| 西昆仑及邻区新生代差异隆升的热年代学证据 |
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| 引用本文： | 曹凯,王国灿,刘超,孟艳宁. 西昆仑及邻区新生代差异隆升的热年代学证据[J]. 地球科学, 2009, 34(6): 895-906 |
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| 作者姓名： | 曹凯 王国灿 刘超 孟艳宁 |
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| 作者单位： | 1.中国地质大学地质过程与矿产资源国家重点实验室, 湖北武汉 430074 |
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| 基金项目： | 中国地质调查局项目(No.1212010610103); 国家自然科学基金项目(No.40672137); 中国地质大学研究生学术创新与探索基金(No.CUGYJS0801) |
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| 摘 要： | 通过总结和分析有关热年代学的资料, 认为西昆仑及邻区的隆升存在明显的时空差异性.第一, 隆升历史表现出明显的阶段性: 晚渐新世到早中新世(25~16Ma) 的部分隆升阶段、中新世中后期的快速隆升阶段(14~8Ma) 和晚中新世以来的整体强烈隆升阶段(6Ma以来).第二, 隆升在空间上显示出明显的差异性: 塔什库尔干-公格尔山地区的隆升主要集中在9Ma以来, 红其拉甫-库地地区的隆升主要集中在25~16Ma, 康西瓦-普鲁地区的隆升则主要在9Ma以来(集中在9~2Ma) 和25~12Ma.东西方向上表现为东西两端靠近构造结(喜玛拉雅西构造结和西昆仑-阿尔金构造结合部位) 的地方较新(主要在9Ma以来), 中间较老(主要在9Ma以前); 南北方向上, 西昆北地体在20Ma左右发生快速隆升, 西昆南地体在9~5Ma发生快速隆升, 而甜水海地体在5~2Ma发生快速隆升, 由北向南总体上呈现出由老到新的空间差异性.
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| 关 键 词： | 西昆仑 新生代 磷灰石 热年代学 差异隆升 青藏高原 |
| 收稿时间： | 2008-12-20 |
Thermochronological Evidence of the Cenozoic Differential Uplift Processes of the West Kunlun and Its Adjacent Area |
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| CAO Kai,WANG Guo-can,LIU Chao,MENG Yan-ning,.State Key Laboratory of Geological Processes , Mineral Resources,China University of Geosciences,Wuhan,China.Faculty of Earth Sciences,China.Survey , Design Institute of Liaoning Non-ferrous Ore Geological Bureau,Shenyang,China. Thermochronological Evidence of the Cenozoic Differential Uplift Processes of the West Kunlun and Its Adjacent Area[J]. Earth Science-Journal of China University of Geosciences, 2009, 34(6): 895-906 |
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| Authors: | CAO Kai WANG Guo-can LIU Chao MENG Yan-ning .State Key Laboratory of Geological Processes Mineral Resources China University of Geosciences Wuhan China.Faculty of Earth Sciences China.Survey Design Institute of Liaoning Non-ferrous Ore Geological Bureau Shenyang China |
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| Affiliation: | CAO Kai1,2,WANG Guo-can1,LIU Chao3,MENG Yan-ning1,21.State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan430074,China2.Faculty of Earth Sciences,China3.Survey and Design Institute of Liaoning Non-ferrous Ore Geological Bureau,Shenyang110013,China |
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| Abstract: | Thermochronological data suggests that spatial-temporal differences of uplift obviously exist in West Kunlun and its adjacent area. Firstly,the uplift history falls into three distinct stages:The partial uplift stage from Late Oligocene to Early Miocene (25-16Ma),the rapid uplift stage during Middle Miocene (14-8Ma) and the holistic and strong uplift stage since Late Miocene (after 6Ma). Secondly,the uplift of the study area shows obvious spatial differences. The uplift of Kongur-Tash Gurgan area mainly occ... |
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| Keywords: | West Kunlun Cenozoic apatite thermochronology differential uplift Qinghai-Tibet plateau. |
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