Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2018 Title: Physiographic Zones of the Sea Floor offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9E9EFNE 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/P9E9EFNE Online_Linkage: https://www.sciencebase.gov/catalog/item/5bfd6055e4b0815414ca39d9 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 physiographic zones 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. Physiographic zone 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 also a companion publication to USGS OFR 2018-1181 with the following citation: 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:5bfd6055e4b0815414ca39d9 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: Physiographic Zones Theme_Keyword: Rocky Zone Theme_Keyword: Hard-bottom Plain Theme_Keyword: Nearshore Ramp Theme_Keyword: Nearshore Basin Theme_Keyword: Outer Basin Theme_Keyword: Ebb-tidal Delta Theme_Keyword: Coastal Embayment Theme_Keyword: Shell Zone Theme_Keyword: Shoal\Sand Wave 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: sedimentology Theme_Keyword: sieve-size analysis 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/5bfd6055e4b0815414ca39d9/?name=MV_ACK_physiozone_browse.png Browse_Graphic_File_Description: Image of the physiographic zone 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://www.maine.gov/dacf/mgs/explore/marine/seafloor/contents.htm 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: 2012 Title: GIS data catalog (version 2.2), in Poppe, L.J., Williams, S.J., and Paskevich, V.F., eds., 2005, USGS East-coast Sediment Analysis: Procedures, Database, and GIS Data 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 Online_Linkage: http://www.mass.gov/eea/docs/dfg/dmf/publications/tr-45.pdf Cross_Reference: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2013 Title: Geologic Mapping of the Massachusetts Sea Floor 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. 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: http://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: http://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: Attribute_Accuracy: Attribute_Accuracy_Report: The data were digitized between 1:8,000 and 1:25,000, but the recommended scale for application of these data is 1:25,000. 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. 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 feature. 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. Completeness_Report: These physiographic zones 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: https://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 on 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, 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 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, 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 on the Scarlett Isabella in 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 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. Process_Step: Process_Description: Sea floor physiographic zones were qualitatively defined in ArcGIS, following the criteria defined by Kelley and others (1996), primarily on the basis of acoustic backscatter, bathymetrically derived slope and roughness, surficial geologic interpretations from seismic-reflection data, and textural information from 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). New fields called 'Confidence' and 'PhysioZo_1' were created in the attribute table. The polygon was then partitioned into multiple physiographic zone polygons using 'cut polygon' and 'auto-complete polygon' in an edit session. As each new polygon area was created, the 'PhysioZo_1' attribute field was populated with the appropriate physiographic zone label. In general, polygon editing was done at scales between 1:8,000 and 1:25,000, depending on the size of the interpreted zone and the resolution of the source data. Source_Used_Citation_Abbreviation: All source geophysical data and sediment texture analysis data 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: The polygon feature class containing the physiographic zone 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 physiographic zones were exported from the geodatabase as a shapefile Source_Used_Citation_Abbreviation: polygon shapefile containing the physiographic zone 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: The physiographic zone polygon feature class was exported to a shapefile and the 'Shape_Area' and 'Shape_Length' fields were deleted from its attribute table (ArcCatalog and ArcMap 9.3.1). Finally, the shapefile was reprojected from UTM zone 19 N, WGS84 to GCS WGS84 using ArcToolbox > Data Management Tools > Projections and Transformations > Feature > Project. Source_Used_Citation_Abbreviation: physiographic zone polygon feature class 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: 184 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_physiozone.shp Entity_Type_Definition: Physiographic zones 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: Confidence Attribute_Definition: Each interpreted polygon was assigned an interpretation confidence value from 1-2 (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: Physiographic zones that were defined on the basis of the highest resolution bathymetry (10m) and backscatter (1m), bottom photos, sediment samples, 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: Physiographic zones that were defined on the basis of the highest resolution bathymetry (10m) and/or lidar bathymetry, possibly bottom photos, possibly sediment samples, but no acoustic backscatter or seismic interpretations were given the data interpretation confidence value of 2. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute: Attribute_Label: PhysioZo_1 Attribute_Definition: Based on geologic maps produced for the Western Gulf of Maine (Kelley and others, 1996), the sea floor within the study area can be divided into geologic environments, or physiographic zones, which are delineated from sea-floor morphology and the dominant texture of surficial material. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Rocky Zone Enumerated_Domain_Value_Definition: Rocky zones are rugged areas of high bathymetric relief, characterized by fields of mounded boulders and cobble near the terminal moraines, to relatively flat, gravel-covered, and isolated till highs. Although boulders and coarse-grained sediment are found within most physiographic zones defined here, they dominate the sea floor in rocky zones. Enumerated_Domain_Value_Definition_Source: Kelley and others, 1996; modified by USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Shelf Valleys Enumerated_Domain_Value_Definition: Shelf valleys are elongate depressions that extend offshore, often perpendicular to the trend of the coastline, and slope gently seaward. Enumerated_Domain_Value_Definition_Source: Kelley and others, 1996; modified by USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Nearshore Ramp Enumerated_Domain_Value_Definition: Nearshore ramps are areas of gently sloping sea floor with generally shore-parallel bathymetric contours. This zone is covered by primarily sandy sediment, though patches of cobbles and boulders crop out on the sea floor in places. Nearshore ramps are typically adjacent to arcuate shoreline areas and grade into deeper-water. Enumerated_Domain_Value_Definition_Source: Kelley and others, 1996; modified by USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ebb Tidal Delta Enumerated_Domain_Value_Definition: Ebb-tidal deltas are lobate sandy shoals found on the side of inlets that form through the interaction of waves and ebbing tidal currents. Ebb-tidal delta zones in the study area are located near Muskeget Channel Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Hard-Bottom Plains Enumerated_Domain_Value_Definition: Hard-bottom plains are mostly low-relief but rough zones of sea floor composed primarily of coarse sands and gravels that are situated adjacent and between the shoal/sand wave zones in the sounds. Enumerated_Domain_Value_Definition_Source: Kelley and others, 1996; modified by U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Coastal Embayment Enumerated_Domain_Value_Definition: Coastal embayments include small bays and harbors in the vicinity of Nantucket. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Shell Zones Enumerated_Domain_Value_Definition: Shell zones are areas that are nearly completely covered by carbonate shells. Portions of sea floor north of Nantucket Sound were mapped where high densities of slipper shells (Crepidula fornicata) cover the sea floor. Despite high acoustic backscatter in sidescan-sonar data, sediment samples recovered primarily muddy sediments beneath the shells. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Shoal - Sand Waves Enumerated_Domain_Value_Definition: Shoal/sand wave areas are sea-floor zones dominated by linear to sinuous, high relief bedforms primarily composed of sandy sediments that have been reworked from adjacent glacial deposits by energetic waves and tidal currents. The largest shoal extends between Aquinnah and Nomans. Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - Science Base 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_physiozone shapefile components contains qualitatively derived polygons that define sea floor physiographic zones offshore of western and southern Martha's Vineyard and north of Nantucket, MA. The dataset also contains a browse graphic (MV_ACK_physiozone.png), and 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: 0.269 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5bfd6055e4b0815414ca39d9 Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/5bfd6055e4b0815414ca39d9 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/5aff06aae4b0da30c1bfcde2?service=wms&request=getcapabilities&version=1.3.0 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5aff06aae4b0da30c1bfcde2 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/5aff06aae4b0da30c1bfcde2?service=wfs&request=getcapabilities&version=1.0.0 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/5aff06aae4b0da30c1bfcde2 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: 2018 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