TY - JOUR ID - 42192 TI - Inversion of Frequency Domain Helicopter Electromagnetic Data for Recognizing Gold Enriched Massive Sulfide Anomaly in Barika Area, West Azerbaijan, Iran JO - Scientific Quarterly Journal of Geosciences JA - GSJ LA - en SN - 1023-7429 AU - Shademan, M AU - Arab-Amiri, A.R AU - Kheyrollahi, H AU - Rajabi, D AD - M. Sc., Faculty of Mining and Petroleum Engineering, University of Tehran, Tehran, Iran AD - Associate Professor, Faculty of Mining, Petroleum and Geophysics Engineering, Shahrood University, Shahrood, Iran AD - Ph.D. Student, Amirkabir University of Technology, Tehran; Geological Survey of Iran, Tehran, Iran AD - Ph.D. Student, Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran Y1 - 2015 PY - 2015 VL - 24 IS - 95 SP - 197 EP - 202 KW - Fast Inversion KW - Helicopter-Borne Electromagnetic KW - Massive sulfide KW - Barika KW - Iran DO - 10.22071/gsj.2015.42192 N2 - Frequency Domain Electromagnetic surveys are being used for various applications like mineral and water exploration, environmental hazards and buried human-made materials because of its resolution and fast acquisition for low depth targets. Resistivity and its depth for each frequency could be calculated in a simpler approach and shorter time than Iterative Inversion Method, Called Straight or Fast Inversion Methods, by assuming earth as a homogeneous half space. Barika’s Anomaly situated in Alut Geology 1:100,000 sheets in west Azerbaijan is studied in order to prospect gold_ lead mineralization which has been detected in systematic geochemical and litho-geochemical surveys. In this paper we studied different Fast Inversion algorithms for synthetic data then applied the best method for real data. Resistivity distribution for each frequency produced and appropriate interpretation according to geology acquired. The results showed that there is a good correlation between low resistivity and shear zones. Also geology map can be modified with higher frequency resistivity. UR - http://www.gsjournal.ir/article_42192.html L1 - http://www.gsjournal.ir/article_42192_2778dbbcf3351a6970c882111d270e5b.pdf ER -