Cenozoic growth of the Eastern Kunlun Range (northern Tibetan Plateau): evidence from sedimentary records in the southwest Qaidam Basin
Cenozoic growth of the Eastern Kunlun Range (northern Tibetan Plateau): evidence from sedimentary records in the southwest Qaidam Basin
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东昆仑山脉（青藏高原北部）的新生代生长：来自柴达木盆地西南部沉积记录的证据
DOI：
10.1080/00206814.2020.1731717
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发表时间：
2020-02
影响因子：
2.6
通讯作者：
Wagreich Michael
中科院分区：
文献类型：
--
作者：
Xia Guoqing;Wu Chihua;Li Gaojie;Li Guangwei;Yi Haisheng;Wagreich Michael
青藏高原北方柴达木盆地新生代沉积充填对研究盆地边缘山脉的隆升历史和构造演化具有重要意义。沿着西南盆地边缘，长尾台地区新生界~3000 m厚的层序中保存了连续的记录。剖面上部由边缘和深湖沉积向湖泊三角洲-冲积扇沉积的转换，表明沉积物输运系统的扩张和日益向盆内推进。砂岩岩石学、古水流分析和锆石U-Pb年代学的物源资料表明，自下干柴沟组上部沉积以来，东昆仑山脉一直为柴达木盆地西南部提供物质，表明东昆仑山脉的最新隆升期在晚始新世（35.5Ma以前）之前。然而，沉积体系的变化表明，在下油砂山组和上油砂山组之间的沉积物源有明显的转变。我们认为，新生代东昆仑山脉经历了向北的缩短侵入柴达木盆地。早中新世，阿尔金走滑断裂的重新活动导致阿尔金山脉的广泛地形增长，为柴达木盆地西部提供了主要的沉积物源。随后，约15 Ma以来的祁门塔格次岭隆升为盆地提供了新的物源。
The Cenozoic sedimentary infill of the Qaidam Basin in the northern Tibetan Plateau provide significant insights into the uplift history and the tectonic evolution of the basin-bounding mountain ranges. Along the SW basin margin, a continuous record is preserved in the ~3000-m-thick Cenozoic.succession at the Changweitai area. An up-section switch from marginal and deep lacustrine sedimentation to lacustrine delta-alluvial fan deposition indicates progradation and increasingly basinward advance of sediment transportation systems. Provenance data from sandstone petrology, palaeocurrent analysis and zircon U-Pb geochronology suggest that the Eastern Kunlun Range has been consistently providing material to the SW Qaidam basin since the deposition of the upper Xiaganchaigou Formation, indicating its latest uplift episode prior to the Late Eocene (before 35.5 Ma). However, variation in depositional systems indicates a clear shift in sediment provenance between the deposition of the Xiayoushashan Formation and the Shangyoushashan Formation. We propose that the Cenozoic Eastern Kunlun Range experienced a northward encroachment of shortening into the Qaidam Basin. During the Early Miocene, extensive topographic growth of the Altyn Tagh Range caused by reactivation of the Altyn Tagh strike-slip fault, provided the main source of sediment for the western Qaidam basin. Subsequently, a new source for the basin was provided by the uplifting Qimen Tagh subrange since ~15 Ma.
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DOI：
10.1016/s1251-8050(00)88495-5
发表时间：
1999-11
期刊：
Comptes Rendus De L Academie Des Sciences Serie Ii Fascicule A-sciences De La Terre Et Des Planetes
影响因子：
--
作者：
M. Jolivet;F. Roger;N. Arnaud;M. Brunel;P. Tapponnier;Diane Seward
通讯作者：
M. Jolivet;F. Roger;N. Arnaud;M. Brunel;P. Tapponnier;Diane Seward
影响因子：
2.9
作者：
A. Weislogel
通讯作者：
A. Weislogel
DOI：
10.30965/9783846743737_017
发表时间：
2007
期刊：
--
影响因子：
--
作者：
I. A. J. Maccarthy
通讯作者：
I. A. J. Maccarthy
西藏中部东昆仑山的中新生代演化及其对印亚碰撞期间盆地演化的意义
影响因子：
2.4
作者：
Wu Chen;Zuza Andrew V;Zhou Zhiguang;Yin An;McRivette Michael W;Chen Xuanhua;Ding Lin;Geng Jianzhen
通讯作者：
Geng Jianzhen
影响因子：
3.5
作者：
Q. Ding;Shaoyong Jiang;F. Sun
通讯作者：
Q. Ding;Shaoyong Jiang;F. Sun