Study on the Geology and Ore-Fluids of the Tin Deposits in Laoyaquan Alkaline Granites in Eastern Junggar , Xinjiang
详细信息
- 责任者：Wang Lijuan (Beijing Institute of Geology for Mineral Resources ; Beijing 100012 ; China) ; Wang Jingbin
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(5)
- 关键词：锡矿 ; tin ores ; 碱长花岗岩 ; alkali feldspar granite ; 成矿流体 ; ore-forming fluids ; 准噶尔盆地 ; Junggar Basin
- 页码：p.1483-1492
- 图表：6 illus., 2 tables, 25 refs.
- 分类号：1001
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
Laoyaquan alkaline granite is located in eastern Junggar area, northern Xinjiang. Identification of the rock and minerals in Laoyaquan alkaline granite body and the Kamusite tin deposit and Ganliangzi tin deposit, and the REE geochemical and fluid inclusions studies indicate that all of the granite porphyry, ore-bearing quartzite, greisen body-type tin ore body, and quartz vein-type ore body were the products derived from the same alkali-rich granitic magma. Under the conditions of reduction-oxidation state and acidity-alkalinity, the tin-complex taken by the fluid was decompounded because of its unstabilizing, which leads the tin element to be deposited and form the ore.