Open AccessA new 3‐D inversion algorithm for magnetic total field anomalies
Author(s) -
Zeyen Hermann,
Pous Jaume
Publication year - 1991
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1991.tb05703.x
Subject(s) - earth's magnetic field , inversion (geology) , a priori and a posteriori , magnetic anomaly , remanence , geology , potential field , geophysics , algorithm , magnetization , interpretation (philosophy) , magnetic field , mathematics , seismology , physics , computer science , philosophy , epistemology , quantum mechanics , tectonics , programming language
SUMMARY A new 3‐D inversion algorithm for the interpretation of magnetic total field anomalies is presented. Using Bayes' theorem the algorithm allows the inclusion of a priori information of model parameters and to treat this information as well as the measured data in a probabilistic manner. In this way a rather fast and stable method is obtained. The models consist of a system of vertical rectangular prisms with its top, base, susceptibility and remanent magnetization intensity and direction as variable parameters. Several synthetic examples show the possibilities that the algorithm offers. Finally the interpretation of an anomaly measured in NE Spain is presented, which shows a strong remanent magnetization component oblique to the local geomagnetic field.