Citation:
Citation_Information:
Originator: David Twichell
Publication_Date: 2005
Title:
Mass-wasting deposits within the SIS-1000 1999 USGS sidescan sonar survey of the Upper Continental Slope offshore of Louisiana (MASSWASTING.SHP)
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1071
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/10.3133/ofr20051071
Online_Linkage:
Larger_Work_Citation:
Citation_Information:
Originator: Twichell, D.C.
Originator: Cross, V.A.
Originator: Paskevich, V.F.
Originator: Hutchinson, D.R.
Originator: Winters, W.J.
Originator: Hart, P.E.
Publication_Date: 2005
Title:
GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1071
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2005/1071/
Description:
Abstract:
Since 1982 the U.S. Geological Survey (USGS) has collected a large amount of surficial and shallow subsurface geologic information in the deep parts of the Gulf of Mexico. These data include digital sidescan sonar imagery, digital seismic-reflection data, and descriptions and analyses of piston and gravity cores. The data were collected during several different projects that addressed surficial and shallow subsurface geologic processes. Some of these data sets have already been published, but the growing interest in the occurrence and distribution of gas hydrates in the Gulf of Mexico warrants integrating these existing data and associated interpretations into a GIS to provide regional background information for ongoing and future gas hydrate research.
Purpose:
This GIS data layer outlines the distribution of surface and nearsurface mass-wasting deposits within the SIS-1000 sidescan sonar study area. The interpretation used both the backscatter nature of the sidescan sonar imagery as well as the shallow subsurface character on seismic profiles to define the extent of these deposits.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19990412
Beginning_Time: 0941
Ending_Date: 19990414
Ending_Time: 1544
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -91.685574
East_Bounding_Coordinate: -91.659624
North_Bounding_Coordinate: 27.771826
South_Bounding_Coordinate: 27.730756
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5c9d8d20-690e-4c87-a9d0-d8dea3a99628
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 Science Center
Theme_Keyword: WHSC
Theme_Keyword: Gulf of Mexico GIS database
Theme_Keyword: polygon
Theme_Keyword: ArcView
Theme_Keyword: shapefile
Theme_Keyword: U.S. Exclusive Economic Zone
Theme_Keyword: EEZ
Theme_Keyword: mass-wasting deposits
Theme_Keyword: geologic interpretation
Theme_Keyword: Information Archives Field Activity 99002
Theme_Keyword: interpretation
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: scientific interpretation
Theme_Keyword: sea-floor characteristics
Theme_Keyword: marine geology
Theme_Keyword: geospatial datasets
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Gulf of Mexico
Place_Keyword: Louisiana Continental Slope
Place_Keyword: North America
Place_Keyword: United States
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: David Twichell
Contact_Organization: U.S. Geological Survey
Contact_Position: Oceanographer
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 x2266
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: dtwichell@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
Browse_Graphic_File_Description:
Thumbnail image showing the extent and content of the data layer.
Browse_Graphic_File_Type: GIF
Browse_Graphic:
Browse_Graphic_File_Name:
Browse_Graphic_File_Description:
Overview image showing the extent and content of the data layer.
Browse_Graphic_File_Type: GIF
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535