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By: James Wixson & Andy Hilfirty . Appalachian Mountain Building. Orogeny?. Orogeny-is the natural process of mountain building. URL:http://en.wikipedia.org/wiki/Orogeny.
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By: James Wixson & Andy Hilfirty Appalachian Mountain Building
Orogeny? Orogeny-is the natural process of mountain building. URL:http://en.wikipedia.org/wiki/Orogeny