2023-05-10 09544600 1.0 FGDC 002 conmap 14.007 -82.042793 -63.999992 24.011797 45.216763 1 Geographic GCS_North_American_1983 Angular Unit: Degree (0.017453) <GeographicCoordinateSystem xsi:type='typens:GeographicCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.8'><WKT>GEOGCS[&quot;GCS_North_American_1983&quot;,DATUM[&quot;D_North_American_1983&quot;,SPHEROID[&quot;GRS_1980&quot;,6378137.0,298.257222101]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433],AUTHORITY[&quot;EPSG&quot;,4269]]</WKT><XOrigin>-400</XOrigin><YOrigin>-400</YOrigin><XYScale>11258999068426.238</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>8.9831528411952133e-09</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><LeftLongitude>-180</LeftLongitude><WKID>4269</WKID><LatestWKID>4269</LatestWKID></GeographicCoordinateSystem> 150000000 5000 2023-05-10 11:57:47.67 editor:esri.dijit.metadata.editor FGDC CSDGM Metadata false FALSE 2023-05-10 11141100 The purpose of the Continental Margin Mapping Program 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. 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of the Coastal and Marine Geology Program (CMGP) of the U.S. Geological Survey (USGS) and from both published and unpublished studies.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.<br /><a href='https://opdgig.dos.ny.gov/datasets/d9ab7922977d460f97327f5e4d153d2f/explore' target='_self' rel='nofollow ugc'>View Dataset on the Gateway</a> Continental Margin Mapping Program (CONMAP) 2005-06-01T00:00:00 Larry Poppe USGS lpoppe@usgs.gov (508) 548-8700 -82.042793 -63.999992 45.216763 24.011797 1 -82.042793 -63.999992 45.216763 24.011797 1 U.S. Geological SurveyUSGSboundariesNYSERDACablessediments This dataset displays Continental Margin Mapping Program (CONMAP) sediment layers, which show sediment grain size distributions. It does not accurately depict small-scale sediment distributions or sea-floor variability. <div style='text-align:Left;'><div><div><p><span>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.</span></p></div></div></div> <p><span style='font-family: &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 15px;'><br /></span></p><p><span style='font-family: &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; font-size: 15px;'>This dataset and related graphics are being provided to the public free of charge and for informational purposes only. They are not legal documents and are not intended to be used as such. This dataset was not prepared for, nor is it to be used for or relied upon for legal, engineering, navigation, or surveying purposes. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and within the limitations of geospatial data in general, and these data in particular. Use of these data, where metadata reveals the source of the data, requires proper citation to the data source as provided. The New York Department of State is not responsible for improper or incorrect use of the data described and/or contained on this web site. The New York Department of State gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. This disclaimer applies both to individual use of the data and aggregate use with other data. The New York Department of State makes no claims, promises, or guarantees about the accuracy, completeness, or adequacy of the datasets and expressly disclaims liability for errors and omissions in the contents of this dataset. No warranty of any kind, implied, expressed or statutory, including but not limited to warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose and freedom from computer virus, is given with respect to the contents of this website or its hyperlinks to other Internet resources.</span></p> Other Constraints Other Constraints Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.0.12790 dataset 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1683734264764r7795884005888478 2023-05-10 11:57:44.17 Larry Poppe U.S. Geological Survey Geologist lpoppe@usgs.gov 384 Woods Hole Road Woods Hole MA 02543-1598 (508) 548-8700 x2314 14.007 File Geodatabase Feature Class withheld Local Area Network 002 14.007 Shapefile EPSG 9.8(3.0.1) conmapsg Shapefile Attribute Table ESRI Feature Class 376 OBJECTID OBJECTID Internal feature number. Esri OID 4 0 0 Sequential unique whole numbers that are automatically generated. Shape Shape Feature geometry. ESRI Geometry 0 0 0 Coordinates defining the features. AREA AREA Area of polygon in native units Software Computed Double 8 0 0 PERIMETER PERIMETER Length of polygon perimeter in native units Software Computed Double 8 0 0 SEDIMENT SEDIMENT Assigned code describing sediment. U.S. Geological Survey String 12 0 0 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 SEDNUM SEDNUM Assigned code describing sediment U.S. Geological Survey Double 8 0 0 1 9 1 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 Shape_Length Shape_Length Length of feature in internal units. Esri Double 8 0 0 Positive real numbers that are automatically generated. Shape_Area Shape_Area Area of feature in internal units squared. Esri Double 8 0 0 Positive real numbers that are automatically generated. 376 Simple FALSE 376 TRUE FALSE