青藏高原东南缘新生代剥露历史及驱动机制探讨:以临沧花岗岩地区为例
The Cenozoic Exhumation History and Forcing Mechanism of SE Tibetan Plateau:A Case Study of the Lincang Granite Area
查看参考文献107篇
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文摘
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青藏高原东南缘作为青藏高原的一个重要组成部分,新生代期间经历了显著的构造隆升、断裂活动、气候变化和河流系统的重组,这些过程均伴随着岩石的快速剥露,是当今地学研究的热点地区之一。然而,目前关于东南缘新生代期间的剥露过程及驱动机制仍存在较大争议。为此,选取青藏高原东南缘临沧花岗岩地区为研究对象,采用低温热年代学定年以及热历史模拟方法,系统分析了临沧花岗岩地区新生代期间的剥露过程并探讨了临沧花岗岩岩体快速冷却的驱动机制。认为临沧地区新生代以来经历了3期快速剥露事件,分别为晚始新世、渐新世以及中中新世。综合分析区域气候及地质数据,认为前2期事件是构造隆升所驱动,而后期则归因于亚洲季风的强降水作用。 |
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其他语种文摘
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As an important part of the Tibetan Plateau,the SE Tibetan Plateau experienced significant tectonic uplift,fault activity,climate change,and river system reorganization during the Cenozoic and these processes were accompanied with rapid rock exhumation. Therefore,the SE Tibetan Plateau has become one of the hottest areas of research focus. However,great debate exists regarding the exhumation process and forcing mechanism of the SE Tibetan Plateau during the Cenozoic. Therefore,we select the Lincang granite of the SE Tibetan Plateau as the research area. Firstly,we reconstruct the Cenozoic exhumation history of the Lincang granite area,based on multi-system low temperature thermochronology[including apatite(U-Th)/He,zircon (U-Th)/He and apatite fission track] and thermal history modeling. Secondly,we explore possible forcing mechanisms for the recorded several phases of rapid rock cooling in this area by integrating regional climatic and tectonic data. The preliminary conclusions are as follows:① The Lincang granite area experienced three phases of rapid exhumation during the Cenozoic(late Eocene,Oligocene and middle Miocene). ② Combined with regional climate and geological data,we suggest that the late Eocene rapid cooling event of Lincang granite area was mainly caused by crustal shortening,and the Oligocene rapid cooling event was associated with crustal shortening and lateral extrusion. The occurrence of these two events may be inevitably connected with the oblique subduction of the Indian plate. In contrast,the middle Miocene rapid cooling event was closely related to the Asian summer monsoon intensification. The intensified monsoon precipitation would have likely increased the power of river incision,which accelerated the geomorphic evolution of this region. |
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来源
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地球科学进展
,2021,36(4):421-441 【核心库】
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DOI
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10.11867/j.issn.1001-8166.2021.045
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关键词
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临沧花岗岩地区
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低温热年代学
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剥露历史
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驱动机制
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新生代
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地址
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兰州大学资源环境学院, 西部环境教育部重点实验室, 甘肃, 兰州, 730000
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中国科学院青藏高原地球科学卓越创新中心, 中国科学院青藏高原地球科学卓越创新中心, 北京, 100101
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山东省地震局, 山东, 济南, 250014
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中国科学院广州地球化学研究所, 广东, 广州, 510640
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中国地震局地质研究所, 北京, 100029
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-8166 |
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学科
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地质学 |
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基金
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第二次青藏高原综合科学考察项目
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文献收藏号
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CSCD:6987811
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参考文献 共
107
共6页
|
|
1.
Molnar P. Cenozoic tectonics of Asia:Effects of a continental collision:Features of recent continental tectonics in Asia can be interpreted as results of the India-Eurasia collision.
Science,1975,189(4201):419-426
|
被引
932
次
|
|
|
|
|
2.
Tapponnier P. Oblique stepwiserise and growth of the Tibet Plateau.
Science,2001,294(5547):1671-1677
|
被引
1235
次
|
|
|
|
|
3.
Yin An. Geologic evolution of the Himalayan-Tibetan orogen.
Annual Review of Earth and Planetary Sciences,2000,28(1):211-280
|
被引
1687
次
|
|
|
|
|
4.
白玲. 喜马拉雅造山带地震活动及其相关地质灾害.
地球科学进展,2019,34(6):629-639
|
被引
7
次
|
|
|
|
|
5.
李吉均. 青藏高原隆起与环境变化研究.
科学通报,1998,43(15):1568-1574
|
被引
20
次
|
|
|
|
|
6.
刘东生. 亚洲季风系统的起源和发展及其与两极冰盖和区域构造运动的时代耦合性.
第四纪研究,1998,3:194-204
|
被引
163
次
|
|
|
|
|
7.
潘保田. 青藏高原;全球气候变化的驱动机与放大器.I.新生代气候变化的基本特征.
兰州大学学报:自然科学版,1995,31(3):120-128
|
被引
30
次
|
|
|
|
|
8.
潘保田. 青藏高原:全球气侯变化的驱动机与放大器Ⅱ.青藏高原隆起的基本过程.
兰州大学学报:自然科学版,1995,31(4):160-167
|
被引
33
次
|
|
|
|
|
9.
潘保田. 青藏高原:全球气候变化的驱动机与放大器.III.青藏高原降起对气候变化的影响.
兰州大学学报:自然科学版,1996,32(1):108-115
|
被引
163
次
|
|
|
|
|
10.
An Zhisheng. Evolution of Asian monsoons and phased uplift of the Himalaya-Tibetan Plateau since Late Miocene times.
Nature,2001,411:62-66
|
被引
653
次
|
|
|
|
|
11.
王修喜. 低温热年代学在青藏高原构造地貌发育过程研究中的应用.
地球科学进展,2017,32(3):234-244
|
被引
9
次
|
|
|
|
|
12.
Clark M K. Topographic ooze:Building the eastern margin of Tibet by lower crustal flow.
Geology,2000,28(8):703-706
|
被引
493
次
|
|
|
|
|
13.
Dupont-Nivet G. Tibetan Plateau aridification linked to global cooling at the Eocene-Oligocene transition.
Nature,2007,445:635-638
|
被引
105
次
|
|
|
|
|
14.
Harrison T M. An early Miocene transition in deformation regime within the Red River fault zone,Yunnan,and its significance for Indo-Asian tectonics.
Journal of Geophysical Research:Solid Earth,1992,97(B5):7159-7182
|
被引
9
次
|
|
|
|
|
15.
Molnar P. Mantle dynamics, uplift of the Tibetan Plateau,and the Indian Monsoon.
Reviews of Geophysics,1993,31(4):357-396
|
被引
386
次
|
|
|
|
|
16.
Royden L H. Surface deformation and lower crustal flow in eastern Tibet.
Science,1997,276(5313):788-790
|
被引
584
次
|
|
|
|
|
17.
方小敏. 青藏高原隆升阶段性.
科技导报,2017,35(6):42-50
|
被引
19
次
|
|
|
|
|
18.
张波. 滇西澜沧江构造带及邻区几何学、运动学和构造年代学分析.
地质科学,2009,44(3):889-909
|
被引
8
次
|
|
|
|
|
19.
Cao Kai. Oligocene-Early Miocene topographic relief generation of southeastern Tibet triggered by thrusting.
Tectonics,2019,38(1):374-391
|
被引
18
次
|
|
|
|
|
20.
Liu Jing. Multiple episodes of fast exhumation since Cretaceous in southeast Tibet,revealed by low-temperature thermochronology.
Earth and Planetary Science Letters,2018,490:62-76
|
被引
1
次
|
|
|
|
|
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