Outcrops, Fossils, Geophysical Logs, and Tectonic Interpretations of the Upper Cretaceous Frontier Formation and Contiguous Strata in the Bighorn ... Scientific Investigations Report 2009-5256 - Couverture souple

Merewether, E A; Cobban, W A; Tillman, R W

 
9781288863662: Outcrops, Fossils, Geophysical Logs, and Tectonic Interpretations of the Upper Cretaceous Frontier Formation and Contiguous Strata in the Bighorn ... Scientific Investigations Report 2009-5256

Synopsis

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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Autres éditions populaires du même titre

9781296051716: Outcrops, Fossils, Geophysical Logs, and Tectonic Interpretations of the Upper Cretaceous Frontier Formation and Contiguous Strata in the Bighorn ... Scientific Investigations Report 2009-5256

Edition présentée

ISBN 10 :  1296051714 ISBN 13 :  9781296051716
Editeur : Scholar's Choice, 2015
Couverture souple