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Carbonates and Evaporites

, Volume 9, Issue 1, pp 89–94 | Cite as

Case histories of isostatic factor variations along carbonate buildups

  • M. A. Perlmutter
  • I. Lerche
Article
  • 19 Downloads

Abstract

A simple procedure for estimating the fraction of the mantle response that is actually isostatic is used here with four carbonate buildups to provide variations of the isostatic fraction along the buildups. In all cases it is found that the fraction is small compared to that needed to allow isostasy to be the dominant component. Tectonic variations, sea-level effects, and compaction of underlying substrates after carbonate deposition all contribute to the non-isostatic response. In addition, the relative variation of the equivalent isostatic factor along each carbonate buildup is shown to be a direct consequence of changes in tectonism, sea-level and/or compaction with lateral position. These identifications are made through use of the general geologic description of the region for each buildup. The isostatic factor method is thus shown to provide a simple and powerful procedure for identifying not only the over-all non-isostatic response but also variations of the non-isostatic factors along the buildups.

Keywords

Cretaceous Devonian Evaporite Carbonate Platform Fiducial Mark 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 1994

Authors and Affiliations

  • M. A. Perlmutter
    • 1
  • I. Lerche
    • 2
  1. 1.Exploration and Production Technology DepartmentTexaco, Inc.Houston
  2. 2.Department of Geological ScienceUniversity of South CarolinaColumbia

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