Genesis of Anqing Copper-Iron Deposit, Anhui Province：Constraints from Mineral Deposit Geology and Element Geochemistry
详细信息
- 责任者：Zhang Zhiyu (State Key Laboratory of Geological Process and Mineral Resources ; School of the Earth Sciences and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Du Yangsong
- 刊名：Acta Petrologica Sinica
- 出版年：2012
- 卷期：28(11)
- 关键词：铜矿 ; copper ores ; 铁矿 ; iron ores ; 安徽 ; Anhui Province
- 页码：p.3739-3756
- 图表：8 illus., 2 tables, 77 refs.
- 分类号：1001
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
The Anqing copper-iron deposit is a typical skarn-type deposit, which is located in the Anqing-Guichi ore cluster along the Middle and Lower Yangtze River Cu （Au）-Fe metallogenic belt. Analyses of the typical skarn samples systematically collected from a cross section show that the ore bodies and surrounding rocks have a significant petrochemical zoning with variation of mineral assemblage in space. The results of regional magmatic process indicate a complex origin of the Anqing copper-iron deposit by ore pulp penetration with contact metasomatism. Fe-riched ore pulp formed by immiscibility in shallow magma chamber should be the main source of ore-forming elements in the deposit.