BabelNet

bn:01182852n

Noun Named Entity

No term available

The Niobrara Formation, also called the Niobrara Chalk, is a geologic formation in North America that was deposited between 87 and 82 million years ago during the Coniacian, Santonian, and Campanian stages of the Late Cretaceous. Wikipedia

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Sources

IS A

formação geológica

HAS PART

Smoky Hill Chalk

Fort Hays Limestone Member

COUNTRY

Estados Unidos

LOCATED IN THE ADMINISTRATIVE TERRITORIAL ENTITY

Minnesota

Montana

UNDERLIES

Pierre Shale