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Open-File Report 2011–1298

U.S. Geological Survey Information Relevant to the U.S. Geological Survey Assessment of the Middle Devonian Marcellus Shale of the Appalachian Basin Province, 2011

By USGS Marcellus Shale Assessment Team

Thumbnail of and link to report PDF (9.73 MB)Abstract

The U.S. Geological Survey recently assessed the potential for natural gas resources in the Middle Devonian Marcellus Shale of the Appalachian Basin Province. The Marcellus Shale was assessed as a continuous gas accumulation using a methodology identical to that used in the assessment of shale and other continuous-type assessment units throughout the United States. This preliminary report provides some additional geologic information used in the Marcellus Shale assessment.

The Appalachian Basin Province encompasses rocks of the Paleozoic passive margins, the foreland basins, and fold and thrust belts formed during several episodes in the Paleozoic. The Marcellus Shale is one of many marine shales deposited in the area that is now encompassed by the Appalachian Basin Province.

First posted November 23, 2011

For additional information contact:
U.S. Geological Survey
Central Energy Resources Science Center
Box 25046, MS-939
Denver Federal Center
Denver, CO 80225-0046

http://energy.cr.usgs.gov/

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Suggested citation:

USGS Marcellus Shale Assessment Team, 2011, Information relevant to the U.S. Geological Survey assessment of the Middle Devonian Shale of the Appalachian Basin Province, 2011: U.S. Geological Survey Open-File Report 2011–1298, 22 p.



Contents

Introduction

Assessment Methodology

Estimated Ultimate Recovery Distributions

Geologic Data Input Forms for Assessment

References Cited

Figures

Appendix 1. Geologic input data for the assessment of the Foldbelt Marcellus Assessment Unit (50670467)

Appendix 2. Geologic input data for the assessment of the Interior Marcellus Assessment Unit (50670468)

Appendix 3. Geologic input data for the assessment of the Western Margin Marcellus Assessment Unit (50670469)


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