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Inversion of potential-field data by iterative forward modeling in the wavenumber domain

Jianghai Xia and Donald R. Sprowl
Inversion of potential-field data by iterative forward modeling in the wavenumber domain
Geophysics (January 1992) 57 (1): 126-130

Abstract

Direct inversion of potential-field data is hindered by the nonuniqueness of the general solution. Convergence to a single solution can only be obtained when external constraints are placed on the subsurface geometry. Two such constrained geometries are dealt with here: a single, nonplanar interface between two layers, each of uniform density or magnetization, and the distribution of the density or magnetization contrast within a single layer. Both of these simple geometries have geologic application. Inversion is accomplished by iterative improvement in an initial subsurface model in the wavenumber domain. The inversion process is stable and is efficient for usage on large data sets. Forward calculation of anomalies is by Parker's (1973) algorithm (Blakely, 1981).


ISSN: 0016-8033
EISSN: 1942-2156
Coden: GPYSA7
Serial Title: Geophysics
Serial Volume: 57
Serial Issue: 1
Title: Inversion of potential-field data by iterative forward modeling in the wavenumber domain
Affiliation: Kans. Geol. Surv., Lawrence, KS, United States
Pages: 126-130
Published: 199201
Text Language: English
Publisher: Society of Exploration Geophysicists, Tulsa, OK, United States
References: 21
Accession Number: 1992-003668
Categories: Applied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Presented at the 60th annual int. meeting. Soc. Explor. Geophys.
Illustration Description: illus. incl. sketch maps
Secondary Affiliation: Univ. Kans., USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States
Update Code: 1992
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