Seismic stratigraphic and geohistory analysis of Tertiary strata from the continental shelf off New Jersey; Calculation of eustatic fluctuations from stratigraphic data
Published:January 01, 1988
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S. M. Greenlee, F. W. Schroeder, P. R. Vail, 1988. "Seismic stratigraphic and geohistory analysis of Tertiary strata from the continental shelf off New Jersey; Calculation of eustatic fluctuations from stratigraphic data", The Atlantic Continental Margin, Robert E. Sheridan, John A. Grow
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Observations of geologically synchronous basinward shifts in coastal onlap patterns on seismic reflection profiles, from varied tectonic settings and in widespread areas, led Vail and others (1977) to suggest the use of these shifts as a means of global correlation. Sea-level curves based on the interpretation of strati- graphic data are being rigorously tested on the eastern U.S. Continental Margin. The availability of outcrop, well, and seismic data in this region, as well as the general lack of structural overprint over much of the margin, has resulted in its being a focus of research on the effects of sea-level fluctuations on the sedimentary development of basins.
Here we present the results of a study in which we apply seismic stratigraphic and geohistory analysis techniques to data from the Baltimore Canyon trough to interpret sea-level changes during the Tertiary. We first develop a stratigraphic framework for the study area through the interpretation of a regional grid of seismic reflection data tied to available well control. We then use the ages of the major depositional sequence boundaries at the COST B-2 well site to predict the thermotectonic subsidence of the basin since the Early Jurassic and to estimate long-term sea- level changes. Finally, we analyze the Tertiary sedimentary patterns expressed in seismic and well data to derive a detailed curve of eustatic changes of sea level.
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The Atlantic Continental Margin
This synthesis covers stratigraphy, depositional processes, and geophysical interpretation of the major onshore and offshore marginal basins from Maine to the Bahamas, and includes an up-to-date review of thinking on regional tectonic history. Additional chapters discuss the theoretical aspects of thermal evolution, subsidence, and seismic stratigraphy as applied to this region. Geological resources including petroleum, water, sand and gravel, hard minerals, and heat flow are reviewed, and environmental hazards such as seismicity, coastal erosion, waste disposal and submarine instability as it relates to site of drilling platforms and mining are evaluated. A summary chapter reviews areas of controversy and suggests key topics for research.