|Fox Hills - Lower Hell Creek, Powder River Basin
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.
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.