Improved inversion of geopotential field anomalies for lithospheric investigations.

R. R.B. Von Frese, D. N. Ravat, W. J. Hinze, C. A. McGue

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


Instabilities and the large matrices which are common to inversions of regional magnetic and gravity anomalies often complicate the use of efficient least-squares matrix procedures. Inversion stability profoundly affects anomaly analysis, and hence it must be considered in any application. To obtain accurate and efficient large-scale inversions of anomaly data, a procedure based on the super-position principle of potential fields may be used. This method involves successive inversions of residuals between the observations and various stable model fields which can be readily accommodated by available computer memory. Integration of the model fields yields a well-resolved representation of the observed anomalies corresponding to an integrated model which normally could not be obtained by direct inversion because the memory requirements would be excessive. MAGSAT magnetic anomaly inversions over India demonstrate the utility of these procedures for improving the geologic analysis of potential field anomalies. -from AuthorsDept. of Geology & Mineralogy, The Ohio State University, Columbus OH 43210, USA.

Original languageEnglish
Pages (from-to)375-385
Number of pages11
Issue number3
StatePublished - Mar 1988

ASJC Scopus subject areas

  • Geochemistry and Petrology


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