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| Digital Data Series 069–C: Readme File |
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| About USGS / Science Topics / Maps, Products & Publications / Education / FAQ |
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For sale by U.S. Geological Survey Information Services
Box 25286, Building 810
Denver Federal Center Denver, CO 80225-0086
Telephone (303) 202-4200
For more information about the U.S. Geological Survey and its products:
Telephone 1-888-ASK-USGS
URL: https://www.usgs.gov/
The purpose of the U.S. Geological Survey’s (USGS) National Oil and Gas Assessment is to develop geology-based hypotheses regarding the potential for additions to oil and gas reserves in priority areas of the United States, focusing on the distribution, quantity, and availability of oil and natural gas resources. The USGS has recently completed an assessment of the undiscovered coalbed gas potential of the Powder River Basin Province of Wyoming and Montana (USGS Province 5033). The Powder River Basin Province is a priority province for the National Assessment because of its potential for significant coalbed gas resources.
The assessment of this province is based on geologic principles and uses the total petroleum system concept. The geologic elements of a total petroleum system include hydrocarbon source rocks (source rock maturation, hydrocarbon generation and migration), reservoir rocks (stratigraphy, sedimentology, petrophysical properties), and hydrocarbon traps (trap formation and timing). In the Powder River Basin Province, the USGS used this geologic framework to define one total petroleum system and four assessment units within the total petroleum system, and quantitatively estimated the undiscovered coalbed gas resources within each assessment unit.
The volume is one of a series of products resulting from the National Oil and
Gas Assessment project of the U.S. Geological Survey. Inquiries about the CD-ROM
or the project should be addressed to:
Christopher J. Schenk, Project Chief
U.S. Geological Survey
Box 25046, Mail Stop 939
Denver Federal Center
Denver, CO 80225-0046
Telephone: (303) 236-5796
E-mail: schenk@usgs.gov
The Compact Disc-Read Only Memory (CD-ROM) publication is prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Although all data and software published on the CD-ROM are used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, the software, or related materials.
The descriptive and interpretive text chapters of this volume are in PDF format. Use Acrobat Reader 6.0 (installer for Mac and Windows provided on the CD) to access and bring up these chapters.
The PDF chapters are accessible as defined by Section 508 of the Rehabilitation Act. Chapter 3 contains tabular data and graphical images in support of the Powder River Basin Province assessment. The chapter text PDF contains links to the data and images. Data-table files are presented as tab-delimited text files (.tab files), usable in spreadsheet and database software. Graphical and summary-table files are presented as portable document format files (.pdf files).
GIS information is presented in the Spatial folder and its subdirectories that contain the spatial data, documentation, and export files. The Spatial folder also contains the ArcGIS project (up.mxd), the ArcReader project (up.pmf), and a description of the GIS project in both .htm and .pdf formats. The Spatial/Doc folder contains metadata for the Powder River Basin Province spatial data in .htm format. The Spatial/Export folder contains Arc/Info export files (.e00). The Spatial/Geodatabase folder contains an ArcGIS Personal Geodatabase that supplies the Annotation layers to the two GIS projects. The Spatial/Images folder contains images used in both the GIS projects and the Metadata documents. The Spatial/Shape folder contains ArcView/ArcGIS shapefiles used in the two GIS projects.
There are several display options available to view spatial data contained on the CD-ROM:
ArcMap
A customized ArcMap project has been included (DDS69C/SPATIAL/prov33.mxd) to facilitate the display of the data. This project is included on the CD-ROM under the assumption that a large portion of viewers will have access to ArcMap software. While not necessary to view the data, it is expected that the use of this project will lend more functionality to the data. The ArcMap project utilizes relative path names, which is an option when saving the file. To open the project, start ArcMap and navigate to the file location on the CD-ROM (SPATIAL/prov33.mxd).
The ArcMap project utilizes relative path names, which is an option when saving the file. To open the project, start ArcMap and navigate to the file location on the CD-ROM (SPATIAL/prov37.mxd).
ArcReader
If ArcMap software is not available, the ArcMap project has been converted to an ArcReader project (SPATIAL/UP.pmf). ArcReader is free software provided byESRI. The ArcReader project maintains most of the functionality present in the ArcMap project. To open the ArcReader project, download the ArcReader software from ESRI; start ArcReader and navigate to the ArcReader .pmf file on the CD-ROM. This freeware may be downloaded from www.esri.com or follow the link below:
Arcreader can be downloaded for Windows from ESRI’s website http://www.esri.com/software/arcgis/arcreader/download.htmlOther
The spatial data are also provided in the ESRI Shapefile format (SPATIAL/Shape folder) or as ArcInfo 8.3 Export files (see SPATIAL/Export folder), should the user need to view the data in ArcInfo or a non-ESRI application.
When the CD is opened, the following folders appear on the screen:
ACROBAT—contains installer for Acrobat Reader 6.
OPEN_FIRST—from OPEN_FIRST.pdf in this folder, navigate to the ReadMe file, an executive summary, pages of chapter titles, and the GIS data and metadata.
README—you can access the ReadMe file from this folder also.
REPORTS—listing of and links to the chapters, plus the tabular data for chapter 3.
SPATIAL—folder containing files for the GIS data and metadata.
—In other words, there are several routes to the information in this volume.
System RequirementsMAC OS
WINDOWS
Note: Installers for Acrobat Reader 6.0 for Windows and Macintosh platforms are provided on the CD-ROM. Requirements for ArcReader for Windows:
Requirements for ArcView 8.x for Windows:
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