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About: St. Peter Sandstone     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:MilitaryUnit, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingyago:WikicatOrdovicianGeologicFormationsyago:Abstraction100002137yago:Arrangement107938773yago:Formation108426461yago:Group100031264yago:WikicatGeologicFormationsOfTheUnitedStatesmilitary unit New Facet based on Instances of this Class

The St. Peter Sandstone is an Ordovician geological formation. It belongs to the Chazyan stage of the Champlainian series in North American regional stratigraphy, equivalent to the late Darriwilian global stage. This sandstone originated as a sheet of sand in clear, shallow water near the shore of a Paleozoic sea and consists of fine-to-medium-size, well-rounded quartz grains with frosted surfaces. The extent of the formation spans north–south from Minnesota to Arkansas and east–west from Illinois into Nebraska and South Dakota. The formation was named by Owen (1847) after the Minnesota River, then known as the St. Peter River. The type locality is at the confluence of the Mississippi and Minnesota Rivers near Fort Snelling, Minnesota. In eastern Missouri the stone consists of quartz sand