Depositional Sequences and Stratigraphic Gaps on Submerged United States Atlantic Margin
C. Wylie Poag, John S. Schlee, 1984. "Depositional Sequences and Stratigraphic Gaps on Submerged United States Atlantic Margin", Interregional Unconformities and Hydrocarbon Accumulation, John S. Schlee
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Seismic reflection profiles correlated with deep stratigraphic test wells reveal a series of depositional sequences that can be traced through the three major sedimentary basins of the submerged U.S. Atlantic margin. These sequences are bounded in large part by unconformities whose stratigraphic positions are similar to those predicted by Vail’s model of relative coastal onlap and eustatic sea-level change. The Mesozoic depositional sequences nearly match the supercycles of Vail’s model, but the Cenozoic record indicates marked variability among the basins. Little doubt exists that these depositional sequences are the product of sea-level fluctuations modulated by changing depositional rates and variable rates of basin subsidence.
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The result of a session at the 1981 AAPG Annual Meeting, this volume attempts to document global age and magnitude of sea-level shifts, and ultimately, the cause of the short-term shifts. Twelve individual papers were published on topics such as: comparative anatomy of cratonic unconformities; relation of unconformities, tectonics, and sea-level change; outcrop features and origin of basin margin unconformities; significant unconformities and the hiatuses represented by them; regional unconformities and depositional cycles; relative sea-level changes during the Middle and Late Cretaceous; Late Oligocene-Pliocene transgressive-regressive cycles of sedimentation; oxygen-isotope record of ice-volume history; oceanic ridge volumes and sea-level change; Jurassic unconformities, chronostratigraphy, and sea-level changes; Cenozoic regional arosion of the Abyssal sea floor; and depositional sequences and stratigraphic gaps on submerged United States Atlantic margin.