Submarine canyon deposits, central California coast, and their possible relation to an Eocene low sea-level stand

Seiders, Victor M.; Joyce, James M.

doi:10.3133/b1539

1984

DOI: 10.3133/b1539

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Submarine canyon deposits, central California coast, and their possible relation to an Eocene low sea-level stand

Victor M. Seiders¹,

James M. Joyce²

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2006

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Facies, Architecture, and Origin of a Reservoir-Scale Sand-Rich Succession Within Submarine Canyon Fill: Insights from Wagon Caves Rock (Paleocene), Santa Lucia Range, California, U.S.A.

Anderson

Graham

Hubbard

2006

Journal of Sedimentary Research

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Large submarine canyons incise most continental margins, but outcrops of comparably sized ancient examples are relatively rare. A preserved cross section of a filled Cretaceous-Paleocene submarine canyon, tens of kilometers wide by hundreds of meters deep and cut into granitic basement of the Salinian block, is exposed in the Santa Lucia Range of central coastal California. The exposure allows an opportunity for the detailed analysis of associated sand-rich deposits analogous to one type of petroleum reservoir. A succession of coarse-grained high-density turbidity current deposits present at Wagon Caves Rock (WCR), a 0.5 km 2 mesa in the Indians Ranch area, is part of a lenticular sandstone body up to 75 m thick and several kilometers wide that accumulated within the confines of the submarine canyon. The facies architecture of the outcrop records canyon axial channel deposition in the middle reaches of the submarine canyon system. The uppermost beds at WCR record the catastrophic failure of the submarine-canyon wall, which was associated with the termination of coarse clastic deposition in the area. The modern Monterey submarine canyon, which incises Salinian block basement identical to that cut by the ancient canyon, provides a close analog for the depositional setting of the canyon deposits of the Indians Ranch area. The architectural analysis provides insight into facies and stratal architecture within a part of the deep-water slope environment that is relatively poorly known due to limited rock data from canyon successions and the inherent difficulty of recognizing large-scale submarinecanyon deposits in outcrop.

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Facies, Architecture, and Origin of a Reservoir-Scale Sand-Rich Succession Within Submarine Canyon Fill: Insights from Wagon Caves Rock (Paleocene), Santa Lucia Range, California, U.S.A.

Anderson

Graham

Hubbard

2006

Journal of Sedimentary Research

View full text Add to dashboard Cite

show abstract

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Submarine canyon deposits, central California coast, and their possible relation to an Eocene low sea-level stand

Cited by 1 publication

References 2 publications

Facies, Architecture, and Origin of a Reservoir-Scale Sand-Rich Succession Within Submarine Canyon Fill: Insights from Wagon Caves Rock (Paleocene), Santa Lucia Range, California, U.S.A.

Facies, Architecture, and Origin of a Reservoir-Scale Sand-Rich Succession Within Submarine Canyon Fill: Insights from Wagon Caves Rock (Paleocene), Santa Lucia Range, California, U.S.A.

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