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| 过铝花岗岩的研究动向和进展——兼论西藏过铝花岗岩 |
| 廖忠礼,莫宣学,潘桂棠,朱弟成,王立全,赵志丹,江新胜 |
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(1. 成都地质矿产研究所, 四川 成都 610082;
2. 中国地质大学, 北京 100083) |
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| 摘要: |
| 本文主要讨论了过铝花岗岩的含义、类型、构造环境以及两种主要过铝花岗岩类的成因。并以西藏过铝花岗岩为例,阐述和分析其分布特征、主要岩石类型和岩石学、地球化学特征,初步认为西藏过铝花岗岩的成因是新特提斯洋关闭后印度板块与欧亚板块碰撞造山作用的结果,主要属同撞碰花岗岩。 |
| 关键词: 过铝花岗岩 类型 构造环境 西藏 |
| DOI： |
| 附件 |
| 投稿时间：2003-12-12 |
| 基金项目:国家重点基础研究发展规划项目(2002CB412600,G1998040800),中国地质调查局青藏高原南部空白区基础地质调查与研究项目(1212010310102),青藏高原地质构造及其资源环境效应综合研究项目(200113900069),中国地质大学“岩石圈构造、深部过程及探测技术”教育部重点实验室开放课题(2003003)。 |
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| Peraluminous granites: insights from recent developments with discussions on the peraluminous granites in Xizang |
| LIAO Zhong-li, MO Xuan-xue, PAN Gui-tang, ZHU Di-cheng, WANG Li-quan, ZHAO Zhi-dan, JIANG Xin-sheng |
(1. Chengdu Institute of Geology and Mineral Resources, Chengdu 610082, Sichuan, China;
2. China University of Geosciences, Beijing 100083, China) |
| Abstract: |
| The present paper deals with the terminology,type,tectonic setting and genesis of peraluminous granites,with the emphasis on the peraluminous granites in Xizang,southwestern China. The preliminary study demonstrates that the peraluminous granites in Xizang may be assigned to the syncollisional granites,and resulted from collision and mountain building caused by the collision between the Indian and Eurasian plates following the closure of the Neo-Tethyan Ocean. |
| Key words: peraluminous granites type tectonic setting Xizang |