Category:Igneous rocks in Pennsylvania
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Northern Mariana Islands
Northern Mariana Islands
Subcategories
This category has the following 11 subcategories, out of 11 total.
Media in category "Igneous rocks in Pennsylvania"
The following 3 files are in this category, out of 3 total.
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Kimberlite from the Jurassic of Pennsylvania.jpg 2,639 × 1,862; 4.36 MB
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The Distribution of Ancient Volcanic Rocks along the Eastern Border of North America.pdf 975 × 1,404, 32 pages; 2.99 MB