Mesozoic-Cenozoic exhumation history of the Qimen Tagh Range, northeastern margins of the Tibetan Plateau: Evidence from apatite fission track analysis
Mesozoic-Cenozoic exhumation history of the Qimen Tagh Range, northeastern margins of the Tibetan Plateau: Evidence from apatite fission track analysis
复制标题
青藏高原东北缘祁门山脉中、新生代折返历史：磷灰石裂变径迹分析的证据
DOI：
10.1016/j.gr.2018.01.014
复制
发表时间：
2018-06
影响因子：
6.1
通讯作者：
Zheng Youwei
中科院分区：
文献类型：
--
作者：
Wang Yadong;Zheng Jianjing;Zheng Youwei
它是由一系列起源于冈瓦纳超大陆的东西向伸展块体/地体组成的。因此，青藏高原已成为世界新生代地质研究的重要焦点之一。本文对祁门山脉北部的6个花岗岩样品进行了磷灰石裂变径迹分析。这些热时学数据表明，祁门山北段经历了~262 ~ 240 Ma、~165 ~ 160 Ma、105 ~ 80 Ma和~14/10 ~ 0 Ma四个阶段的降温历史。揭示了晚二叠世—中三叠世青藏高原北缘（即祁门高原和东昆仑山）的初始隆升将古柴达木盆地与古科尔溪盆地分离开来。因此，这些北祁门塔格岭降温事件很可能与中生代羌塘地体和拉萨地体的历时碰撞以及新生代发生的印-欧亚大陆碰撞相对应。
The Tibetan Plateau (TP) is the highest plateau in the world. It is composed of a series ofE-W stretched blocks/terranes originating from the Gondwana super-continent. As such, the TP has become one of the world's critical foci of Cenozoic geological studies. The Paleozoic and Mesozoic tectonic histories of the Proto-Tibetan region played an important role in the Cenozoic evolution of the TP. Understanding the pre-Cenozoic building of the Qimen Tagh Range located along the northeastern margins of the TP will help to constrain the development of the northern boundaries of the Proto-Tibetan region. Here, we present apatite fission track data for six granite samples along two vertical transects in the North Qimen Tagh Range. These thermochronometric data indicate that the North Qimen Tagh Range experienced a four-stage cooling history, i.e., during the periods ~262–240 Ma, ~165–160 Ma, 105–80 Ma and ~14/10–0 Ma. They reveal that the initial uplift of the northern margins of the TP (i.e., the Qimen Tagh and East Kunlun mountain ranges) during the Late Permian-Middle Triassic separated the paleo-Qaidam Basin from the paleo-Hoh Xil Basin. We therefore suggest that these North Qimen Tagh Range cooling events most probably correspond with the diachronous collisions of the Qiangtang and Lhasa terranes during the Mesozoic, as well as the Indo-Eurasian continental collision which occurred during the Cenozoic.
登录
查看更多内容
影响因子：
5
作者：
K. Crowley;M. Cameron;R. Schaefer
通讯作者：
K. Crowley;M. Cameron;R. Schaefer
影响因子：
5
作者：
R. A. Wolf;K. Farley;L. Silver
通讯作者：
R. A. Wolf;K. Farley;L. Silver
东昆仑（中国西部）新生代漫长的侵蚀期：碎屑磷灰石（U-Th）/He年龄对青藏高原北缘造山开始的制约
影响因子：
3
作者：
Shi Wenbei;Wang Fei;Wu Lin;Yang Liekun;Zhang Weibin;Wang Yinzhi
通讯作者：
Wang Yinzhi
影响因子：
3.9
作者：
Barbarand, J;Hurford, T;Carter, A
通讯作者：
Carter, A
影响因子：
5.8
作者：
A. Draut;P. Clift
通讯作者：
A. Draut;P. Clift