Author/Authors :
Boroomand، Mohammad Ali نويسنده M.Sc. Student of Geodesy, Department of Surveying &Geomatics Engineering, College of Engineering, University of Tehran, Tehran, Iran Boroomand, Mohammad Ali , Safari، Abdolreza نويسنده Associate Professor, Department of Surveying &Geomatics Engineering, College of Engineering, University of Tehran, Tehran, Iran Safari, Abdolreza , Bahroudi، Abbas نويسنده Department of Engineering, University of Tehran, Tehran, Iran Bahroudi, Abbas
Abstract :
Magnetic susceptibility has been extensively used to determine the magnetic properties of rocks for
different applications, such as hydrocarbon or mineral explorations. This magnetic quantity can be directly
measured in an accurate but time-consuming operation, or it can be mathematically approximated using a
reliable procedure to achieve a desired accuracy. The Poisson theory is one of the most well-known
approaches which provide a meaningful relationship between the earth’s gravity and magnetic fields to
derive the magnetic susceptibility. In this approach, the reliability and efficiency of the derived magnetic
susceptibility depends on the method of computation of the gravity gradient tensor. We investigated two
different methods of determination of gradient tensor; different distance method and Fourier transform
technique. From the investigation, the Fourier transform method was more consistent with the geological
features which led to more reliable information required for mineral explorations. The performance of the
Poisson theory, the different distance method, and the Fourier transform was investigated in the coastal
Fars, in Iran. This was highly disposing for geological and mineral features. Salt domes in the study area
were detected and results compared with the available geological map.
