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1. 2. Petroleum System Events Chart. North Slope, Alaska. Geologic Time-Scale. 400. 300. 200. 100. Paleozoic. Mesozoic. Cenozoic. Petroleum System Events. D. M. P. P. T R. J. K. P e. N. Source Rock. Reservoir Rock. Seal Rock. Overburden. Trap Formation.
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1 2 Petroleum System Events Chart North Slope, Alaska Geologic Time-Scale 400 300 200 100 Paleozoic Mesozoic Cenozoic Petroleum System Events D M P P TR J K Pe N Source Rock Reservoir Rock Seal Rock Overburden Trap Formation Generation, Migration, and Accumulation Preservation Critical Moment 1. Western North Slope 2. East-central North Slope Bird, 1994