Early Cretaceous Sea-Level Curves, Gulf Coast and Southeastern Arabia
Published:January 01, 1988
R. W. Scott, S. H. Frost, B. L. Shaffer, 1988. "Early Cretaceous Sea-Level Curves, Gulf Coast and Southeastern Arabia", Sea-Level Changes: An Integrated Approach, Cheryl K. Wilgus, Bruce S. Hastings, Henry Posamentier, John Van Wagoner, Charles A. Ross, Christopher G. St. C. Kendall
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Three surface and subsurface sections of Lower Cretaceous strata from the Gulf Coast are correlated with three comparable sections in Oman. Detailed fossil ranges and graphic correlation methods resulted in a biostratigraphic data base that could be related to the geologic time scale.
Two events of relative sea-level rise are synchronous in the Gulf Coast basin and the southeastern Arabian platform and may represent eustatic sea-level rises. The intra-Aptian rise began about 115.8 Ma and in many places is represented by a sharp lithologic change, by submarine hardgrounds, or by onlap. Deep-water deposition resumed from 115.2 to 113.9 Ma. The intraCenomanian rise began approximately 94.6 Ma. In Oman, this rise is locally represented by a submarine hardground that formed after drowning of a carbonate shelf. In the updip Gulf Coast, mid-Cenomanian paralic and deltaic sediments were deposited upon an Albian-early Cenomanian shallow carbonate shelf. In the downdip Gulf Coast, this event either is not recognizable in deep-water muds or is represented by drowning of shallow-water carbonates. A third, intra-Albian event at 104.3 Ma may also be a eustatic sea-level rise; however, it needs to be identified in other tectonic settings.
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Sea-Level Changes: An Integrated Approach
Sea-Level Changes: An Integrated Approach - In October 1985, SEPM sponsored a four-day conference entitled ?Sea-Level Changes ? An Integrated Approach.? The purpose of the conference was to provide a forum for an interdisciplinary exchange of ideas on sea-level changes and to provide an opportunity for integrating various types of evidence in approaching unresolved issues. The conference was successful in bringing together scientists from industry, academia, and government, representing all of the major geosciences disciplines. Presentations of many new papers, plus significant releases of data that were previously held proprietary, provided fertile ground for discussion. This much-cited volume represents the best of the material presented at the conference. Includes the early ?Vail? chart.