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| 青海玉树地区第三纪盆地原型及其演化 | |
| 引用本文： | 姜勇彪,侯增谦,严兆彬,杜后发,郭福生,刘燕学.青海玉树地区第三纪盆地原型及其演化[J].大地构造与成矿学,2009,33(4). |
| 作者姓名： | 姜勇彪 侯增谦 严兆彬 杜后发 郭福生 刘燕学 |
| 作者单位： | 1. 成都理工大学地球科学学院,四川,成都,610059;东华理工大学地球科学与测绘工程学院,江西,抚州,344000 2. 中国地质科学院地质研究所,北京,100037 3. 东华理工大学核资源与环境教育部重点实验室,江西,南昌,330013 4. 东华理工大学地球科学与测绘工程学院,江西,抚州,344000 |
| 基金项目： | 中国地质调查局"青海沱沱河-玉树地区大型逆冲推覆构造与Pb-Zn-Ag成矿作用研究"项目 |
| 摘 要： | 青藏高原东北部玉树地区第三纪发育一系列陆内红色盆地,它们是在古特提斯多岛洋构造格局基础上,受青藏高原的隆起和大规模的逆冲-推覆和走滑-拉分作用的影响而形成。其演化明显呈阶段性发展,即早期受南西向挤压作用,研究区形成逆冲断裂,致使断裂下盘压陷形成前陆盆地,沉积一套河流相的粗碎屑岩系,局部伴有岩浆活动;中期控盆地断裂发生西北向的走滑-拉分,形成拉分盆地,沉积一套湖泊三角洲相细碎屑岩系,并伴有广泛岩浆活动;晚期走滑挤压作用,沉积一套河流湖泊相粗碎屑岩系。区域构造演化控制了盆地沉降作用、沉积作用、火成活动和盆地的构造格架。 |
| 关 键 词： | 第三纪 盆地原型 前陆盆地 拉分盆地 青海玉树 |
Prototype and Evolution of the Tertiary Basins in Yushu Area,Qinghai |
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| JIANG Yongbiao,HOU Zengqian,YAN Zhaobin,DU Houfa,GUO Fusheng,LIU Yanxue.Prototype and Evolution of the Tertiary Basins in Yushu Area,Qinghai[J].Geotectonica et Metallogenia,2009,33(4). | |
| Authors: | JIANG Yongbiao HOU Zengqian YAN Zhaobin DU Houfa GUO Fusheng LIU Yanxue |
| Institution: | JIANG Yongbiao1,2,HOU Zengqian3,YAN Zhaobin4,DU Houfa2,GUO Fusheng2 , LIU Yanxue3(1.College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,Sichuan,China,2.School of Geosciences , Survey Engineering,East China Institute of Technology,Fuzhou 344000,Jiangxi,3.Institute of Geology,CAGS,Beijing 100037,4.MOE Key Laboratory of Nuclear Resource , Environment,Nanchang 330013,China) |
| Abstract: | With the Qinghai-Tibet Plateau uplifting and large-scale thrusting and striking,there have developed a lot of Tertiary intracontinental red basins formed on the base of the Palaeo-Tethys multi-island ocean framework around the Yushu area in the northeast of the Plateau. The basins underwent a phased evolution history. In the early stage the thrust faults developed and forced the lower plates to pouch and to form foreland basins with depositions of coarse fragmentals of river facies and local magmatisms in t... |
| Keywords: | Tertiary basin prototype foreland basin pull-apart basin Yushu Qinghai |
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