Abstract:
A study of two magnetic anomalies in eastern Italy is presented. It consisted of three phases: the total magnetization direction of the sources was first estimated; then the depth of the sources was calculated by means of a spectral analysis; finally a 3D interpretation was carried out, after selection of the best geological model. A direction of the source total magnetization very different from that of the present inducing field was detected. The sources were estimated to be at an intermediate to deep crustal depth. A geological model involving deep intrusions along crustal fractures was favoured. The most probable cause of these abnormal magnetic anomaly shapes is here identified with a clockwise rotation of crustal blocks.