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Geologist examines immature, oil-prone source rocks in the Upper Cretaceous Seabee Formation on Umiat Mountain along the Colville River. Mudstones in the Seabee Formation grade upward into sandstones in the Tuluvak Formation at the top of the bluff. Location ~100 mi. southwest of Prudhoe Bay.
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Geologist examines immature, oil-prone source rocks in the Upper Cretaceous Seabee Formation on Umiat Mountain along the Colville River. Mudstones in the Seabee Formation grade upward into sandstones in the Tuluvak Formation at the top of the bluff. Location ~100 mi. southwest of Prudhoe Bay.