| 新疆西准噶尔拉巴西蛇绿混杂岩带地质特征及其意义 |
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| 引用本文： | 杨红宾,靳松,陈志彬,张兆祎,谢汝斌,许肖斌,刘树兴.新疆西准噶尔拉巴西蛇绿混杂岩带地质特征及其意义[J].地质调查与研究,2011,34(3):161-169,178. |
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| 作者姓名： | 杨红宾 靳松 陈志彬 张兆祎 谢汝斌 许肖斌 刘树兴 |
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| 作者单位： | 河北省地质调查院,石家庄,050081 |
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| 基金项目： | 新疆自治区地质调查项目 |
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| 摘 要： | 新疆西准噶尔地区是古生代经过俯冲-增生形成的复合造山带。该地区分布有多条蛇绿岩带,其中的拉巴西蛇绿岩带是比较重要的一条,通过对该蛇绿混杂岩特征的研究,认为该区蛇绿岩尽管受到强烈的多期构造肢解,但根据岩石类型仍能恢复蛇绿岩的原始层序。本文重点讨论了拉巴西蛇绿混杂岩的地球化学特征,认为其形成时代为晚寒武世-中奥陶世,就位时...
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| 关 键 词： | 西准噶尔 蛇绿混杂岩 拉巴西 地球化学 |
Geological Features and Significance of the Labaxi Ophiolite Melange Belt in the Western Jungeer,Xinjiang |
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| YANG Hong-bin,JIN Song.,CHEN Zhi-bin,ZHANG Zhao-yi,XIE Ru-bin,XU Xiao-bin,LIU Shu-xing.Geological Features and Significance of the Labaxi Ophiolite Melange Belt in the Western Jungeer,Xinjiang[J].Geological Survey and Research,2011,34(3):161-169,178. |
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| Authors: | YANG Hong-bin JIN Song CHEN Zhi-bin ZHANG Zhao-yi XIE Ru-bin XU Xiao-bin LIU Shu-xing |
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| Institution: | YANG Hong-bin1,JIN Song1.2,CHEN Zhi-bin1,ZHANG Zhao-yi1,XIE Ru-bin1,XU Xiao-bin1,LIU Shu-xing1(1.Hebei institute of Geological Survey,Shijiazhuang 050081,China,2.State Key Laboratory of Geological Processes and Mineral Resources,Faculty of Earth Science,China University of Geosciences,Wuhan 430074,China) |
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| Abstract: | Junggar area of western Xinjiang is a composite orogenic belt formed by the subduction-accretion in Paleozoic.There are numbers of ophiolite belts in this area.The Labaxi ophiolite belt in the Junggar area is more important one among them.By the research of ophiolite rock,the authors found that the rock experienced strong tectonic dismemberment,but the original sequence of the ophiolite can be still restored on the basis of the rock types.In this paper,the authors focus on the study of the geochemical characteristics of the ophiolite in Labaxi profile,and consider that the ophiolite is formed in the Late Cambrian-Middle Ordovician,its emplacement time is in the middle-late Silurian,and the ophiolite belt is formed in a fore-arc or back-arc ocean basin environment.The research shows that this ophiolite belt has chromite obviously,therefore,it is showed the clearly prospecting direction for the next work. |
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| Keywords: | western Junggar ophiolite melange labaxi geochemical western Xinjiang |
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