The Discovery of Qingbaikouan Plutonite in Taxorgan, Xinjiang, and Evidence from Zircon LA-ICP-MS U-Pb Dating of Intrusive Rock
详细信息
- 责任者：Bian Xiaowei (China University of Geosciences ; Beijing ; 100083 ; China) ; Zhu Haiping
- 刊名：Northwestern Geology
- 出版年：2013
- 卷期：46(1)
- 关键词：英云闪长岩 ; tonalite ; 新疆 ; Xinjiang
- 页码：p.22-31
- 图表：illus., 5 tables, 19 refs.
- 分类号：0801
- issnNo：ISSN1009-6248
- isbnNo：CN61-1149/P
摘要
In the period of 1∶50000 field mapping, precambrian strata was distinguished from the Lower Paleozoic strata, intruding the Neoproterozoic tonalite pluton. In situ zircon U-Pb LA-ICP-MS dating on the tonalite pluton zircons yielded an age of the 855±14Ma and 836±12Ma, representing the tonalite pluton intruding age and being the only Neoproterozoic age in Karakorum belt, which is important in studying of Karakorum Precambrian geological evolution.