- 责任者：Yang Meizhen (State Key Laboratory of Geological Processes and Mineral Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Zeng Jiannian
- 刊名：Mineral Deposits
- 出版年：2011
- 卷期：30(3)
- 关键词：钼矿 ; molybdenum ores ; 成矿作用 ; metallogenesis ; 铀—铅计时 ; U-Pb dating ; 河南 ; Henan Province
- 页码：p.435-447
- 图表：9 illus., 1 table, 32 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
Mushan Mo deposit, a typical porphyry molybdenum deposit occurs in the northern margin of Dabie Mountain, is characterized by veinlet-disseminated mineralization and typical porphyry hydrothermal system alteration envelope centering the unmineralized quartz core formed by silicification early at the top of granitic porphyry. The coexistence of vapour-rich and halite-bearing three-phase inclusions indicates that the primitive magmatic fluid has experienced phase separation under low pressure. The results of homogenization temperatures of fluid inclusions show that the ore-forming element including Mo, Cu deposited by cooling of ore-forming hydrothermal system. It concluded that rock forming and Mo mineralization of Mushan Mo deposit are resulted from the thickened continental crust by partial melting during post-collision of Dabie Mountain, and it happened nearly 10 Ma earlier than granitic magmatism peak (～130 Ma) in early Cretaceous in Dabie region.