首页|Multiple Uplift and Exhumation of the Southeastern Tibetan Plateau:Evidence from Low-Temperature Thermochronology

Multiple Uplift and Exhumation of the Southeastern Tibetan Plateau:Evidence from Low-Temperature Thermochronology

扫码查看
原文链接
  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
Since the Cenozoic,the Tibetan Plateau has experienced large-scale uplift and outgrowth due to the India-Asia collision.However,the mechanism and timing of these tectonic processes still remain debated.Here,using apatite fission track dating and inverse thermal modeling,we explore the mechanism of different phases of rapid cooling for different batholiths and intrusions in the southeastern Tibetan Plateau.In contrast to previous views,we find that the coeval granitic batholith exposed in the same tectonic zone experienced differential fast uplift in different sites,indicating that the present Tibetan Plateau was the result of differential uplift rather than the entire lithosphere uplift related to lithospheric collapse during Cenozoic times.In addition,we also suggest that the 5-2 Ma mantle-related magmatism should be regarded as the critical trigger for the widely coeval cooling event in the southeastern Tibetan Plateau,because it led to the increase in atmospheric CO2 level and a hotter upper crust than before,which are efficient for suddenly fast rock weathering and erosion.Finally,we propose that the current landform of the southeastern Tibetan Plateau was the combined influences of tectonic and climate.

apatite fission trackrapid coolingdifferential upliftmagmatismsoutheastern Tibetan Plateau

WU Limin、PENG Touping、FAN Weiming、ZHAO Guochun、GAO Jianfeng、DONG Xiaohan、PENG Shili、MIN Kang、Tin Aung MYINT

展开 >

State Key Laboratory of Isotope Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China

Chinese Academy of Sciences Center for Excellence in Deep Earth Science,Guangzhou 510640,China

University of Chinese Academy of Sciences,Beijing 100049,China

Chinese Academy of Sciences Center for Excellence in Tibetan Plateau Earth Sciences,Beijing 100101,China

Department of Earth Sciences,The University of Hong Kong,Hong Kong 999077,China

State Key Laboratory of Ore Deposit Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550081,China

Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai,Guangdong 519085,China

Department of Geology,University of Mandalay,Mandalay 05011,Myanmar

展开 >

国家自然科学基金国家自然科学基金国家自然科学基金Second Tibetan Plateau Scientific Expedition and Research Program(STEP)Hong Kong RGC GRFHKU Internal Grants for Member of Chinese Academy of Sciencesfor Distinguished Research Achievement Award

4202530141730213418908312019QZKK070217307918102009906102010100

2024

10.1111/1755-6724.15164

地质学报(英文版)
中国地质学会

地质学报(英文版)

CSTPCD
影响因子：1.414
ISSN：1000-9515
年,卷(期)：2024.98(3)
  • 82