Zircon SHRIMP U-Pb Dating of Porphyry Vein from the Jiama Copper Polymetallic Deposit in Tibet
详细信息
- 责任者：Ying Lijuan (Key Laboratory of Metallogeny and Mineral Resource Assessment ; MLR ; Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Tang Juxing
- 刊名：Acta Petrologica Sinica
- 出版年：2011
- 卷期：27(7)
- 关键词：斑岩铜矿床 ; porphyry copper deposit ; 成矿期 ; metallogenic period ; 西藏 ; Tibet
- 页码：p.2095-2102
- 图表：5 illus., 1 table, 28 refs.
- 分类号：1001
- 出版序号：543
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
In this paper, two samples of slightly mineralized porphyry rocks: granite porphyry (sample JM52-0) and granitic diorite porphyry (sample JM52-46.7), have been collected from the No. 52 adit in Qianshan of the mining area. Through zircon SHRIMP U-Pb dating at the first time, their 206Pb/238U -207Pb/235U concord ages are (14.2±0.2) Ma and (14.1±0.3) Ma, respectively. The ages from the zircon SHRIMP U-Pb dating in this paper mean the crystallization age of magmatic zircon representing the south-north distributed granite and granitic diorite porphyry outcrops.
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