Category:Permian to upper triassic sedimentary rocks in Alaska (Beaufortian and Ellesmerian Sequences)
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This category has the following 2 subcategories, out of 2 total.
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Media in category "Permian to upper triassic sedimentary rocks in Alaska (Beaufortian and Ellesmerian Sequences)"
This category contains only the following file.
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USGS Balanced Section.png 2,735 × 974; 483 KB