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Hypotheses of oil-shale genesis, Green River Formation, northeast Utah, northwest Colorado, and southwest Wyoming | 1985 | oil shale; Green River Formation; tar sandstone | In the six decades or so of oil-shale studies on the Green River Formation (Paleocene/Eocene) in northeast Utah, northwest Colorado, and southwest Wyoming, two alternative hypotheses for the paleoenvironment have dominated the literature: (1) a stratified lake in which anaerobic conditions in the hy... |