| 甘孜-理塘结合带中部花岗岩的地质特征 |
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| 引用本文： | 魏永峰,罗森林.甘孜-理塘结合带中部花岗岩的地质特征[J].四川地质学报,2003,23(1):5-9. |
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| 作者姓名： | 魏永峰 罗森林 |
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| 作者单位： | 四川省地质调查院区调所,四川,双流,610213 |
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| 摘 要： | 对处于甘孜-理塘结合带中心部位的花岗岩，前人依据其产出的构造背景认为它是结合带的一部分，为多期构造-岩浆活动的产物。本次区调通过岩石学、岩石化学、地球化学和锆石U-Pb内位素年龄测定测定值的研究，确定该花岗岩形成于燕山期，隶属于义敦岛弧花岗岩浆带，后构造推覆定位。
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| 关 键 词： | 花岗岩 推覆体 甘孜－理塘结合带 |
| 文章编号： | 1006-0995(2003)01-0005-05 |
| 修稿时间： | 2002年10月28 |
Geological Features of Granitoids in the Central Garzê-Litang Suture Zone |
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| Wei Yongfeng Luo Senlin.Geological Features of Granitoids in the Central Garzê-Litang Suture Zone[J].Acta Geologica Sichuan,2003,23(1):5-9. |
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| Authors: | Wei Yongfeng Luo Senlin |
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| Abstract: | Granitoids in the central Garze - Litang suture zone were considered to be component of the suture zone and product of multiple tectonomgmatic activities based on tectonic setting. Petrographical, petrochemical, geo-chemical studies and U- Pb isotope dating for zircon show that the granitoids were ernplaced in the Yidun island zone during posttectonic napping process in the Yanshan epoch. |
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| Keywords: | granitoids nappe Garze-Litang suture zone |
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