Journal
GEOPHYSICAL JOURNAL INTERNATIONAL
Volume 201, Issue 1, Pages 267-275Publisher
OXFORD UNIV PRESS
DOI: 10.1093/gji/ggv016
Keywords
Numerical solutions; Inverse theory; Gravity anomalies and Earth structure
Categories
Funding
- National Natural Science Foundation of China [41174019, 41374024, 11173050, 11373059]
Ask authors/readers for more resources
In this paper, we present a method for incorporating prior geological information into potential field data inversion problem. As opposed to the traditional inverse algorithm, our proposed method takes full advantage of prior geological information as a constraint and thus obtains a new objective function for inversion by adding Lagrangian multipliers and slack variables to the traditional inversion method. These additional parameters can be easily solved during iterations. We used both synthetic and observed data sets to test the stability and validity of the proposed method. Our results using synthetic gravity data show that our new method predicts depth and density anomalies more efficiently and accurately than the traditional inversion method that does not include prior geological constraints. Then using observed gravity data in the Three Gorges area and geological constraint information, we obtained the density distribution of the upper and middle crust in this area thus revealing its geological structure. These results confirm the proposed method's validity and indicate its potential application for magnetism data inversion and exploration of geological structures.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available