| Discovery of High-Pressure Basic Granulite Terrain in North China Archaean Craton and Preliminary Study |
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| 作者姓名： | 翟明国 郭敬辉 阎月华 李永刚 韩秀伶 |
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| 作者单位： | Institute of Geology，Academia Sinica，Beijing 100029，PRC，Institute of Geology，Academia Sinica，Beijing 100029，PRC，Institute of Geology，Academia Sinica，Beijing 100029，PRC，Institute of Geology，Academia Sinica，Beijing 100029，PRC，Institute of Geology，Academia Sinica，Beijing 100029，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： | High-pressure basic granulite terrain of 2.65 Ga from Jiouhuai'an in the junction of the Hebei and Shanxi provinces was discovered and reported recently. The three metamorphic mineral assemblages and their mineral reaction texture of the basic granulites have been identified, which represent three main metamorphic episodes of 1.4—1.5 Gpa, 800℃; 0.7—0.9 Gpa, 820℃ and 0.5—0.6 Gpa, 700℃. Their steep decompressional clockwise P-T path implies that a late Archaean continental collision and sole thrusting event perhaps occurred in North China Craton. This is important to study petrogenesis of high-pressure granulites, composition and texture of deep crust in North China Craton, and early Precambrian collision tectonism.
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Discovery of High-Pressure Basic Granulite Terrain in North China Archaean Craton and Preliminary Study |
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| ZHAI Ming-Guo GUO Jing-Hui YAN Yue-Hua LI Yong-Gang and HAN Xiu-Ling.Discovery of High-Pressure Basic Granulite Terrain in North China Archaean Craton and Preliminary Study[J].Science in China(Chemistry),1993(11). |
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| Authors: | ZHAI Ming-Guo GUO Jing-Hui YAN Yue-Hua LI Yong-Gang and HAN Xiu-Ling |
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| Abstract: | |
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| Keywords: | high-pressure granulite lower crust North China |
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