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

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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

机译：天山西南造山带碰撞后花岗岩的地球化学特征和SHRIMP锆石U-Pb年龄：以黑鹰山和老虎台岩体为例

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摘要：Heiyingshan 花岗石和在西南 Tianshan 暴露的 Laohutai 花岗石 plutons geochemically 类似于 A 类型花岗石。分析证明两个是 ferron calc-alkalic peraluminous 或 ferron 有 SiO2 的相对高的集中的碱钙的 peraluminous (>70%) ，高碱内容(Na2O + K2O =7.14%-8.56% ；K2O > N2O；A/CNK = 0.99-1.20 ) ，并且在 Eu， Ba， Sr， P 和 Ti 的显著否定 anomales。285 楡? 汐瑵湯 ? 的虾锆石 U-Pb 年龄 ? 鯄 ? 鯄？？

机译：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.

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《地质学报（英文版）》 |2008年第2期|415-424|共10页
作者
LONG Lingli; GAO Jun; WANG Jingbin; QIAN Qing; XIONG Xianming; WANG Yuwang; WANG Lijuan; GAO Liming;
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作者单位

China Nonferrous Metals Geological Survey Beijing 100012 China;

Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China;

College of Resources and Environmental Engineering Guizhou University Guiyang 550003 China;

Zhongfei Geological Engineering Exploration Academy Beijing 100102 China;

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正文语种 chi
中图分类地质学;
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Xinjiang; Southwest Tiansban; granite; geochemistry; SHRIMP zircon U-Pb age;

机译：新疆;西南天坂花岗岩;地球化学虾仁锆石U-Pb年龄;
入库时间 2022-08-19 04:36:43

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

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