| 川西双江口地区花岗岩的岩石学、地球化学特征及其成因研究 |
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| 引用本文： | 李青峰,肖渊甫,王世元. 川西双江口地区花岗岩的岩石学、地球化学特征及其成因研究[J]. 四川地质学报, 2008, 28(2): 77-83 |
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| 作者姓名： | 李青峰 肖渊甫 王世元 |
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| 作者单位： | 成都理工大学地球科学学院,成都,610059 |
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| 摘 要： | 双江口地区出露的花岗岩主要为二云二长花岗岩和似斑状黑云花岗岩，二者呈侵入接触关系，在岩体特征、岩石颜色、结构、矿物组成及后期改造等方面存在较为明显的差异。岩相学特征表明二云二长花岗岩形成晚于似斑状花岗岩，岩石地球化学特征表明二者成因为部分熔融，物源为壳源，形成环境为同碰撞-造山带环境，形成时间为印支晚期。
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| 关 键 词： | 花岗岩 岩石地球化学 成因 川西双江口 |
| 文章编号： | 1006-0995(2008)02-0077-07 |
| 修稿时间： | 2007-03-17 |
Petrology, Geochemistry and Genesis of Granitoids in the Shuangjiangkou Area, West Sichuan |
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| LI Qing-feng,XIAO Yuan-fu,WANG Shi-yuan. Petrology, Geochemistry and Genesis of Granitoids in the Shuangjiangkou Area, West Sichuan[J]. Acta Geologica Sichuan, 2008, 28(2): 77-83 |
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| Authors: | LI Qing-feng XIAO Yuan-fu WANG Shi-yuan |
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| Affiliation: | (College of Earth science, Chengdu University of Technology,, Chengdu, 610059) |
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| Abstract: | The granitoids intrusion in the Shuangjiangkou area consists mainly of two-mica adamellite and porphyroid biotite granite. The two-mica adamellite differs from porphyroid biotite granite in color, texture and mineral composition. Petrographic features indicate that the two-mica adamellite was emplaced after the porphyroid biotite granite. Lithogeochemical features indicate that they were crust-derived and emplaced in a syncollision-synorogenic conditions in the Late Indo-Chinese epoch. |
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| Keywords: | Shuangjiangkou： granitoids： petrography lithogeochemistry genesis Shuangjiangkou, west Sichuan |
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