Geochemistry and Chronology of Granodiorite Porphyry in the Dapingzhang Cu Polymetallic Deposit
详细信息
- 责任者：Ru Shanshan (Faculty of Land Resource Engineering ; Kunming University of Science and Technology ; Kunming 650093 ; China) ; Li Feng
- 刊名：Acta Petrologica et Mineralogica
- 出版年：2012
- 卷期：31(4)
- 关键词：铜矿 ; copper ores ; 多金属矿 ; polymetallic ores ; 花岗闪长斑岩 ; granodiorite porphyry ; 云南 ; Yunnan Province
- 页码：p.531-540
- 图表：4 illus., 3 tables, 25 refs.
- 分类号：1001
- issnNo：ISSN1000-6524
- isbnNo：CN11-1966/P
摘要
The Dapingzhang Cu-polymetallic deposit is a typical VHMS（volcanic-hosted massive sulfides） deposit related to intermediate-acid rocks. The granodiorite porphyry that intruded into the ore-bearing volcanic series is large in size, but its research has been very insufficient. Based on field investigation, the authors studied systematically the formation characteristics, petrology, petrochemistry and chronology of the intrusive body. The results show that the granodiorite porphyry and the volcanic rocks have typical intrusive contact relationship. It is also shown that the age of the volcanic and the VHMS deposit should be early Devonian, rather than late Devonian-early Carboniferous.