Aeromagnetic modelling of a compressional contact between the Ionian and pre-Apulian zones, Ionian Islands, Greece

Fotini Maltezou^* and Panagiotis Stefanopoulos^{* *}

^*Hellenic Petroleum S. A. (fmaltezou@hellenic-petroleum.gr).

^{* *}Department of Geology, Patras University, Greece.

(Received 15 March 2002; accepted 11 July 2002)

Abstract: Compressional tectonics and westward directed thrusting took place in western Greece since upper Oligocene times. In addition to that, clockwise rotation has affected the area. The question then arises whether the sedimentary cover alone or the basement as well is affected by these displacement modes. Qualitative interpretation of aeromagnetic maps (a 100 km residual of the reduced to the pole magnetic anomaly map together with the horizontal gradient of the 50 km residual) and two-dimensional quantitative modeling along a magnetic profile are in support of the “basement” deformation which should be taken to represent a valid hypothesis in the deformation history of western Greece.

Key words: Aeromagnetic, Compressional tectonics, Ionian Islands, Greece.