Saturday, December 7, 2013

Mancos shell: Insights by Ivan Lasater

Mancos Shale Insights by Ivan Lasater

The Mancos Shell represents a major area of development for the Oil and Gas industry in the Western UNited states. We'll see job creation and industry rises consistently for the next several years as we begin to tap this vital and robust resource. Economic movement across the UNited States is shifting to accommodate these trends.

The Mancos Shale or Mancos Group is an Upper Cretaceous geologic formation of the Western United States dominated by mudrock that accumulated in offshore and marine environments of the Cretaceous North American Inland Sea. The Mancos was deposited during the Cenomanian through Campanian ages, approximately from 95 Ma to 80 Ma. 

The Mancos Shale was first described by Cross and Purington in 1899 and was named for exposures near the town of Mancos, Colorado. Stratigraphically the Mancos Shale fills the interval between the Dakota Group and the Mesa Verde Group.



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