| 北阿尔金红柳沟-拉配泉构造混杂岩带东段的结构、构造 |
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| 作者姓名： | 查显锋 李荣社 辜平阳 计文化 陈锐明 张海迪 |
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| 作者单位： | 中国地质调查局西安地质调查中心,西安 710054 |
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| 基金项目： | 中国地质调查局“青海阿尔金1:5万打柴沟等6福区调(编号: 1212011121193)”项目资助。 |
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| 摘 要： | 红柳沟-拉配泉蛇绿混杂岩带是阿尔金北部早古生代重要的板块构造边界,带内物质组成复杂,构造形迹发育,区内岩浆活动频繁,是开展板块俯冲边界特征、构造演化过程及区域构造格架再造等方面研究的重要场所。北阿尔金安南坝一带1∶5万地质调查工作对红柳沟-拉配泉构造混杂岩带进行了构造-岩性填图,全面揭示了红柳沟-拉配泉蛇绿混杂岩带空间展布、物质组成、结构-构造特征。结合典型构造剖面及构造变形研究,对阿尔金早古生代构造过程及区域构造演化进行了探讨,为全面认识构造混杂岩带的结构、构造提供了可借鉴的工作经验。
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| 关 键 词： | 构造混杂岩带填图 结构-构造 红柳沟-拉配泉蛇绿混杂岩带 阿尔金断裂 |
| 收稿时间： | 2015-05-24 |
Textures and Structures in the Eastern Hongliuguou-Lapeiquan Tectonic Melange Zone of Northern Altyn Area |
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| Authors: | ZHA Xian-feng LI Rong-she GU Ping-yang JI Wen-hua CHEN Rui-ming Zhang Hai-di |
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| Institution: | Xi'an Center of Geological Survey, China Geological Survey, Xi'an 710054, China |
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| Abstract: | The Early Paleozoic Hongliugou- Lapeiquan ophiolite melange zone is an important tectonic boundary in northern Altyn area. It is a key area for studying the subduction boundaries, tectonic evolution and regional framework reconstruction because of complex compositions, rich structures and frequent magmatism. During the 1:50 000 regional geological survey in Annanba of northern Altyn area, the spatial extension, material composition, textures and structures of the Hongliugou- Lapeiquan ophiolite melange zone have been revealed according to tectonic- lithologic mapping. Based on comprehensive study of typical structural profile and deformation events, the tectonic evolution of Altyn area in Early Paleozoic is discussed, which provides a theoretical possibility for establishing a structural model for general melange. |
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| Keywords: | tectonic melange mapping texture and structure Hongliugou-Lapeiquan ophiolite melange zone Altyn fault |
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