Analysis of geomagnetic field anomalies in the Leptokarya area, NE Greece

Abstract

Plutonic rocks intrude the metamorphic basement rocks of the Rhodope massif. Aeromagnetic data from a 1966 survey of Macedonia and Thrace were recompiled, processed and used in the present study to interpret the anomalies associated with the Leptokarya granite. The data were inverted by means of a terracing technique that defines separate domains of uniform distribution of physical properties causing magnetic anomalies. The anomalies were separated in the wavenumber domain. The sources of the short-wavelength anomalies were interpreted as granitic domes. The aeromagnetic data were differentially upward continued to the constant altitude of 3275 m. The magnetic field produced from this procedure was used to interpret the long-wavelength part of the Leptokarya anomalies.