U.S. Geological Survey 200506 1.1 vector digital data Open-File Report 2005-1001 Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program http://pubs.usgs.gov/of/2005/1001/data/conmapsg/conmapsg.zip http://pubs.usgs.gov/of/2005/1001/htmldocs/datacatalog.htm L.J. Poppe S.J. Williams V.F. Paskevich 2005 Open-File Report 2005-1001 Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program Publication and data are released via digital media (either CD-ROM or DVD). This digital publication may also be available via the web at pubs.usgs.gov http://pubs.usgs.gov/of/2005/1001/ 1.0 conmapsg Sediments off the eastern United States vary markedly in texture - the size, shape, and arrangement of their grains. However, for descriptive purposes, it is typically most useful to classify these sediments according to their grain-size distributions. Starting in 1962, the U.S. Geological Survey (USGS) and the Woods Hole Oceanographic Institution (WHOI) began a joint program to study the marine geology of the continental margin off the Atlantic coast of the United States. As part of this program and numerous subsequent projects, thousands of sediment samples were collected and analyzed for particle size. The sediment map of the Continental Margin Mapping Program (CONMAP) series is a compilation of grain-size data produced in the sedimentation laboratory of the Woods Hole Science Center (WHSC) of the Coastal and Marine Geology Program (CMGP) of the U.S. Geological Survey (USGS) and from both published and unpublished studies. Sediment was classified using the Wentworth (1929) grain-size scale and the Shepard (1954) scheme of sediment classification. Certain grain-size categories are combined because of the paucity of some sediment textures; blank parts of the maps indicate areas where data are insufficient to infer sediment type. Bathymetry is used as a guide in placing some of the contacts between different sediment types. However, because the true boundaries between sediment types are probably highly irregular or gradational, because the extreme textural variability that characterizes some areas does not appear at this scale, and because the accuracy of the navigational systems used during the earlier studies is limited, all contacts should be considered to be inferred. The sediment classification for any given polygon (i.e. area) reflects the dominant surficial sediment type for that polygon. It does not mean that other sediment types are not present within the polygon, only that the dominant sediment type is the one that is most common. The purpose of the CONMAPSG sediment layer is to show the sediment grain size distributions. The maps depicted in this series are old and do not accurately depict small-scale sediment distributions or sea-floor variability. This data layer is supplied primarily as a gross overview and to show general textural trends. en 1982 1999 ground condition Complete Continually -82.042793 -63.999992 45.216763 24.011797 -82.042793-63.99999224.01179745.216763 General U.S. Geological Survey USGS Coastal and Marine Geology Program CMGP Woods Hole Science Center WHSC ArcView shapefile surficial sediment polygons sediment type grain size sediment textural trends sediment distribution ISO 19115 Topic Category oceans and estuaries boundaries geoscientificInformation General Eastern U.S. Exclusive Economic Zone coastal ocean Atlantic East Coast east coast Georges Bank Gulf of Maine Baltimore Canyon Trough Carolina Trough Blake Plateau None 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. Larry Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2314 (508-) 457-2310 lpoppe@usgs.gov Monday-Friday, 8am-5pm, Eastern Standard Time http://pubs.usgs.gov/of/2005/1001/data/conmapsg/conmapsg-thumb.gif Thumbnail image showing distribution and extent of data layer along the U.S. East Coast GIF http://pubs.usgs.gov/of/2005/1001/data/conmapsg/conmapsg.gif Thumbnail image showing distribution and extent of data layer along the U.S. East Coast GIF Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Lawrence J. Poppe (ed.) Chris Polloni(ed.) 20000501 Open File Report 00-358 Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program Data are released via CD-ROM media. The publication may also be available online at pubs.usgs.gov http://pubs.usgs.gov/of/of00-358/ Poppe, L.J. Schlee, J.S. Butman, B. Lane, C.M. 1989 IMAP 1986-A Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program Poppe, L.J. Schlee, J.S. Knebel, H.J. 1994 IMAP 1987-D Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program Shapefile The assigned sediment attributes in this data set are believed to be accurate. The sediment classification for any given polygon (i.e. area) reflects the dominant surficial sediment type for that polygon. It does not mean that other sediment types are not present within the polygon, only that the dominant sediment type is the one that is most common. These data are believed to be logically consistent, although not tested. Geometry appears to be topologically clean. This dataset covers the GLORIA project area for the United States East Coast Atlantic Ocean Exclusive Economic Zone (EEZ) area. The accuracy of this dataset is based on source data that is assumed to have met National Map Accuracy Standards Poppe, L.J. Schlee, J.S. Butman, B. Lane, C.M. 1989 1.0 map IMAP 1986-A Reston, VA U.S. Geological Survey, Coastal and Marine Geology Program 1000000 paper 1989 publication date IMAP 1987-D Map was used as source during process of digitizing sediment polygons. Poppe, L.J. Schlee, J.S. Knebel, H.J 1994 1.0 map IMAP 1987-D Reston, VA U.S. Geological Survey, Coastal and Marine Geology Program 1000000 paper 1994 publication date IMAP 1987-D Map was used as source during process of digitizing sediment polygons. Poppe, L.J. Lane, C.M. Unpublished Material 1.0 map 1000000 paper 1989 unpublished Mid-Atlantic continental margin map was used as source during process of digitizing sediment polygons. Poppe, L.J. Lane, C.M. Unpublished Material 1.0 map 1000000 paper 1989 unpublished map of the south-Atlantic continental margin and Blake Plateau Map was used as source during process of digitizing sediment polygons. Source maps from the Gulf of Maine and Georges Bank and the mid-Atlantic, Cape Cod to Albemarle Sound were digitized in PC Arc Info to create a vector line data set of sediment polygon boundaries, registered to the NOAA medium-resolution shoreline, and processed to create a polygon dataset. IMAP 1986-A IMAP 1987-D 1995 vector line data nat_sed.e00 Kevin Joy National Underwater Research Center GIS Specialist mailing and physical address

