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Global Geology 2009, 12(4) 189-193 DOI: ISSN: 1673-9736 CN: 22-1371/P

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Study on deep structure in Ailaoshan region based on aeromagnetic interpretations

PENG Yuanyuan1 , L I Shichao1, 2 , LU Laijun1 , L IU Guangsheng3 and WU Jun4

1. College of Earth Sciences, Jilin University, Changchun 130061, China; 2. Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China 3. Institute of Integrated Inform ation & Mineral Forecast, Jilin University, Changchun 130026, China; 4. Changchun Gold Research Institute, Changchun 130012, China

Abstract:

Linear and circular interpretation structure maps of different relative depths are obtained by processing 1: 200000 aeromagnetic data to the pole in Ailaoshan region, interpreting upward extension of 4 heights, extracting a vertical second derivative line of 0 value and a series of calculations. Concealed boundary of deep magnetic rocks can be delineated according to the maps. On the basis of the conclusions above, a set of economical and practical methods to graph the deep structure are summarized. In addition, the relationship between deep structure and mineralization positions is discussed.

Keywords: Ailaoshan region aeromagnetic data interpretation deep structure mineralization

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