Inversion of geological and geophysical data sets using genetic algorithms

S. M. Farrell, M. W. Jessell, T. D. Barr

Research output: Contribution to conferenceConference presentation/ephemera

6 Citations (Scopus)

Abstract

A technique is presented for the multiply-constrained inversion of geological and potential field data. This technique speeds up the process of testing simplified kinematic structural models of structural and potential-field data collected by field geologists and geophysicists. The scheme uses pre-existing software (Noddy) to calculate possible solutions, and as the inverse modeling scheme requires flexibility and speed over a potentially large parameter space with many local minima, a genetic programming approach to the global optimization problem is used. The Noddy integrated forward modeling package calculates geometries and potential-field anomalies resulting from a specified geologic structure. These models are then compared to the target data using correlation of potential-field anomaly images to assign the fitness of the model, with the genetic algorithm breeding successive generations of models. Initial testing of the inversion scheme was successful for a spherical plug, and a planar dike.

Original languageEnglish
Pages1404-1406
Number of pages3
Publication statusPublished - 1 Jan 1996
Externally publishedYes
Event1996 Society of Exploration Geophysicists Annual Meeting - Denver, United States
Duration: 10 Nov 199615 Nov 1996

Conference

Conference1996 Society of Exploration Geophysicists Annual Meeting
CountryUnited States
CityDenver
Period10/11/9615/11/96

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Farrell, S. M., Jessell, M. W., & Barr, T. D. (1996). Inversion of geological and geophysical data sets using genetic algorithms. 1404-1406. Paper presented at 1996 Society of Exploration Geophysicists Annual Meeting, Denver, United States.