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Article by Zhang S
Article by Zhang N
Article by Wu H
Article by Li L
Article by Ren J
Article by Wu Y
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Application of low-altitude aeromagnetic technology in Zhuxi mining area of Jiangxi
ZHANG Shuang1, ZHANG Nan2, WU He-yu1, LI Lu1, REN Jun-long1, WU Yan-gang1
1. College of Geo-exploration Science and Technology, Jilin University, Changchun 130026, China;
2. Sinotech Minerals Exploration Co. Ltd, Beijing 100012, China
Abstract: In order to verify the application effect of low-altitude aeromagnetic technology in the prediction of fault zones and metallogenic prospects, on the basis of backgroud information on the geological structure and the geophysical and geochemical exploration in Zhuxi mining area in Jiangxi, the authors use upward continuation and gradient processing, including the total gradient amplitude, the oblique derivative and the vertical derivative, to deal with the low-flying magnetic data. By combining the calculated anomaly contour maps with the local geological structure and the local mineralization characteristics of the mining area of Jiangxi, 8 faults are identified with strike directions of north-east (NE), near east-west (EW) and north-west (NW). Among these 8 faults, the NE-trending faults are the main deep faults formed by the compression related to the nappe structure between the lower Yangtze Plate and the upper Huaxia Plate, and these faults are mainly located between the Taqian-Fuchun fault zone and the Shuangtian-Shipishan fault zone. The near EW and NW faults are secondary faults. The near EW faults are probably caused by the Jiujiang-Dexing fault zone. Meanwhile, by analysing the special magnetic gradient anomaly of the skarn deposits in Zhuxi mining area, the authors deduce 4 metallogenic prospects which are mainly located near the fault zones.
Keywords: high precision   dynamic delta wing   low-altitude aeromagnetic   Zhuxi mining area   data interpretation  
�ո����� 2017-12-09 �޻����� 2018-02-26 ����淢������  
DOI: 10.3969/j.issn.1004-5589.2018.02.026
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