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The AAPG/Datapages Combined Publications Database

Utah Geological Association


Hydrocarbon and Mineral Resources of the Uinta Basin, Utah and Colorado, 1992
Pages 257-270

The Origin of Gilsonite Vein Deposits in the Uinta Basin, Utah

B. Monson, J. Parnell


A series of fractures are infilled with veins of the solid bitumen gilsonite in the eastern Uinta Basin. A proposed model for formation involves two distinct stages. Firstly hydrofracturing was caused by elevated pore pressures, probably initiated in the Green River Formation. Secondly the fractures were injected by liquid hydrocarbon, sourced from the Green River Formation, which subsequently solidified to form veins.

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