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Stratigraphy, Facies, and Depositional Provinces of the Middle Eocene Domengine Formation, Southern Sacramento Basin

By
Victor B. Cherven
Victor B. Cherven
Exploration Department MOO Resources, Inc.
Los Angeles, California 90024 reprint from: Pac. Sec. SEPM Field Trip Guidebook, 1983
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Published:
January 01, 1984

Abstract

Local middle Eocene tectonic activity within the southern Sacramento Basin divided it into eight deposltlonal provinces during deposition of the Domenglne Formation. These provinces include the 1) Southeastern Channel Area, which grades laterally (southwest) to the 2) Southern Marsh Area and offshore (northwest) to the 3) Northeastern Bar Area. This latter area grades still farther northwest to the relatively stable 4) Northwestern Shelf Area, but was disrupted by active faults Into the subsident 5) Rio Vista Basin and 6) Sherman Island Trough to the west and southwest. This subsldent region was bordered on the south by the 7) Mt. Diablo Uplift and on the west by the 8) Kirby Hills Uplift. The Domenglne can be divided into eight distinct members, not all of which are present in each depositional provinee.

Sedimentary facies within the eight members of the Domengine include 1) upward-fining coarse-to fine-grained sandstone beds, 2) upward-coarsening bar or delta-front/shoreline sandstone beds, 3) foramin perferal shelf shale, 4) carbonaceous marsh deposits, 5) fIaser-bedded subtidal deposits, 6) shelf sandstone, and 7) fluvial conglomerate and sandstone.

The Domengine Formation is probably a tide-wave-dominated deltaic system. Although marine processes were Important in controlling the types and distribution of grain sizes and sedimentary structures, the overall sediment distribution system and resulting formational geometry were controlled by tectonics and subsidence related to the growth of the Stockton Arch, sediment compaction in the Meganos Gorge (submarine canyon), active faulting, and distribution of basin-margin up lifts.

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Contents

SEPM Field Trip Guide

1984 Midyear Meeting San Jose, California

Ralph E. Hunter
Ralph E. Hunter
U. S. Geological Survey
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H. Edward Clifton
H. Edward Clifton
U. S. Geological Survey
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N. Timothy Hall
N. Timothy Hall
Foothill College
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John L. Chin
John L. Chin
U. S. Geological Survey
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SEPM Society for Sedimentary Geology
Volume
3
ISBN electronic:
9781565762787
Publication date:
January 01, 1984

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