Quantitative interpretation of magnetic anomalies and preliminary 3-D modeling of gravity and magnetic fields

Lev Eppelbaum, Boris Khesin, A. Ginzburg, Zvi Ben-Avraham

Research output: Contribution to journalMeeting Abstractpeer-review


Quantitative interpretation of magnetic anomalies was carried out with special methods (modifications of tangent and characteristic point method) developed for difficult conditions: oblique magnetization, rugged relief and an unknown level of the normal field. With application of these methods the depths of upper edges of intrusive bodies, their magnetization and geometry have been determined. Also the magnetic inclination of these bodies has been estimated. For instance, the calculated depth of the upper edge for magnetized intrusive bodies in the northern part of Lake Kinneret is 400-800m, and the magnetization is 0.007-0.012 SI Preliminary 3-D modeling of gravity and magnetic fields by the use of new improved version of GSFC program has been conducted. The program has been designed for computing the field of Ag (Bouguer, free-air or observed value anomalies), T, Z, X, Y and as well as second derivatives of the gravitational potential under conditions of rugged relief and inclined magnetization. The geological space may be approximated by 3D, semi-infinite bodies and unlimited along the strike, all consisting of fragments with polygonal contours in the vertical section. The results of a combined 3-D gravimetric and magnetic interpretation of a few models of deep structure are presented.
Original languageEnglish
Pages (from-to)35
Number of pages1
JournalIsrael Geological Society Annual Meeting
StatePublished - 1992
EventIsrael Geological Society, Annual Meeting - Ashqelon, Israel
Duration: 30 Mar 19921 Apr 1992


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