| 青藏高原西部燕山早期花岗岩地球化学及其大地构造意义 |
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| 引用本文： | 姜耀辉,杨万志.青藏高原西部燕山早期花岗岩地球化学及其大地构造意义[J].矿物岩石,2000,20(1):74-79. |
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| 作者姓名： | 姜耀辉 杨万志 |
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| 作者单位： | 1. 国土资源部南京地质矿产研究所,南京,210016
2. 新疆物化探大队,昌吉,831100 |
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| 基金项目： | “九五”原地矿部资源与环境科技攻关项目(编号:9502010) |
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| 摘 要： | 青藏高原西部燕山早期花岗岩分布于塔阿西－红山湖缝合带北侧的塔什库尔干－甜水海地体内，岩石组合为石英二长闪长岩－花岗闪长岩－二长花岗岩，岩石属高钾钙碱性系列，形成于活动陆缘环境。花岗岩及区域沉积建造特征表明，塔阿西－红山湖缝合带形成于燕山早期晚侏罗世。
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| 关 键 词： | 燕山早期 花岗岩 地球化学 青藏高原 大地构造 |
| 文章编号： | 1001－6872(2000)01－0074－79 |
GEOCHEMISTRY OF EARLY YANSHANIAN GRANITOIDS AND ITS TECTONIC SIGNIFICANCE IN THE WESTERN QINGHAI-TIBET PLATEAU |
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| JIANG Yao-hui,YANG Wan-zhi.GEOCHEMISTRY OF EARLY YANSHANIAN GRANITOIDS AND ITS TECTONIC SIGNIFICANCE IN THE WESTERN QINGHAI-TIBET PLATEAU[J].Journal of Mineralogy and Petrology,2000,20(1):74-79. |
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| Authors: | JIANG Yao-hui YANG Wan-zhi |
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| Institution: | JIANG Yao-hui
;(Nanjing Institute of Geology and Mineral Resources,Ministry of Land Resources,Nanjing 210016);YANG Wan-zhi
;(Xinjiang Geophysical and Geochemical exploration Team,Changji 831100) |
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| Abstract: | Early Yanshanian granitoids in the western Qinghai Tibet plateau are distributed in Taxkorgan-Tianshuihai terrane located to the north side of Taaxi Hongshanhu suture zone.The rock association is quartz monzodiorite granodiorite monzonitic granite.The rocks belong to K rich calc alkaline series and generated in the active continental margin environment.The characteristics of the granitoids and regional sedimental formation indicate that Taaxi Hongshanhu suture formed in late Jurassic. |
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| Keywords: | early Yanshanian granite geochemistry western Qinghai-Tibet Plateau |
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