Geodynamic Setting and Mineralizational Implication of the Xueru Intrusion in Ban’ge, Tibet
详细信息
- 责任者：Gao Shunbao (Faculty of Earth Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Zhenng Youye
- 刊名：Earth Science
- 出版年：2011
- 卷期：36(4)
- 关键词：花岗岩 ; granite ; 成矿作用 ; metallogenesis ; 西藏 ; Tibet
- 页码：p.729-739
- 图表：8 illus., 2 tables, 33 refs.
- 分类号：0801
- issnNo：ISSN1000-2383
- isbnNo：CN42-1233/P
摘要
The Xueru intrusion is chiefly composed of medium-fine-grained monzogranite and medium-coarse-grained porphyritic monzogranite. There are a large number of skarn iron and copper deposits around the contact zone with the Langshan Formation limestone. The rock and zircon LA-ICP-MS U-Pb, XRF, ICP-AES and other analysis show that the monzogranite is enriched in K2O, SiO2, LREE and Rb, Ba, Pb, Th and other large ion lithophile elements; high field strength elements such as Nb, Ta, Sr, Ti are relatively poor; REE distribution curve is significantly rightward, with moderate negative Eu anomaly. This study can greatly facilitate regional mineral exploration.