3-D magnetic inversion and satellite imagery for the Um Salatit gold occurrence,Central Eastern Desert,Egypt |
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| Authors: | Hassan Mohamed Hakim Saibi Mohand Bersi Sami Abdelnabi Baher Geith Hamdy Ismaeil Thomas Tindell Hideki Mizunaga |
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| Institution: | 1.Geophysics Department,Egyptian Nuclear Materials Authority,New Cairo,Egypt;2.Department of Geology, College of Science,United Arab Emirates University,Al-Ain,United Arab Emirates;3.Department of Earth Sciences,Ferhat Abbas University,Setif,Algeria;4.Geophysics Department, Faculty of Science,Ain Shams University,Cairo,Egypt;5.Department of Earth Resources Engineering, Faculty of Engineering,Kyushu University,Fukuoka,Japan |
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| Abstract: | The Um Salatit is a gold occurrence situated in the Central Eastern Desert of Egypt. The studied area is characterized by an intensive imbrication zone of serpentinites and metavolcanic rocks. The integrated use of aeromagnetic and spectral reflectance remote sensing data has proved effective for mapping geology related to ore deposits. Spectral reflectance maps have been produced to discriminate various rocks, such as serpentinites, gabbros, and metavolcanic rocks. 3-D inversion of aeromagnetic data acquired over the Um Salatit study area produced a 3-D magnetic susceptibility model showing magnetic bodies surrounded by less magnetic host rock. The magnetic features are elongated ENE-WSW parallel to the major thrust fault and mapped the Um Salatit serpentinized rocks. Remote sensing data allow investigating surficial geological features and mapping the mineralized areas. Remote results, in conjunction with 3-D inversion of aeromagnetic data, demonstrate that gold occurrence in the study area was effectively restricted to the highly magnetic zone interpreted as host rocks. |
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