Spatial distribution of the Demir Kapija (Macedonia) ophiolite based on geomagnetic data

Abstract

The Demir Kapija ophiolite is the largest outcrop of the East Vardar Zone in Macedonia. The aim of this study was to determine the spatial position of this ophiolite by applying mathematical transformations of geomagnetic data. Analysis of anomaly values of geomagnetic data includes processing data that comprise Z component of the magnetic field. Based on these results, it is concluded that the Demir Kapija ophiolite dips to the east/southeast and that the shape of this body is a plate-like. The spatial position of the Demir Kapija ophiolite suggests that the contact with the adjacent Serbo-Macedonian massif is sub vertical close to the surface, and that this contact becomes less steep with increasing of depth. The obtained data suggest that this part of the East Vardar Zone is present below the Serbo-Macedonian unit.