Fracture patterns and their origin in the Upper Devonian Antrim Shale gas reservoir of the Michigan basin: A review

Robert T. Ryder

Open-File Report 96-23

Figure 3 Map of part of Otsego County, Michigan showing location of Antrim Shale gas wells used for fracture studies by Cain (1991), Decker and others (1992), Caramanica (1993), Dellapenna (1991) and Dellapenna and Harrison (1993).

Created by the EERT WWW Staff.

U.S. Department of the Interior, U.S. Geological Survey
URL: http://pubs.usgs.gov/of/1996/of96-023/figure3.htm
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