1084 Shennecossett Road

Groton CT 06340 USA (860) 405-9112 kevin.joy@uconn.edu Source maps from the remaining two areas (Carolina Trough, Albemarle Sound to Charleston and South Atlantic and Blake Plateau) were digitized to create a vector line data set of sediment polygon boundaries. unpublished Mid-Atlantic continental margin map unpublished map of the south-Atlantic continental margin and Blake Plateau 2000 vector line data Larry Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2314 (508) 457-2310 lpoppe@usgs.gov The "line" data generated from digitizing the sediment boundaries of the Carolina Trough, Albemarle Sound to Charleston and the South Atlantic and Blake Plateau areas were registered to the NOAA medium-resolution shoreline, combined with the data from the Gulf of Maine and Georges Bank and the mid-Atlantic, Cape Cod to Albemarle Sound, and processed in ArcInfo to create the a polygon dataset of the entire U.S. east coast. 20000718 conmapsg.dbf conmapsg.shp conmapsg.shx Dan Martin TPMC Senior GIS Analyst mailing and physical address

Mill Wharf Plaza, suite 208

Scituate MA 02066 USA (781) 544-0026 (781) 544-3086 dmartin@tpmc.com Monday-Friday, 8am-5pm, EST vector line data Removed the "land" and "no data" polygons and the ArcInfo fields from the shapefile. conmapsg.dbf conmapsg.shp conmapsg.shx 20041219 conmapsg.dbf conmapsg.shp conmapsg.shx Valerie Paskevich U.S. Geological Survey Information Technology Specialist, GIS Coordinator mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2281 (508) 457-2310 vpaskevich@usgs.gov conmapsg.dbfconmapsg.dbfValerie PaskevichU.S. Geological SurveyInformation Specialist, GIS Coordinatormailing and physical address

384 Woods Hole Road

Woods HoleMA02543-1598USA(508) 548-8700 x2281(508) 457-2310vpaskevich@usgs.govMerged some polygons that had previously been divided by old Continental Margin Mapping Program boundaries. The split polygons showed unnecessary boundaries. Combining the polygons provides a better representation of the East Coast dataset.ArcView 3.3 and XTOOLSconmapsg.shp20041220conmapsg.shp Vector G-polygon 19662 SimplePolygonFALSE376FALSEFALSE 0.00001 0.00001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6,378,137 298.257 GCS_North_American_1983 conmapsg Shapefile Attribute Table ESRI Feature Class376 FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. AREA Area of polygon in native units Software Computed Number123 PERIMETER Length of polygon perimeter in native units Software Computed Number123 SEDIMENT Assigned code describing sediment. U.S. Geological Survey Character String br bedrock U.S. Geological Survey gr gravel U.S. Geological Survey gr-sd gravel-sand U.S. Geological Survey sd sand U.S. Geological Survey cl-st/sd clay-silt/sand U.S. Geological Survey sd/st/cl sand/silt/clay U.S. Geological Survey sd-cl/st sand-clay/silt U.S. Geological Survey sd-st/cl sand-silt/clay U.S. Geological Survey cl clay U.S. Geological Survey String12 SEDNUM Assigned code describing sediment U.S. Geological Survey 1 9 1 integer count 1 bedrock USGS 2 gravel USGS 3 gravel-sand USGS 4 sand USGS 5 clay-silt/sand USGS 6 sand-clay/silt USGS 7 clay USGS 8 sand-silt/clay USGS 9 sand/silt/clay USGS Number11 The assigned sediment attributes in this data set are believed to be accurate. The sediment classification for any given polygon (i.e. area) reflects the dominant surficial sediment type for that polygon. It does not mean that other sediment types are not present within the polygon, only that the dominant sediment type is the one that is most common. Larry Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2314 (508) 457-2310 lpoppe@usgs.gov Downloadable Data Although this derived data set and its lineage dataset have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy. Shapefile ArcView 3.3 The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The DBF file contains the attribute data in dBASE format. The PRJ file contains the coordinate system information (optional). The AVL file contains the legend information (optional). The SBN and SBX files contain the spatial index of the geospatial data (optional). The XML file contains the metadata describing the data set <data set name>.shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). zip 11.982 Kbytes 14.007ESRI Shapefile http://pubs.usgs.gov/of/2005/1001/data/congmapsg/conmapsg.zip http://pubs.usgs.gov/of/2005/1001/data/congmapsg/ Data are downloadable via the World Wide Web (WWW). None These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com. 20041220 Valerie Paskevich U.S. Geological Survey Information Technology Specialist, GIS Coordinator mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2281 (508) 457-2310 vpaskevich@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time None None en20050513http://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535conmapsg-82.042793-63.99999245.21676324.0117971-82.042793-63.99999245.21676324.0117971ISO 19115 Geographic Information - MetadataDIS_ESRI1.0dataset002file://\\VALPASDTXP\D$\my webs\texture\data\conmapsg\conmapsg.shpLocal Area Network14.007ShapefileGCS_North_American_19833762005081708571800200508170923240020050817