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Initial uplift of the Qilian Shan, northern Tibet since ca. 25 Ma: Implications for regional tectonics and origin of eolian deposition in Asia

文献类型：期刊论文

作者Lu, Haijian1,2; Sang, Shengping2; Wang, Ping2; Zhang, Zhiyong3; Pan, Jiawei1,2; Li, Haibing1,2
刊名GEOLOGICAL SOCIETY OF AMERICA BULLETIN
出版日期2022-09-01
卷号134期号:9-10页码:2531-2547
ISSN号0016-7606
DOI10.1130/B36242.1
英文摘要Sedimentary rocks in northern Tibet re-cord uplift of the Tibetan Plateau and its potential connection with the evolution of the central Asian aridity, therefore offering a typical example of tectonic-climate link -age. The coarse-grained conglomeratic and sandy red beds of the Lulehe Formation (Fm.) in the northern Qaidam Basin (QB), northern Tibet, have long been held as syn-orogenic sediment accumulation. There is, however, a heated debate on its source area (the Qilian Shan, the east Kunlun Shan, or Qimen Tagh) and initiation age (ca. 52, 25.5, or ca. 21 Ma, respectively). These proposals lead to distinctly different mountain build-ing processes of the giant Qilian Shan dur-ing the Cenozoic. One view argues that the Qilian Shan began to uplift substantially as a simultaneous far-field response to the India -Asia collision at 55-50 Ma. In contrast, oth-ers claim that significant rise of the Qilian Shan and thus northeastward expansion of the Tibetan Plateau did not occur until 19 or 12 Ma. Based on an updated magnetostrati-graphic framework for the Cenozoic sedi-ments in the northern QB, here we conducted structural, paleocurrent, pebble composition, zircon grain shape and surface texture, and detrital geochronological analyses of the Lu-lehe Fm., in the northern QB. The results indicate that the Lulehe Fm. was produced essentially by an initial rush of lithic clasts derived from the deformed Mesozoic sedi-mentary cover, which can be attributed to initial rise of the Qilian Shan since ca. 25 Ma. This finding leads additional credence to the argument that the onset of significant uplift of mountain ranges along the periphery of the plateau occurred nearly synchronously from the latest Oligocene through early Miocene. These prolonged elevated Meso-zoic sediments covering the fold-thrust belts of the northern QB, on the other hand, may have acted as a sustained source of material for the Miocene eolian deposits in the western Chinese Loess Plateau.
WOS关键词ALTYN-TAGH FAULT ; SCANNING-ELECTRON-MICROSCOPY ; CHINESE LOESS PLATEAU ; EASTERN QAIDAM BASIN ; U-PB GEOCHRONOLOGY ; EXHUMATION HISTORY ; KUNLUN MOUNTAINS ; TARIM BASIN ; CENOZOIC SEDIMENTS ; PROVENANCE CHANGES
资助项目Second Tibetan Plateau Scientific Expedition of the Ministry of Science and Technology of China[2019QZKK0901] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guang-dong Laboratory (Guangzhou)[GML2019ZD0201] ; China Geological Survey[DD20190059]
WOS研究方向Geology
语种英语
出版者GEOLOGICAL SOC AMER, INC
WOS记录号WOS:000854868700001
资助机构Second Tibetan Plateau Scientific Expedition of the Ministry of Science and Technology of China ; Second Tibetan Plateau Scientific Expedition of the Ministry of Science and Technology of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guang-dong Laboratory (Guangzhou) ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guang-dong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey ; Second Tibetan Plateau Scientific Expedition of the Ministry of Science and Technology of China ; Second Tibetan Plateau Scientific Expedition of the Ministry of Science and Technology of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guang-dong Laboratory (Guangzhou) ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guang-dong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey ; Second Tibetan Plateau Scientific Expedition of the Ministry of Science and Technology of China ; Second Tibetan Plateau Scientific Expedition of the Ministry of Science and Technology of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guang-dong Laboratory (Guangzhou) ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guang-dong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey ; Second Tibetan Plateau Scientific Expedition of the Ministry of Science and Technology of China ; Second Tibetan Plateau Scientific Expedition of the Ministry of Science and Technology of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guang-dong Laboratory (Guangzhou) ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guang-dong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey
源URL[http://ir.iggcas.ac.cn/handle/132A11/108361]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Lu, Haijian
作者单位1.Southern Marine Sci & Engn Guangdong Lab, Guangzhou 511458, Peoples R China
2.Chinese Acad Geol Sci, Inst Geol, Key Lab Deep Earth Dynam, Baiwanzhuang Rd 26, Beijing 100037, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Lu, Haijian,Sang, Shengping,Wang, Ping,et al. Initial uplift of the Qilian Shan, northern Tibet since ca. 25 Ma: Implications for regional tectonics and origin of eolian deposition in Asia[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2022,134(9-10):2531-2547.
APA Lu, Haijian,Sang, Shengping,Wang, Ping,Zhang, Zhiyong,Pan, Jiawei,&Li, Haibing.(2022).Initial uplift of the Qilian Shan, northern Tibet since ca. 25 Ma: Implications for regional tectonics and origin of eolian deposition in Asia.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,134(9-10),2531-2547.
MLA Lu, Haijian,et al."Initial uplift of the Qilian Shan, northern Tibet since ca. 25 Ma: Implications for regional tectonics and origin of eolian deposition in Asia".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 134.9-10(2022):2531-2547.

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来源：地质与地球物理研究所

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