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The Cretaceous-Paleocene Boundary in the Subsurface Campeche Shelf, Southern Gulf of Mexico

By
Abelardo Cantú-Chapa
Abelardo Cantú-Chapa
Instituto Politécnico Nacional, Mexico City, Mexico
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Román Landeros-Flores (deceased)
Román Landeros-Flores (deceased)
Petróleos Mexicanos, Ciudad del Carmen,Campeche, Mexico
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Published:
January 01, 2001

Abstract

The Cretaceous-Paleocene boundary on the Campeche Shelf is established with plank-tonic foraminiferal biostratigraphy from core and chip samples and is correlated with gamma-ray well logs. The Campanian-Maestrichtian Cantarell Formation is herein formally described as a breccia formed of calcareous or dolomitized fragments cemented by micrite. Its age is established using Globotruncana species. The Abkatun Formation is formally described as brown shale and shaly limestone that contains Parvularugoglobigerina trinidadensis and Pa. pseudobulloides of the lower Paleocene. The upper Paleocene is represented by greenish-gray shale that contains Morozovella velascoensis, M. formosa formosa, M. aragonensis, and Globoanomalina pseudomenardii.

The broad regional distribution and distinctive lithology of the Cantarell and Abkatun Formations allow them to be differentiated from overlying and underlying formations. The boundary between the lower and upper Paleocene is conformable.

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Contents

Memoir - AAPG

The Western Gulf of Mexico Basin: Tectonics,Sedimentary Basins, and Petroleum Systems

Claudio Bartolini
Claudio Bartolini
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Richard T. Buffler
Richard T. Buffler
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Abelardo Cantú-Chapa
Abelardo Cantú-Chapa
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American Association of Petroleum Geologists
Volume
75
ISBN electronic:
9781629810638
Publication date:
January 01, 2001

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