Foraminiferal Modeling of Sea-Level Change in the Late Cretaceous of New Jersey
Published:January 01, 1988
Richard K. Olsson, 1988. "Foraminiferal Modeling of Sea-Level Change in the Late Cretaceous of New Jersey", 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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Paleoslope models of foraminifera in the Upper Cretaceous of the New Jersey coastal plain are utilized to estimate paleobathymetric change during cycles of rising and falling sea level. The paleoslope method estimates change in sea level from the distribution of foraminiferal assemblages and species on a baseline parallel to the regional dip. The paleoslope is the restoration of the original depositional slope of the basin. The paleobathymetry of the foraminifera along the paleoslope is estimated from the gradient of the original depositional slope. Application of the paleoslope model to the Campanian of New Jersey indicates a maximum rise of sea level of 90 m and 80 m, respectively, during two cycles of sea-level change. By extension, a paleodepth curve is derived for the other cycles in the Late Cretaceous. Eight cycles are recognized in the Late Cretaceous section of New Jersey.
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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.