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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 17 (1933)

Issue: 4. (April)

First Page: 375

Last Page: 396

Title: Pre-Pennsylvanian Stratigraphy of Front Range in Colorado

Author(s): A. E. Brainerd (2), H. L. Baldwin, Jr. (3), I. A. Keyte (4)


This paper is a review of the pre-Pennsylvanian stratigraphy of the Front Range in Colorado.

The Cambro-Ordovician Manitou formation, as originally described, has been subdivided into a restricted Manitou of Cambro-Ordovician age, a Devonian member herein called the Williams Canyon limestone, and the Madison of Mississippian age. The term Millsap has been eliminated as a term for the lower Mississippian. A more complete description of the various unconformities is given.

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