Joint inversion of EM and magnetic data for near‐surface studies | Zendy

Christophe Benech | Zendy; Alain Tabbagh | Zendy; Guy Desvignes | Zendy

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Joint inversion of EM and magnetic data for near‐surface studies

Author(s) -

Christophe Benech,

Alain Tabbagh,

Guy Desvignes

Publication year - 2002

Publication title -

geophysics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.178

H-Index - 172

eISSN - 1942-2156

pISSN - 0016-8033

DOI - 10.1190/1.1527074

Subject(s) - inversion (geology) , geology , magnetic survey , joint (building) , prospecting , magnetic anomaly , geophysics , magnetic susceptibility , synthetic data , mineralogy , electromagnetics , remote sensing , geodesy , seismology , algorithm , computer science , mining engineering , physics , engineering physics , architectural engineering , quantum mechanics , engineering , tectonics

International audienceMagnetic and electromagnetic measurements are influenced by magnetic susceptibility and, thus, are widely used in geophysical surveys for archeology or pedology. To date, the data inversion is performed separately. A filtering process incorporating both types of data is presented here. After testing the algorithm with synthetic data, the algorithm is used in several case studies in archeological prospecting. This approach presents two advantages: establishing the presence of remanent mag-netizations (viscous or thermoremanent), and achieving more refined depth analysis of the anomaly

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