Many
hydrocarbon-bearing reservoirs include cyclic strata, and understanding the
controls can provide important predictive insights. In this study, Sullivan and Sullivan examine the
unconformity-bounded estuarine and fluvial sandstones of middle Eocene Domengine
Formation of the Sacramento basin, California. The results illustrate that tectonism controlled the location
of incised fluvial and estuarine systems that stack vertically and trend
southwest toward the structurally controlled depocenter, but that eustasy
controlled the timing of the regressive-transgressive depositional cyclicity. These results provide a conceptual
model for architecture, thickness trends, and facies distribution in this, and
perhaps other, lowstand river-dominated estuarine units.
Sequence stratigraphy and incised valley architecture of the Domengine Formation, Black Diamond Mines Regional Preserve and the southern Sacramento basin, California, U.S.A. by Raymond Sullivan and Morgan D. Sullivan
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