Keywords
Theme:
geoscientificInformation
Theme:
Oil shale resources, Economic geology
Theme:
Energy resources, Oil shale, Oil, Resource assessment, Earth science, Natural resources, U.S. Geological Survey, USGS, Geology, Eocene Green River Formation, Structure, LaClede bed, Laney Member, Overburden
Place:
United States, Green River Basin, WY, Washakie Basin, Wyoming
Description
Abstract
An ESRI GRID raster data model and TIN model of the LaClede bed of the Laney Member of the Eocene Green River Formation structure was needed to perform overburden calculations in the Green River and Washakie Basins, southwestern Wyoming as part of a National Oil Shale Assessment.
Purpose
Increasing energy demand, changing economics, new technology, and geopolitical issues have spurred renewed interest in other energy alternatives such as oil shale, heavy oil, and tar sands. The USGS Energy Resources Program has previously conducted extensive field and geologic research on these commodities and is initiating an effort to inventory and make these important legacy information assets accessible to the public, land managers, and other decision-makers. In addition, the Energy Program is scoping the geologic, technical, economic, and environmental factors controlling the production and use of these energy sources and will provide recommendations for future research in order to meet the energy needs of the United States.
Links to graphics describing the data
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Status of the data
Complete
Data update frequency:
As needed
Time period for which the data is relevant
Date and time:
2011
Description:
publication date
Publication Information
Who created the data: U.S. Geological Survey, Tracey J. Mercier
Date and time:
2011
Publisher and place:
U.S. Geological Survey, Denver, CO
Series name: U.S. Geological Survey Digital Data Series
Series issue: DDS-69-DD
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Data storage and access information
File name: lcld_str_g
Type of data: Downloadable GIS data
Location of the data:
http://pubs.usgs.gov/dds/dds-069/dds-069-dd/
Data processing environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
Accessing the data
Data format: ESRI GRID
Size of the data: 29.315 MB
Data transfer size: 29.315 MB
How to decompress the file: unzip
Network location:
http://certmapper.cr.usgs.gov/data/oil_shale/spatial/WY/spatial.zip
Access instructions: The URL above links to a zipped file of spatial data used to calculate oil shale resources for the Green River and Washakie Basins, southwestern Wyoming. The file contains all spatial data for DDS-69-DD.
Accessing the data
Data format: ESRI TIN
How to decompress the file: unzip
Network location:
http://certmapper.cr.usgs.gov/data/oil_shale/spatial/WY/spatial.zip
Access instructions: The URL above links to a zipped file of spatial data used to calculate oil shale resources for the Green River and Washakie Basins, southwestern Wyoming. The file contains all spatial data for DDS-69-DD.
Constraints on accessing and using the data
Access constraints:
none
Use constraints:
This dataset is appropriate for regional-scale analysis at scales of 1:500,000 or less.
Details about this document
Contents last updated: 20110321
at time 12380100
Who completed this document
Tracey J. Mercier
U.S. Geological Survey, Energy Resources Science Center
mailing and physical address:
U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
Denver, Colorado 80225
USA
303 236 5088 (voice)
303 236 0459 (fax)
datamgt@usgs.gov
Contact Instructions:
For inquiries regarding this document, please include the metadata contact person's name, dataset name, and publication series and number.
Standards used to create this document
Standard name: FGDC Content Standards for Digital Geospatial Metadata
Standard version: FGDC-STD-001-1998
Time convention used in this document: local time
Metadata profiles defining additonal information
ESRI Metadata Profile: http://www.esri.com/metadata/esriprof80.html
Horizontal coordinate system
Projected coordinate system name: NAD_1927_Lambert_Conformal_Conic
Geographic coordinate system name: GCS_North_American_1927
Details
Map Projection Name: Lambert Conformal Conic
Standard Parallel: 33.000000
Standard Parallel: 45.000000
Longitude of Central Meridian: -109.000000
Latitude of Projection Origin: 39.000000
False Easting: 0.000000
False Northing: 0.000000
Planar Coordinate Information
Planar Distance Units: meters
Coordinate Encoding Method: row and column
Coordinate Representation
Abscissa Resolution: 63.615000
Ordinate Resolution: 63.615000
Geodetic Model
Horizontal Datum Name: North American Datum of 1927
Ellipsoid Name: Clarke 1866
Semi-major Axis: 6378206.400000
Denominator of Flattening Ratio: 294.978698
Altitude System Definition
Distance Units: feet
Depth System Definition
Distance Units: feet
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Bounding coordinates
Horizontal
In decimal degrees
West:
-111.326645
East:
-108.894216
North:
40.334085
South:
39.079463
In projected or local coordinates
Left: -196724.889327
Right: 8942.405673
Top: 147320.551560
Bottom: 11248.066560
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Lineage
FGDC lineage
Process step 1
Process description: The first step was to create a limiting-resource polygon file for the LaClede Bed by superimposing a digital file consisting of the Laney Member outcrop with a Wyoming Public Land Survey System (PLSS) township grid using publicly available data (Green and Drouillard, 1994; BLM, 2002). In areas where the Laney Member was not mapped, the stratigraphically-closest contact was used. Elevations on top of the LaClede Bed were obtained from a digital file compiled by the assessment team. The digital file was then used to generate a model of the surface at the top of the bed in ArcGIS by using the GeoStatistical Analyst’s Radial Basis Function (RBF) contouring method. The RBF surface model was converted to an ESRI GRID and a Triangulated Irregular Network (TIN) model.
Process software and version: ArcGIS 9.2
Process date: 2009
Who did this process
Tracey J. Mercier
U.S. Geological Survey, Energy Resources Science Center
mailing and physical address:
U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center
Denver, Colorado 80225
USA
303 236 5088 (voice)
303 236 0459 (fax)
tmercier@usgs.gov
Sources
Source 1:
The digital geologic map of Wyoming in ARC/INFO format
Media: online
Scale denominator: 1:500,000
Contribution: outcrop lines
Source 2:
wytwnsh
(wytwnsh)
Media: online
Contribution: township polygons
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Spatial data quality
Horizontal positional accuracy
All raster and TIN models have been peer-reviewed and are found to be geologically reasonable and accurate.
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Spatial data description
Raster dataset information
Raster format: GRID
SDTS raster type: Grid Cell
Number of raster bands: 1
Raster properties
Origin location: Upper Left
Has pyramids: TRUE
Has colormap: FALSE
Data compression type: Default
Display type: matrix values
Cell information
Number of cells on x-axis: 3233
Number of cells on y-axis: 2139
Number of cells on z-axis: 1
Number of bits per cell: 32
Cell Size
X distance: 63.615000
Y distance: 63.615000