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Geologic Atlas of the United States
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Geologic Atlas of the United States
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Now showing items 21-30 of 40
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Cambrian - Red Lion formation; Hasmark formation; Silver Hill formation; Flathead quartzite (1)
Cambrian - Sawatch sandstone (1)
Cambrian - Van Horn sandstone (1)
Carboniferous - Black Hand formation; Cuyahoga formation; Sunbury shale; Berea sandstone; Bedford shale (1)
Carboniferous - Conemaugh formation; Allegheny formation; Pottsville formation; Mauch Chunk formation (1)
Carboniferous - Conemaugh formation; Allegheny formation; Pottsville formation; Mauch Chunk shale; Pocono formation (1)
Carboniferous - Conemaugh formation; Allegheny formation; Vanport limestone; Pottsville formation; Burgoon sandstone; Meadville shale; Cuyahoga formation (1)
Carboniferous - Connoquenessing sandstone ; Sharon shale ; Olean conglomerate ; Cuyahoga formation; Berea sandstone; Knapp formation; Conewango formation; Salamanca conglomerate (1)
Carboniferous - Cutler formation; Rico formation; Hermosa formation; Molas formation; Ouray limestone (1)
Carboniferous - Forelle limestone; Satanka shale; Casper formation (1)
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