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Book Chapter

Canyon San Fernando, Mexico: A Deep-water, Channel-levee Complex Exhibiting Evolution from Submarine Canyon—Confined to Unconfined

By
Mason Dykstra
Mason Dykstra
1
Institute for Crustal Studies, University of California, Santa Barbara
,
Santa Barbara, California, USA
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Ben Kneller
Ben Kneller
2
Department of Geology and Petroleum Geology, University of Aberdeen
,
Aberdeen, United Kingdom
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Published:
January 01, 2008

Abstract

The outcrops are located on the Pacific coast of Baja California, Mexico. They comprise a 1-km (3300-ft)-thick portion of the Upper Rosario Formation, an Upper Cretaceous slope succession that consists of hemipelagites and gravity-current deposits. In the Canyon San Fernando area, the Upper Rosario consists of the fill of a midslope submarine canyon overlain by a genetically related, unconfined channel-levee complex. Deposition occurred over approximately 1.6 million years, a time-scale consistent with a third- order sea-level cycle. Paleocurrent directions and paleogeographic reconstructions demonstrate that these channel systems flowed to the south-southwest on a west-southwest facing continental margin, indicating that channelized transport was obliquely downslope. The orientation of the channel systems was probably pinned by the location of a fault trending oblique to the slope.

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Contents

AAPG Studies in Geology

Atlas of Deep-Water Outcrops

Tor H. Nilsen
Tor H. Nilsen
Desceased
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Roger D. Shew
Roger D. Shew
University of North Carolina
Wilmington, North Carolina
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Gary S. Steffens
Gary S. Steffens
Shell International E&P
Houston, Texas
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Joseph R. J. Studlick
Joseph R. J. Studlick
Maersk Oil America Inc.
Houston, Texas
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American Association of Petroleum Geologists
Volume
56
ISBN electronic:
9781629810331
Publication date:
January 01, 2008

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