Category:Old stratigraphic columns of Pennsylvania
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Media in category "Old stratigraphic columns of Pennsylvania"
The following 5 files are in this category, out of 5 total.
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AmCyc Anthracite - strata.jpg 559 × 3,022; 206 KB
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Fig 09 Correlation chart of.jpg 1,403 × 695; 134 KB
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FIg 12 Correlation of.jpg 1,236 × 935; 238 KB
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Fig 22 generalized columnar section of Washington County, PA.jpg 794 × 1,744; 129 KB
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Geology of Catawissa Creek at Nescopeck Mountain.PNG 185 × 397; 50 KB