Geologic outcrop and subcrop type within the inner shelf of Long Bay (Polygon)
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Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: U.S. Geological Survey
- Publication_Date: 2007
- Title:
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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
- Issue_Identification: 2005-1346
- Online_Linkage: <http://pubs.usgs.gov/of/2005/1346/arcgis/sf_env/seafloorenv.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: 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/>
- Description:
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- Abstract:
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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:
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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:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: 2007
- Currentness_Reference: publication date
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
-
- Bounding_Coordinates:
-
- West_Bounding_Coordinate: -79.158289
- East_Bounding_Coordinate: -78.517005
- 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: outcrop
- Theme_Keyword: seafloor geology
- Theme_Keyword: Holocene
- Theme_Keyword: Paleochannel fill
- Theme_Keyword: Cretaceous
- Theme_Keyword: interpretive data layer
- Theme_Keyword: Tertiary
- Theme_Keyword: subcrop
- 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: North Myrtle Beach
- Place_Keyword: Myrtle Beach
- Place_Keyword: Surfside
- Place_Keyword: Garden City
- Place_Keyword: Pawleys Island
- Place_Keyword: Waites Island
- 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 Road
- 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:
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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:
-
These data were interpretted from seismic-reflection and
sample data at a regional scale of 1:75,000.
- Completeness_Report:
-
All interpretations of seafloor geologic type are present in this data set
- Logical_Consistency_Report:
-
No additional checks for topological consistency were performed on the data.
- Positional_Accuracy:
-
- Horizontal_Positional_Accuracy:
-
- Horizontal_Positional_Accuracy_Report:
-
Interpretations are derived from seismic-reflection and sample data at a
regional scale of 1:75000.
- Lineage:
-
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
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- 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
- Issue_Identification: 225-1346
- 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/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: 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/>
- 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
- Issue_Identification: 2005-1346
- Publication_Information:
-
- Publication_Place: Woods Hole Science Center, Woods Hole, MA
- Publisher: U.S. Geological Survey
- 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: 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/>
- 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: palech_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 Road
- 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: 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_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 Road
- 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: wbaldwin@usgs.gov
- 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: 2007
- 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 Road
- 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: wbaldwin@usgs.gov
- 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: 2007
- 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 Road
- 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: wbaldwin@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: 1536
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Geographic:
-
- Latitude_Resolution: 0.000001
- Longitude_Resolution: 0.000001
- 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 polygon 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: geologic type (age classification)
- Enumerated_Domain_Value_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: Holocene - surficial sedimentary deposits
- Enumerated_Domain_Value_Definition: geologic type (age classification)
- Enumerated_Domain_Value_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: Quaternary - Paleochannel Fill
- Enumerated_Domain_Value_Definition: geologic type (age classification)
- Enumerated_Domain_Value_Definition_Source: USGS
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value: Tertiary - rocks of the Black Mingo group
- Enumerated_Domain_Value_Definition: geologic type (age classification)
- 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 Road
- 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: 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 9.0
- 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 <data set name>.shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional).
- File_Decompression_Technique: no compression applied
- 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 can be downloaded 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 the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.
- Metadata_Reference_Information:
-
- Metadata_Date: 20070123
- 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 Road
- 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: jdenny@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_Extensions:
-
- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.2 on Wed Mar 07 15:27:08 2007