首页|A Metallogenic Model of Gold Deposits of the Jiaodong Granite-Greenstone Belt

A Metallogenic Model of Gold Deposits of the Jiaodong Granite-Greenstone Belt

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An analysis of trace elements and isotopic geochemistry suggest that the ore-forming materials of golddeposits in the Jiaodong granite-greenstone belt have multiple sources, especially the mantle source. Seismic wave,magnetic and gravity fields show that the crust-mantle structure and its coupling mechanism are the fundamental dynamiccauses for the exchange and accumulation of materials and energy in the metallogenic system. Considering the evolutionhistory of the structural setting, the tectono-metallogenic dynamics model of the area can be summarized as follows: (1)occurrence of the greenstone belt during the Archean-Proterozoic-the embryonic form of Au-source system; (2) stabletectonic setting in the Paleozoic-an intermittence in gold mineralization; (3) intensive activation and reformation of thegreenstone belt in the Mesozoic-ectono-mineralization and tectono-diagensis; (4) posthumous structural activity in theCenozoic-destruction of orebodies in the later stage. In the middle and late Indosinian, the Tancheng-Lujiang fault zonecut deeply into the upper mantle so that the ore-bearing fluids migrated to higher layers through the crust-mantleinteraction, resulting in alteration and mineralization.

Jiaodong granite-greenstone beltsource of ore-forming materialscrust-mantle structuretectono-metallogenic model

DENG Jun、Yang Liqiang、Sun Zhongshi、WANG Jianping、Wang Qingfei、Xin Hongbo、Li Xinjun

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Key Laboratory of Lithospheric Tectonics and Exploration, China University of Geosciences, Ministry of Education, Beijing 100083

Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101

Faculty of Earth Sciences, Jilin University, Changchun, Jilin 130061

This study is supported jointly by the National Natural Science Foundation of ChinaKey Project of Science and Technology Research教育部跨世纪优秀人才培养计划国家重点基础研究发展计划(973计划)

40172036010371999043206

2003

地质学报(英文版)
中国地质学会

地质学报(英文版)

影响因子：1.414
ISSN：1000-9515
年,卷(期)：2003.77(4)
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