| 班公湖-怒江结合带西段中特提斯多岛弧构造演化 |
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| 引用本文： | 曹圣华,邓世权,肖志坚,廖六根.班公湖-怒江结合带西段中特提斯多岛弧构造演化[J].沉积与特提斯地质,2006,26(4):25-32. |
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| 作者姓名： | 曹圣华 邓世权 肖志坚 廖六根 |
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| 作者单位： | 1. 中国地质大学,地球科学学院,湖北,武汉,430074;江西省地质调查研究院,江西,南昌,330030
2. 江西省地质调查研究院,江西,南昌,330030 |
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| 基金项目： | 中国地质调查局“1∶25万邦多区幅、措麦区幅、羌多幅、日土县幅、喀纳幅(国内部分)区域地质调查” |
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| 摘 要： | 本文根据1∶25万地质填图成果,将班公湖-怒江结合带西段弧-盆系时空结构自北向南划分为五峰尖-拉热拉新晚侏罗世—早白垩世陆缘火山-岩浆弧带、班公湖蛇绿混杂岩北、南亚带和昂龙岗日-班戈白垩纪—始新世岩浆弧带等,初步认为中特提斯洋经历了三叠纪—早侏罗世扩张,中—晚侏罗世往北、南双向俯冲,晚三叠世—早白垩世残余洋(海)盆和早—晚白垩世陆-弧(陆)碰撞等演化阶段。
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| 关 键 词： | 班公湖-怒江结合带 中特提斯 多岛弧-盆系 构造演化 西藏 |
| 文章编号： | 1009-3850（2006）04-0025-08 |
| 收稿时间： | 2006-08-21 |
| 修稿时间： | 2006-08-21 |
The archipelagic arc tectonic evolution of the Meso-Tethys in the western part of the Bangong Lake-Nujiang suture zone |
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| CAO Sheng-hu,DENG Shi-quan,XIAO Zhi-jian,LIAO Liu-gen.The archipelagic arc tectonic evolution of the Meso-Tethys in the western part of the Bangong Lake-Nujiang suture zone[J].Sedimentary Geology and Tethyan Geology,2006,26(4):25-32. |
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| Authors: | CAO Sheng-hu DENG Shi-quan XIAO Zhi-jian LIAO Liu-gen |
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| Institution: | 1. Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, Hubei, China ; 2. Jiangxi Institute of Geological Survey, Nanchang 330030, Jiangxi, China |
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| Abstract: | The spatial-temporal framework of the arc-basin systems in the western part of the Bangong Lake-Nujiang suture zone may be divided, from north to south on the basis of the results of the 1:250 000 geological mapping, into the Wufengjian-Larelaxin Late Jurassic-Early Cretaceous epicontinental volcanic-magmatic arc zone, northern and southern subzones of the Bangong Lake ophiolitic mélange zone, and Nganglong Kangri-Baingoin Cretaceous-Eocene magmatic arc zone. The Meso-Tethyan Ocean once went through the Triassic-Early Jurassic spreading, Middle-Late Jurassic northward and southward bidirectional subduction, Late Triassic-Early Cretaceous residual ocean (sea)basin and Early-Late Cretaceous continent-arc (continent)collision. |
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| Keywords: | Bangong Lake-Nujiang suture zone Meso-Tethys archipelagic arc-basin system tectonic evolution Xizang |
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