Geology and Genesis of Wenquan Porphyry Molybdenum Deposit in the Western Qinling Area
详细信息
- 责任者：Han Haitao （School of Geosciences and Environmental Engineering ; Central South University ; Changsha 410083 ; China） ; Liu Jishun
- 刊名：Geology and Prospecting
- 出版年：2008
- 卷期：44(4)
- 关键词：斑岩钼矿床 ; porphyry molybdenum deposits ; 秦岭 ; Qinling Mountains
- 页码：p.1-7
- 图表：6 illus., 3 tables, 11 refs.
- 分类号：1001
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
///Wenquan porphyry molybdenum deposit in Chenjiadawan village, Wenquan Town, Wushan County, Gansu Province, is located in the west of Caledonian folding belt in the north Qinling area, which was found after 2000 and has been keeping on prospecting. Ore-bearing rock masses are meso-hypabyssal complexes, which are intrusions of ten times during the Hercynian to Yanshanian periods. The main phase is the quasi-porphyritic biotite adamellite of the Indo-China period intrusion, which was penetrated by the earlier Yanshanian period granitic porphyry that is closely related to the mineralization. Ore minerals are simple and wallrock alterations are weak. Ore-forming materials came from magma, and ore-forming fluids are magmatic water mixed with meteoric and ground water. Re-Os isotopic dating gave model age of 214±7.1 Ma. The deposit belongs to porphyry-mesothermal ore filling Mo type.