首页|期刊导航|地质学报（英文版）|Geochemistry and SHRIMP Zircon U-Pb Age of Post-Collisional Granites in the Southwest Tianshan Orogenic Belt of China: Examples from the Heiyingshan and Laohutai Plutons

Geochemistry and SHRIMP Zircon U-Pb Age of Post-Collisional Granites in the Southwest Tianshan Orogenic Belt of China: Examples from the Heiyingshan and Laohutai Plutons

LONG Lingli GAO Jun WANG Jingbin QIAN Qing XIONG Xianming WANG Yuwang WANG Lijuan GAO Liming

地质学报（英文版）2008，Vol.82Issue(2)：415-424,10.

Geochemistry and SHRIMP Zircon U-Pb Age of Post-Collisional Granites in the Southwest Tianshan Orogenic Belt of China: Examples from the Heiyingshan and Laohutai Plutons

LONG Lingli ¹GAO Jun ²WANG Jingbin ¹QIAN Qing ²XIONG Xianming ³WANG Yuwang ¹WANG Lijuan ¹GAO Liming⁴

作者信息

1. China Nonferrous Metals Geological Survey, Beijing 100012, China
2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
3. College of Resources and Environmental Engineering, Guizhou University, Guiyang 550003, China
4. Zhongfei Geological Engineering Exploration Academy, Beijing 100102, China
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摘要

Abstract

The Heiyingshan granite and the Laohutai granite plutons exposed in the Southwest Tianshan resemble A-type granites geochemically. Analysis shows that the both are ferron calc-alkalic peraluminous or ferron aikali-calcic peraluminous with a relatively high concentration of SiO2 (>70%), high alkali contents (Na2O + K2O = 7.14%-8.56%; K2O>N2O; A/CNK = 0.99-1.20), and pronounced negative anomales in Eu, Ba, Sr, P and Ti. A SHRIMP zircon U-Pb age of 285±4 Ma was obtained for the Heiyingshan hornblende biotite granite intrusion. The geochemical and age dating data reported in this paper indicate that these granites were formed during the post-collisional crustal extension of the Southwest Tianshan orogenic belt, in agreement with the published data for the granites in the South Tianshan.

关键词

Xinjiang, Southwest Tiansban, granite, geochemistry, SHRIMP zircon U-Pb age

Key words

Xinjiang, Southwest Tiansban, granite, geochemistry, SHRIMP zircon U-Pb age

分类

天文与地球科学

引用本文复制引用

LONG Lingli,GAO Jun,WANG Jingbin,QIAN Qing,XIONG Xianming,WANG Yuwang,WANG Lijuan,GAO Liming..Geochemistry and SHRIMP Zircon U-Pb Age of Post-Collisional Granites in the Southwest Tianshan Orogenic Belt of China: Examples from the Heiyingshan and Laohutai Plutons[J].地质学报（英文版）,2008,82(2):415-424,10.

基金项目

This research was funded by the ‘National Basic Research Program of China'(No.2007CB411304), the National Natural Science Foundation of China (40672153 and 40721062) and the 'Funds for Hundred Outstanding Talents Plan' sponsored by Chinese Academy of Sciences. （No.2007CB411304）

地质学报（英文版）

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