Geochemistry and Zircon U-Pb Geochronology of the Diorite Porphyry Associated with the Jinchang Cu-Au Deposit, Heilongjiang Province
详细信息
- 责任者：Zhao Yusuo (State Key laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Yang Liqiang
- 刊名：Acta Petrologica Sinica
- 出版年：2012
- 卷期：28(2)
- 关键词：铜矿 ; copper ores ; 金矿 ; gold ores ; 闪长玢岩 ; diorite porphyry ; 黑龙江省 ; Heilongjiang Province
- 页码：p.451-467
- 图表：8 illus., 4 tables, 50 refs.
- 分类号：1001
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
The Jinchang Cu-Au deposit,a super-large ore deposit explored in the latest,is mainly of breccia-type ore body and is spatially closely associated with diorite porphyry which is apophysis like and porphyry structure with mainly plagioclase, hornblende and little pyroxene as phenocryst. The geochemical data suggests that the diorite porphyry is probably adakitic rock and were produced by crustal contamination and fractionation of mafic magmas generated from partial melting of mantle source which had been metasomatismed by the subduction fluid. It is potential to exploration the porphyry-epithemal system copper-gold deposit of the same period in the eastern part of Jilin and Heilongjiang provinces.
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