Quantitative mineralogy and distributions of minerals of the Green River Formation, Piceance Creek Basin, western Colorado
Over thirty-five minerals have been identified in the Green River formation of the Piceance Creek Basin, using quantitative X-Ray Diffraction (XRD) bulk analysis. Fifteen major phases occur at over 5 weight per cent average in 117 samples spanning the thickness of the formation. Integrated data from cores, outcrops, and the USGS represent two lacustrine depositional environments: basin margin shallow water and basin center deep water. Results are presented in a stratigraphic framework of six lake stages. Mineral distributions support a permanently stratified saline lake model characterized by a ...
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