| 新疆东部三条蛇绿混杂岩带的比较研究 |
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| 引用本文： | 郭召杰,马瑞士,郭令智,施央申.新疆东部三条蛇绿混杂岩带的比较研究[J].地质论评,1993,39(3). |
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| 作者姓名： | 郭召杰 马瑞士 郭令智 施央申 |
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| 作者单位： | 北京大学地质系，南京大学地球科学系，南京大学地球科学系，南京大学地球科学系 |
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| 摘 要： | 本文综合对比了新疆东部三条蛇绿混杂岩带的岩石组合、地球化学特征及其大地构造背景,指出克拉美丽—塔克扎勒—伊吾蛇绿混杂岩带是西伯利亚板块和塔里木板块晚古生代末的最后缝合线;中天山北缘米什沟—干沟蛇绿混杂岩带是古准噶尔洋壳早古生代向塔里木北缘俯冲的标志;南天山红柳河—玉石山蛇绿岩带则是南天山弧后洋盆的残骸。
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| 关 键 词： | 蛇绿混杂岩带 构造背景 板块构造 新疆东部 |
A COMPARATIVE STUDY ON THREE OPHIOLITIC MELANGE BELIS IN EASTERN XINJIANG |
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| Guo Zhaojie,Ma Ruishi,Guo Lingzhi,Shi Yangshen.A COMPARATIVE STUDY ON THREE OPHIOLITIC MELANGE BELIS IN EASTERN XINJIANG[J].Geological Review,1993,39(3). |
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| Authors: | Guo Zhaojie Ma Ruishi Guo Lingzhi Shi Yangshen |
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| Institution: | Guo Zhaojie,Ma Ruishi,Guo Lingzhi,Shi Yangshen Department ol Geology,Peking University,Beijing Department of Earth Sciences,Nanjing University,Nanjing |
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| Abstract: | The petrological and geochemical features, tectonic settings and emplacementmechanism of three ophiolitic melange belts in eastern Xinjiang have been studiedthrough comparison. The Kalameli-Takezale-Yiwu ophiolitic melange belts distrib-uted in East Junggar represents the suture resulting from final collision between theTarim and Siberian Plates in the terminal Late Paleozoic. The Mishigou-Gangouophiolitic melange belt along the north margin of the Mid-Tianshan resulted fromthe southward subduction of Paleo-Junggar oceanic crust in the Early Paleozoic.The Hongliujiang-Yushishan ophiolitic blte in the South Tianshan is the remnantof the South Tianshan back-are sea basin. |
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| Keywords: | ophiolitic melange belt tectonic setting plate tectonics eastern Xinjiang |
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