Deconvolution applied to aeromagnetic data of the Debbagh massive, neritic Constantinois (north-eastern Algeria)

The Debbagh massive represents the most important massive of the eastern Constantinois neritic zone (NE Algeria) and is characterized by its potential mining resources, with two types of mineralization (kaolin and gossans). It consists of autochthonous formations of Triassic to Miocene age, which are hosted in carbonate formations from the Cretaceous. In the present study, Euler deconvolution has been applied to real aeromagnetic anomalies data of the Debbagh area reduced to the pole to locate the magnetic sources and estimate their depths using a structural index of 0.25 for contacts and 1.25 for faults, a moving window size (grid points) of 11x11 cells and a tolerance of 15%. The depths obtained by Euler solutions range from 0.047 to 5 km for contacts, and about 0.128 to 8 km for faults. The synthesis of the results deduced from the modelling of aeromagnetic data has tracked and highlighted major events, as well as major tectonic and lithological contacts, and delineated the magnetic sources of this area.