地质学报(英文版)2003,Vol.77Issue(4):537-546,10.
A Metallogenic Model of Gold Deposits of the Jiaodong Granite-Greenstone Belt
A Metallogenic Model of Gold Deposits of the Jiaodong Granite-Greenstone Belt
摘要
Abstract
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.关键词
Jiaodong granite-greenstone belt/source of ore-forming materials/crust-mantle structure/tectono-metallogenic modelKey words
Jiaodong granite-greenstone belt/source of ore-forming materials/crust-mantle structure/tectono-metallogenic model分类
天文与地球科学引用本文复制引用
DENG Jun,YANG Liqiang,SUN Zhongshi,WANG Jianping,WANG Qingfei,XIN Hongbo,LI Xinjun..A Metallogenic Model of Gold Deposits of the Jiaodong Granite-Greenstone Belt[J].地质学报(英文版),2003,77(4):537-546,10.基金项目
This study is supported jointly by the National Natural Science Foundation of China (No. 40172036), "the Key Project of Science and Technology Research" (No. 01037) and the "Trans-century Training Program for Outstanding Talents" Fund sponsored by the Min (No. 40172036)