| PETROLOGY OF BLUESCHIST IN WESTERN YUNNAN PROVINCE,CHINA,AND ITS TECTONIC SIGNIFICANCE |
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| 作者姓名： | 张儒媛 从柏林 李永刚 |
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| 作者单位： | Institute of Geology，Academia Sinica，Beijing 100011，PRC，Institute of Geology，Academia Sinica，Beijing 100011，PRC，Institute of Geology，Academia Sinica，Beijing 100011，PRC |
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| 基金项目： | Project supported by the National Natural Science Foundation of China. |
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| 摘 要： | The blueschists in western Yunnan Province are distributed in Lancangjiang and Ailaoshan metamorphic belts and occur as interlayer in green schist and mica schist. Their protolith is basaltic and pelitic rocks with a mineral assemblage of Cr (or Win)+Ab+Qz+Chl+Ph+Ep+Sph+Act and Gl+Ph+Tc+Ep+Alm+Qz+Do, respectively. The P-T conditions of blueschist metamorphism range from 170—443℃ at c. 4—6. 7 kbar. The origin of blue schist of the Lancangjiang belt is related to the subduction and the close of the paleo-Tethys oceanic basin. The Ailaoshan blueschist, however, may be related to the continent continent collision and the dynamic metamorphism.
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PETROLOGY OF BLUESCHIST IN WESTERN YUNNAN PROVINCE,CHINA,AND ITS TECTONIC SIGNIFICANCE |
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| ZHANG RU-YUAN CONG BO-LIN LI YONG-GANG.PETROLOGY OF BLUESCHIST IN WESTERN YUNNAN PROVINCE,CHINA,AND ITS TECTONIC SIGNIFICANCE[J].Science in China(Chemistry),1990(9). |
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| Authors: | ZHANG RU-YUAN CONG BO-LIN LI YONG-GANG |
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| Abstract: | |
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| Keywords: | western Yunnan Province blueschist Alkali amphibole P-T condition |
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