Gravity modeling of 21/2-D sedimentary basins - A case of variable density contrast

V. Chakravarthi, N. Sundararajan

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

An algorithm and associated codes are developed to determine the depths to bottom of a 21/2-D sedimentary basin in which the density contrast varies parabolically with depth. This algorithm estimates initial depths of a sedimentary basin automatically and modifies thereafter appropriately within the permissible limits in an iterative approach as described in the text. Efficacy of the method as well as the code is illustrated by interpreting a gravity anomaly of a synthetic model. Further, the applicability of the method is exemplified with the derived density-depth model of the Godavari sub-basin, India to interpret the gravity anomalies due to the basin. Interpretations based on parabolic density profile are more consistent with existing geological information rather than with those obtained with constant density profile.

Original languageEnglish
Pages (from-to)820-827
Number of pages8
JournalComputers and Geosciences
Volume31
Issue number7
DOIs
Publication statusPublished - Aug 2005

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Keywords

  • Basement
  • Gravity anomaly
  • Modeling
  • Parabolic density profile
  • Sedimentary basin

ASJC Scopus subject areas

  • Information Systems
  • Computers in Earth Sciences

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