首页|期刊导航|中国地球化学学报（英文版）|Formation of the adakite-like granitoid complex and porphyry copper-gold deposit in Shaxi from southern Tancheng-Lujiang fault belt: A clue to the West Pacific plate subduction
中国地球化学学报（英文版）2009，Vol.28Issue(1)：28-43,16.DOI:10.1007/s11631-009-0028-7
Formation of the adakite-like granitoid complex and porphyry copper-gold deposit in Shaxi from southern Tancheng-Lujiang fault belt: A clue to the West Pacific plate subduction
Formation of the adakite-like granitoid complex and porphyry copper-gold deposit in Shaxi from southern Tancheng-Lujiang fault belt: A clue to the West Pacific plate subduction
摘要
Abstract
On the basis of the geological and geochemical studies, including chemical analysis of bulk rocks, rare-earth and trace element studies, fluid inclusion, and S and O isotopic analyses, the authors described the geo-logical background of the deposit in detail and presented significant proofs for the conditions of formation of the Shaxi porphyry copper-gold deposit. Compared with other large and supper-large porphyry copper deposits in China and the adjacent Cu-Au mineralized areas, the ore-forming processes and conditions were analyzed; and the possibil-ity of forming large porphyry copper deposits in the Shaxi area was discussed. The present study indicated that the ore-forming fluid and material were mainly of magmatic origin, while meteoric water played a certain role in the ore-forming processes. Interactions between subducting and overriding plates provided a major driving force for the formation of igneous rocks and the deposition of metal elements in East China since Jurassic. Based on the geo-chemical data of the Shaxi intrusive, it is found that the copper (gold) mineralization is closely related to the genesis of adakite-like intrusive in the Shaxi area. This adakite-like intrusive was formed in the subduction environment as a result of the subduction of the West Pacific plate toward the East China continent, where there is a great potential-ity to form a large porphyry copper deposit.关键词
porphyry copper (gold) deposit/S and O isotopes/adakite/ore-forming process/subduction of the West Pacific plate/ShaxiKey words
porphyry copper (gold) deposit/S and O isotopes/adakite/ore-forming process/subduction of the West Pacific plate/Shaxi分类
天文与地球科学引用本文复制引用
LAN Xianghua,YANG Xiaoyong,YU Liangfan,ZHANG Qianming..Formation of the adakite-like granitoid complex and porphyry copper-gold deposit in Shaxi from southern Tancheng-Lujiang fault belt: A clue to the West Pacific plate subduction[J].中国地球化学学报（英文版）,2009,28(1):28-43,16.基金项目
This study is supported by the Knowledge Innovation Project of the Chinese Acad-emy of Sciences (Grant No. KZCX1-YW-15) and the National Natural Science Foundation of China (Grant No. 90814008), parts of experimental work is sup-ported from the Opening Funding of State Key Labo-ratory of Geological Processes and Mineral Resources, China University of Geosciences (GPMR0506). （Grant No. KZCX1-YW-15）
