL_1 Attribute_Definition: Average percent weight (%) gravel (as determined from samples WITH and WITHOUT laboratory analyzed grain size statistics) within each qualitatively derived polygon. This field was automatically generated by Esri as a summary of the numeric attributes of the points that fall inside a polygon when point data (sample database) is joined to a polygon (sediment texture interpretation). A value of -999 indicates that no sample was available within a particular feature. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Avg_SAND_1 Attribute_Definition: Average percent weight (%) sand (as determined from samples WITH and WITHOUT laboratory analyzed grain size statistics) within each qualitatively derived polygon. This field was automatically generated by Esri as a summary of the numeric attributes of the points that fall inside a polygon when point data (sample database) is joined to a polygon (sediment texture interpretation). A value of -999 indicates that no sample was available within a particular feature. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Avg_MUD_1 Attribute_Definition: Average percent weight (%) mud (as determined from samples WITH and WITHOUT laboratory analyzed grain size statistics) within each qualitatively derived polygon. This field was automatically generated by Esri as a summary of the numeric attributes of the points that fall inside a polygon when point data (sample database) is joined to a polygon (sediment texture interpretation). A value of -999 indicates that no sample was available within a particular feature. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 100 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: simple Attribute_Definition: sediment nomenclature on the basis of 3 simple classes: sand, mud, hardbottom as defined in the CZM sample database Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sand Enumerated_Domain_Value_Definition: Sediment whose primary component (greater than 50%) is sand Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: hardbottom Enumerated_Domain_Value_Definition: Sediment whose primary component is rock, boulder, cobble, or coarse gravel Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: mud Enumerated_Domain_Value_Definition: Sediment whose primary component (greater than 50%) is silt and clay Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: water_dept Attribute_Definition: Average seafloor elevation in meters below NAVD 88 within each qualitatively derived polygon. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -31.45 Range_Domain_Maximum: -3.49 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 0.01 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: GS ScienceBase Contact_Address: Address_Type: mailing address Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Country: United States Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: MV_ACK_sedtexture (and the related shapefile componensts) contains qualitatively derived polygons that define sea floor sediment texture offshore of western and southern Martha's Vineyard and north of Nantucket, MA. The dataset also contains a browse graphic (MV_ACK_sedtexture_browse.png), and the associated CSDGM metadata in XML format. 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 U.S. Geological Survey 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 v. 10.5.1 shapefile Transfer_Size: 0.39 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5bfd6064e4b0815414ca39e1 Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5bfd6064e4b0815414ca39e1 Network_Resource_Name: https://doi.org/10.5066/P9E9EFNE Access_Instructions: To download the data, it is recommended that you go to the page containing the data and take advantage of the large file handler. The first link is to the page containing the data. The second is a direct link to download all data available from the page as a zip file. And the final link is to the publication landing page. Digital_Form: Digital_Transfer_Information: Format_Name: WMS Format_Information_Content: ArcGIS v. 10.5.1 shapefile 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/5aff06afe4b0da30c1bfcdf1?service=wms&request=getcapabilities&version=1.3.0 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5aff06afe4b0da30c1bfcdf1 Network_Resource_Name: https://doi.org/10.5066/P9E9EFNE Access_Instructions: The first link in the network resources accesses the data through a coverage service, the second is to the page containing the data, and the third link is to the publication landing page. Digital_Form: Digital_Transfer_Information: Format_Name: WFS Format_Information_Content: ArcGIS v. 10.5.1 shapefile provided through a WFS (web feature service). Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalogMaps/mapping/ows/5aff06afe4b0da30c1bfcdf1?service=wfs&request=getcapabilities&version=1.0.0 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5aff06afe4b0da30c1bfcdf1 Network_Resource_Name: https://doi.org/10.5066/P9E9EFNE Access_Instructions: The first link in the network resources accesses the data through a mapping service, the second is to the page containing the data, and the third link is to the publication landing page. Fees: None Technical_Prerequisites: These data are available in Environmental Systems Research Institute (Esri) shapefile format. The user must have software capable of importing and processing this data type. Metadata_Reference_Information: Metadata_Date: 20200807 Metadata_Review_Date: 2017 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-548-8700 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: None Metadata_Use_Constraints: None