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LI Chang-ming, CHEN Yuan-rong, CHEN Xiao-yan, LI Wei. 2012: The metallogenic geochemical model and prospecting criteria for the Tongkeng tin deposit in Dachang orefield, Nandan County, Guangxi. Geological Bulletin of China, 31(1): 136-142.
Citation: LI Chang-ming, CHEN Yuan-rong, CHEN Xiao-yan, LI Wei. 2012: The metallogenic geochemical model and prospecting criteria for the Tongkeng tin deposit in Dachang orefield, Nandan County, Guangxi. Geological Bulletin of China, 31(1): 136-142.
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The metallogenic geochemical model and prospecting criteria for the Tongkeng tin deposit in Dachang orefield, Nandan County, Guangxi

  • Guilin University of Technology, Guilin 541004, Guangxi,China;2. Guangxi Geological Exploration Institute, Nanning 530023, Guangxi, China

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  • The Dachang tin deposit is a superlarge nonferrous metal deposit characterized by multiple material sources, complicated metallogenic controlling factors and varied types of ore bodies. In this paper, distribution features of different components, anomaly spread characteristics of trace elements and hydrocarbon along the vertical section and horizontal plane related to the ore-forming process of the Dachang tin deposit were summed up. Meanwhile, the synthetic ideal anomaly model and prognostic exploration indicators for deep blind ore bodies were analyzed and summarized. It is discovered that the ore deposit is characterized by complex mineralizing elements, multiple metallogenic periods, obvious anomaly zoning and several anomaly concentration centers along the vertical section. According to the zoning regularity of ore-forming elements, the possible existence of copper-zinc ore bodies in the depth of this area is pointed out.
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