Different types of induction measurements (relative telluric frequency soundings, magnetotelluric frequency soundings, geomagnetic deep sounding) indicated a characteristic conductivity anomaly in West Hungary (Dunántúl). The conducting layer rises to a depth of 7 km in the centre of the anomaly with a horizontal conductivity of S = 10,000 μ-1 according to M.T.S, while at the flanks, it sinks to depths of several tens of kilometres. Accordingly, ΔZ is 0 in the centre of the anomaly (high-cut ΔZ), and in the flanks the Wiese-vector points outwards from the anomaly (direction anomaly). Therefore, this is an excellent example of both types of Uyeda and Rikitake's conductivity anomalies. In the last part, the author discusses some problems of the interpretation of the anomaly.
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Physics and Astronomy (miscellaneous)
- Space and Planetary Science