Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2007 Title: Geologic outcrop and subcrop type within the inner shelf of Long Bay (Polygon) Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1346 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1346/arcgis/Onshore/surf_geol.zip Larger_Work_Citation: Citation_Information: Originator: Baldwin, W.E. Originator: Denny, J.F. Originator: Schwab, W.C. Originator: Gayes, P.T. Originator: Morton, R.A. Originator: Driscoll, N.W. Publication_Date: 200 Title: Geologic Framework Studies of South Carolina's Long Bay from Little River Inlet to Winyah Bay, 1999-2003; geospatial data release Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1346 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Other_Citation_Details: 1 DVD-ROM Online_Linkage: http://pubs.usgs.gov/of/2005/1346/ Description: Abstract: In 1999, the USGS, in partnership with the South Carolina Sea Grant Consortium, began a study to investigate processes affecting shoreline change along the northern coast of South Carolina, focusing on the Grand Strand region. Previous work along the U.S. Atlantic coast shows that the structure and composition of older geologic strata located seaward of the coast heavily influences the coastal behavior of areas with limited sediment supply, such as the Grand Strand. By defining this geologic framework and identifying the transport pathways and sinks of sediment, geoscientists are developing conceptual models of the present-day physical processes shaping the South Carolina coast. The primary objectives of this research effort are: 1) to provide a regional synthesis of the shallow geologic framework underlying the coastal upland, shoreface and inner continental shelf, and define its role in coastal evolution and modern beach behavior; 2) to identify and model the physical processes affecting coastal ocean circulation and sediment transport, and to define their role in shaping the modern shoreline; and 3) to identify sediment sources and transport pathways; leading to construction of a regional sediment budget. Purpose: This data set contains polygons that identify the geologic unit type present in outcrop or subcrop along the Long Bay inner shelf. Polygon areas are based upon digital interpretations of Chirp seismic reflection data and coastal plain boreholes. A polygon outlining the inner shelf study area was erased (ArcGIS Analysis toolbox)in iterations using polygons outlining gridded surfaces of Holocene surficial sediment (sedthick_grd)and paleochannel unconformities (paleoch_grd). Outside of the area covered by the Holocene surficial sediment grid, seismic data indicate surficial sediment cover of < 50 cm. In these areas, paleochannel fills, Cretaceous, and Tertiary units are interpreted to crop out at the sea floor, or subcrop near the surface. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2007 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -79.158289 East_Bounding_Coordinate: -78.517055 North_Bounding_Coordinate: 33.845955 South_Bounding_Coordinate: 33.198465 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Science Center Theme_Keyword: WHSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: ESRI Shapefile Theme_Keyword: polygon Theme_Keyword: seafloor geology Theme_Keyword: Holocene Theme_Keyword: Paleochannel fill Theme_Keyword: Cretaceous Theme_Keyword: Tertiary Theme_Keyword: outcrop Theme_Keyword: subcrop Theme_Keyword: interpretive data layer Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: oceans and coastal Theme_Keyword: oceans and estuaries Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General Place_Keyword: South Carolina Place_Keyword: Grand Strand Place_Keyword: Horry County Place_Keyword: Georgetown County Place_Keyword: North Myrtle Beach Place_Keyword: Myrtle Beach Place_Keyword: Surfside Place_Keyword: Garden City Place_Keyword: Pawleys Island Place_Keyword: Waites Island Place_Keyword: Long Bay Place_Keyword: Southeast United States Place_Keyword: United States Place_Keyword: Atlantic Ocean 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. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Wayne Baldwin 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: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2226 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: wbaldwin@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2005/1346/images/surf_geol.jpg Browse_Graphic_File_Description: Image showing the type of geologic outcrop and subcrop within inner shelf of Long Bay Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: All attributes were checked in a consistent manner. Logical_Consistency_Report: No additional checks for topological consistency were performed on this data. Completeness_Report: All interpretations of seafloor geologic type are present in this data set Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2007 Title: SEDTHICK_GRD - ESRI ArcRaster representing the isopach of Holocene surficial sediment within the inner shelf of Long Bay, South Carolina Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1346 Publication_Information: Publication_Place: Wooods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1346/arcgis/seismic_srf/sedthick_grd.zip Larger_Work_Citation: Citation_Information: Originator: Baldwin, W.E. Originator: Denny, J.F. Originator: Schwab, W.C. Originator: Gayes, P.T. Originator: Morton, R.A. Originator: Driscoll, N.W. Publication_Date: 2007 Title: Geologic Framework Studies of South Carolina's Long Bay from Little River Inlet to Winyah Bay, 1999-2003; geospatial data release Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1346 Publication_Information: Publication_Place: Wooods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1346/ Type_of_Source_Media: DVD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2007 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: sedthick_grd, v1.0, 2006 Source_Contribution: This data set contains polygons that identify the geologic unit type present in outcrop or subcrop along the Long Bay inner shelf. Polygon areas are based upon digital interpretations of Chirp seismic reflection data and coastal plain boreholes. A polygon outlining the inner shelf study area was erased (ArcGIS Analysis toolbox) in iterations using polygons outlining gridded surfaces of Holocene surficial sediment (sedthick_grd) and paleochannel unconformities (paleoch_grd). Outside of the area covered by the Holocene surficial sediment grid, seismic data indicate surficial sediment cover of < 50 cm. In these areas, paleochannel fills, Cretaceous, and Tertiary units are interpreted to crop out at the sea floor, or subcrop near the surface. Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2007 Title: PALEOCH_GRD - ESRI ArcRaster representing the elevations of paleochannel unconformities underlying the inner shelf of Long Bay, South Carolina Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1346 Publication_Information: Publication_Place: Wooods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1346/arcgis/seismic_srf/paleoch_grd.zip Larger_Work_Citation: Citation_Information: Originator: Baldwin, W.E. Originator: Denny, J.F. Originator: Schwab, W.C. Originator: Gayes, P.T. Originator: Morton, R.A. Originator: Driscoll, N.W. Publication_Date: 2007 Title: Geologic Framework Studies of South Carolina's Long Bay from Little River Inlet to Winyah Bay, 1999-2003; geospatial data release Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1346 Publication_Information: Publication_Place: Wooods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1346/ Type_of_Source_Media: DVD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2007 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: paleoch_grd, v1.0, 2006 Source_Contribution: This data set contains polygons that identify the geologic unit type present in outcrop or subcrop along the Long Bay inner shelf. Polygon areas are based upon digital interpretations of Chirp seismic reflection data and coastal plain boreholes. A polygon outlining the inner shelf study area was erased (ArcGIS Analysis toolbox) in iterations using polygons outlining gridded surfaces of Holocene surficial sediment (sedthick_grd) and paleochannel unconformities (paleoch_grd). Outside of the area covered by the Holocene surficial sediment grid, seismic data indicate surficial sediment cover of < 50 cm. In these areas, paleochannel fills, Cretaceous, and Tertiary units are interpreted to crop out at the sea floor, or subcrop near the surface. Process_Step: Process_Description: Polygon shapefiles outlining the gridded surface areas of Holocene surficial sediments (sedthick_grd) and paleochannel unconformities (paleoch_grd) were generated. Source_Used_Citation_Abbreviation: sedthick_grd, v1.0, 2006 Source_Used_Citation_Abbreviation: paleoch_grd, v1.0, 2006 Process_Date: 2003 Source_Produced_Citation_Abbreviation: surf_geol.shp Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Wayne Baldwin 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: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2226 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: wbaldwin@usgs.gov Process_Step: Process_Description: The erase function, within the ArcGIS Analysis toolbox, was used in iterations to reduce a polygon outlining the entire inner shelf study area. First, the polygon outlining Holocene surficial sediment was used, and then the polygon outlining paleochannel fills. Process_Date: 2003 Process_Step: Process_Description: The resulting polygon of the study area (without areas coincident with the Holocene surficial sediment and paleochannel surfaces) was then split, using an arc that was projected from the intersection of the Cretaceous/Tertiary boundary with the coast to the seaward edge of the study area. Process_Date: 2003 Process_Step: Process_Description: Each polygon shapefile was classified by the interpreted geologic type and the four were merged back to a single polygon shape file. Process_Date: 2003 Source_Produced_Citation_Abbreviation: surf_geol.dbf Source_Produced_Citation_Abbreviation: surf_geol.shp Source_Produced_Citation_Abbreviation: surf_geol.shx 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: 1536 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000008 Longitude_Resolution: 0.0000008 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: surf_geol Entity_Type_Definition: ESRI Shapefile Entity_Type_Definition_Source: ESRI 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: Id Attribute_Definition: Internal ID Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 2487 Attribute_Units_of_Measure: integer count Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: geol_type Attribute_Definition: Age and type of geologic unit present in outcrop at the seafloor, or subcrop near the surface Attribute_Definition_Source: USGS Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cretaceous - rocks of the Pee Dee formation Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: USGS Enumerated_Domain: Enumerated_Domain_Value: Holocene - surficial sedimentary deposits Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: USGS Enumerated_Domain: Enumerated_Domain_Value: Quaternary - Paleochannel Fill Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: USGS Enumerated_Domain: Enumerated_Domain_Value: Tertiary - rocks of the Black Mingo group Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: USGS Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Wayne Baldwin 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: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2226 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: wbaldwin@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: Although all data 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. 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: SHP Format_Version_Number: ArcGIS 9.x Format_Specification: ESRI Polygon Shapefile Format_Information_Content: 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 .shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). Transfer_Size: 1.070 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2005/1346//arcgis/Onshore/surf_geol.zip Access_Instructions: Data are downloadable via the World Wide Web (WWW). Offline_Option: Offline_Media: DVD-ROM Recording_Capacity: Recording_Density: 4.75 Recording_Density_Units: Gbytes Recording_Format: UDF Fees: None Technical_Prerequisites: 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. Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Metadata_Reference_Information: Metadata_Date: 20060926 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Wayne Baldwin 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: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2226 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: wbaldwin@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 Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile