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中国洋板块地层分布及构造演化
引用本文:张克信,何卫红,徐亚东,骆满生,宋博文,寇晓虎,张智勇,肖庆辉,潘桂堂.中国洋板块地层分布及构造演化[J].地学前缘,2016,23(6):24-30.
作者姓名:张克信  何卫红  徐亚东  骆满生  宋博文  寇晓虎  张智勇  肖庆辉  潘桂堂
作者单位:1.中国地质大学(武汉) 生物地质与环境地质国家重点实验室, 湖北 武汉 430074 2. 中国地质大学(武汉) 地质调查研究院, 湖北 武汉 430074 3. 中国地质调查局, 北京 100037 4. 成都地质矿产研究所, 四川 成都 610082
基金项目:中国地质调查局项目(121201004000150013,1212010733802);科学技术部国家重点专项课题(2016YFC0601005)
摘    要:以大地构造相研究为主导,以《中国沉积大地构造图(1∶2 500 000)》编图为研究平台,对洋板块地层类型进行了初步划分,简述了中国新元古代以来洋板块地层分布及其构造演化规律。本文阐述了北方的古亚洲洋的洋陆转换从西往东具穿时现象,西部主要在早、晚石炭世之间,东部主要在中、晚二叠世之间;宽坪-佛子岭混杂岩带是华北与扬子之间大洋消亡的产物;中央造山带从北部的祁连-阿尔金到南部的昆仑-秦岭,洋陆转换从北向南依次完成:西昆仑北-阿尔金-祁连-祁曼塔格为晚奥陶世末,西昆仑南-东昆仑-秦岭为早三叠世末;青藏高原中部的龙木错-双湖、班公湖-怒江、昌宁-孟连蛇绿混杂岩带一起构成了原-古特提斯大洋连续演化、分阶段增生至最终消亡的对接带,洋壳持续时代自寒武纪-早白垩世;江绍-郴州-钦防混杂岩带是扬子陆块与华夏增生造山系之间华南洋最终消亡的对接带,主碰撞期是晚奥陶世-早志留世。

关 键 词:洋板块地层  地层类型  构造演化  中国
收稿时间:2016-03-24

Palaeogeographic distribution and tectonic evolution of OPS in China
ZHANG Kexin,HE Weihong,XU Yadong,LUO Mansheng,SONG Bowen,KOU Xiaohu.Palaeogeographic distribution and tectonic evolution of OPS in China[J].Earth Science Frontiers,2016,23(6):24-30.
Authors:ZHANG Kexin  HE Weihong  XU Yadong  LUO Mansheng  SONG Bowen  KOU Xiaohu
Institution:1.State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences(Wuhan), Wuhan 430074, China 2. Institute of Geological Survey, China University of Geosciences(Wuhan), Wuhan 430074, China 3. China Geological Survey, Beijing 100037, China 4. Chengdu Institute of Geology and Minerals Resources, Chengdu 610082, China
Abstract:The classification of the Ocean Plate Strata (OPS) in China has been proposed and the palaeogeographic distribution of the OPS and Neoproterozoic Cenozoic tectonic evolutions in China have been summarized, based on the idea of tectonic facies analysis and numerous materials used in the editing of the “Sedimentary Tectonic Map of China (1∶2500000)”. The tectonic evolutions of the six major belts in China have been outlined in this paper. The ocean continent converting of the Paleo Asian Ocean in northern China presented diachronous phenomenon from west to east, namely, the converting taking place in the Early Late Carboniferous in the west, and in the MiddleLate Permian in the east. The Kuanping Foziling ophiolitic mélange zone is considered as a product of the demise of the ocean between North China and Yangtze. The ocean continent converting of the Central Orogenic Belt of China happened during the late Late Ordovician along the Qilian Altun area in the north and took place in the late Early Triassic along the Kunlun Qinling area in the south. The Longmucuo Shuanghu, Changning Menglian, Bangonghu Nujiang mélange zone in Tibet is regarded as the suture zone between Laurasia and Gondwanaland continents and was formed during the Cambrian to the Early Cretaceous, marking the evolution from the Proto Tethys to Paleo Tethys. The Jiangshao Chenzhou Qinfang mélange zone is considered as another suture zone, marking the demise of Huanan Ocean between Yangtze Block and Cathay Accreted Block, and the main collision of them happened in the Late Ordovician to the Early Silurian.
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