Oelrichs folio, South Dakota-Nebraska
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DescriptionOelrichs folio, South Dakota-Nebraska
SubjectCarboniferous - Minnekahta limestone; Opeche formaltion; Minnelusa sandstone
Neogene - Terrace conglomerate
Paleogene - Brule clay; Chadron sand
Cretaceous - Pierre shale; Niobrara formation; Carlile shale; Greenhorn limestone; Graneros shale; Dakota sandstone; Fuson formation; Minnewaste limestone; Lakota formation
Jurassic - Unkpapa sandstone; Sundance formation; Spearfish shale
Triassic - - Unkpapa sandstone; Sundance formation; Spearfish shale
Geology -- United States --Maps
Darton, Nelson Horatio, 1865-1948. (1902). Oelrichs folio, South Dakota-Nebraska. Geological Survey (United States). Available electronically from
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