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Magnetic susceptibility as a tool for mineral exploration (Case study: Southern of Zagros Mountains)

عنوان مقاله: Magnetic susceptibility as a tool for mineral exploration (Case study: Southern of Zagros Mountains)
شناسه (COI) مقاله: JR_IJMGE-49-1_005
منتشر شده در شماره 1 دوره 49 فصل June در سال 1394
مشخصات نویسندگان مقاله:

Mohammad Ali Boroomand - M.Sc. Student of Geodesy, Department of Surveying &Geomatics Engineering, College of Engineering, University of Tehran, Tehran, Iran
Abdolreza Safari - Associate Professor, Department of Surveying &Geomatics Engineering, College of Engineering, University of Tehran, Tehran, Iran
Abbas Bahroudi - Assistant Professor, Faculty of Mineral Engineering, College of Engineering,University of Tehran, Tehran, Iran

خلاصه مقاله:
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.

کلمات کلیدی:
fourier transforms, gravity gradient tensor, magnetic susceptibility, salt glacier

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/488121/