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3038 Hennepin Ave Minneapolis, MN
612-822-4611
Outcrops, Fossils, Geophysical Logs, and Tectonic Interpretations of the Upper Cretaceous Frontier Formation and Contiguous Strata in the Bighorn Basi

Outcrops, Fossils, Geophysical Logs, and Tectonic Interpretations of the Upper Cretaceous Frontier Formation and Contiguous Strata in the Bighorn Basi

Paperback

General Political ScienceGeologyPaleontology

ISBN10: 1296051714
ISBN13: 9781296051716
Publisher: Scholar's Choice
Published: Feb 16 2015
Pages: 58
Weight: 0.21
Height: 0.12 Width: 6.14 Depth: 9.21
Language: English

In the Bighorn Basin of north-central Wyoming and south-central Montana, the Frontier Formation of early Late Cretaceous age consists of siliciclastic, bentonitic, and carbonaceous beds that were deposited in marine, brackish-water, and continental environments. Most lithologic units are laterally discontinuous. The Frontier Formation conformably overlies the Mowry Shale and is conformably overlain by the Cody Shale. Molluscan fossils collected from outcrops of these formations and listed in this report are mainly of marine origin and of Cenomanian, Turonian, and Coniacian ages.

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General Political Science