University of Texas at Austin

Fox Hills, Lower Hell Creek, Powder River Basin (16)

Comments on Geologic Parameters

16 Rock Mineralogy:

Fox Hills mineralogy data from X-ray diffraction analysis were presented in Henderson (1985; his tables 18, 19). Dominant minerals in the Fox Hills Sandstone are quartz, albite, microcline, muscovite, calcite, and dolomite. Clay cements consist of kaolinite, smectite, and chlorite.

16 Reference:

Henderson, T., 1985, Geochemistry of ground-water in two sandstone aquifer systems in the northern Great Plains in parts of Montana and Wyoming: U. S. Geological Survey, Professional Paper 1402-C, p. C1-C84.

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