Preliminary evaluation of the coalbed methane resources of the Gulf Coastal Plain
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Open-File Report↗
Geology topics
L.R. Biewick
Publications and source records attributed to L.R. Biewick.
Calculation of coal resources using ARC/INFO and Earth Vision; methodology for the National Coal Resource Assessment
This report documents a comparison of two methods of resource calculation that are being used in the National Coal Resource Assessment project of the U.S. Geological Survey (USGS). Tewalt (1998) discusses the history of using computer software packages such as GARNET (Graphic Analysis of Resources using Numerical Evaluation Techniques), GRASS (Geographic Resource Analysis Support System), and the vector-based geographic information system (GIS) ARC/INFO (ESRI, 1998) to calculate coal resources within the USGS. The study discussed here, compares resource calculations using ARC/INFO* (ESRI, 1998) and EarthVision (EV)* (Dynamic Graphics, Inc. 1997) for the coal-bearing John Henry Member of the Straight Cliffs Formation of Late Cretaceous age in the Kaiparowits Plateau of southern Utah. Coal resource estimates in the Kaiparowits Plateau using ARC/INFO are reported in Hettinger, and others, 1996.
Open-File Report↗
Geophysical log signatures of lower Tertiary and upper Cretaceous rocks in the Powder River Basin, Wyoming and Montana
No abstract available.
Montana, Wyoming↗
Cross sections showing the reconstructed stratigraphic framework of Paleocene rocks and coal beds in the northern and central Powder River basin, Montana and Wyoming
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IMAP↗