A New Sediment Accumulation Model of Cenozoic Depositional Ages From the Qaidam Basin, Tibetan Plateau

doi:10.1029/2018JF004645

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	A New Sediment Accumulation Model of Cenozoic Depositional Ages From the Qaidam Basin, Tibetan Plateau
	Cheng, Feng 1,2; Garzione, Carmala 1; Jolivet, Marc 3; Guo, Zhaojie 4; Zhang, Daowei 5; Zhang, Changhao 5
通讯作者	Cheng, Feng(cfcf.chengfeng@gmail.com)
	2018-11-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
ISSN	2169-9003
卷号	123 期号:11 页码:3101-3121
摘要	Two debated age models, with a basal age of ~50Ma versus ~30Ma, are proposed for the depositional age of Cenozoic strata within the Qaidam basin result in a diverse understanding of the initial pattern of deformation in the northern Tibetan Plateau. To evaluate these age models, we integrated isopach maps within the basin with published thermochronology data from surrounding ranges to balance the sediments preserved in the basin with materials eroded in the drainage area. When following the traditional ~50Ma age model, the total volume of material eroded from the surrounding source area is 4.40.3x10(5)km(3). Using instead the ~30Ma age model for the basal Lulehe Formation and related revisions to the basin chronology, the volume of eroded material is calculated at 3.50.2x10(5)km(3), which provides a better match to the calculated total volume of solid grains that are preserved in the basin (2.80.1x10(5)km(3)). However, growth strata revealed in seismic profiles along the Southern Qaidam Thrust suggest reverse-faulting began during the deposition of Oligocene-Miocene strata. Following the ~50Ma age model, the onset time of faulting along the Southern Qaidam Thrust is ~35.5Ma, consistent with previous thermochronology results. If both age models are correct, then this requires a significant time-transgressive nature to basin fill that allows for older ages of deposition in the southern part of the basin. This study highlights the need for further effort to determine the depositional age of the strata in the southern and western parts of the Qaidam basin.
关键词	Tibetan Plateau Qaidam basin Cenozoic basin fill erosion depositional age
DOI	10.1029/2018JF004645
关键词[WOS]	ALTYN-TAGH FAULT ; TECTONIC EVOLUTION ; NORTHWEST CHINA ; TIAN-SHAN ; LULEHE FORMATION ; TARIM BASIN ; RESERVOIR CHARACTERISTICS ; NORTHEASTWARD GROWTH ; NORTHERN TIBET ; HEXI CORRIDOR
收录类别	SCI ; SCI
语种	英语
资助项目	National Science Foundation[EAR-1348005] ; National Science Foundation[OISE-1545859] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG1701] ; National Science and Technology Major Project of China[2017ZX05008-001]
WOS研究方向	Geology
项目资助者	National Science Foundation ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS ; National Science and Technology Major Project of China
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000453003800020
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：41[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14529
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Cheng, Feng
作者单位	1.Univ Rochester, Dept Earth & Environm Sci, Rochester, NY 14627 USA 2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian, Shaanxi, Peoples R China 3.Univ Rennes 1, Observ Sci lUnivers, Lab Geosci Rennes, CNRS,UMR6118, Rennes, France 4.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Minist Educ, Beijing, Peoples R China 5.PetroChina, Qinghai Oilfield Co, Dunhuang, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Feng,Garzione, Carmala,Jolivet, Marc,et al. A New Sediment Accumulation Model of Cenozoic Depositional Ages From the Qaidam Basin, Tibetan Plateau[J]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,2018,123(11):3101-3121.
APA	Cheng, Feng,Garzione, Carmala,Jolivet, Marc,Guo, Zhaojie,Zhang, Daowei,&Zhang, Changhao.(2018).A New Sediment Accumulation Model of Cenozoic Depositional Ages From the Qaidam Basin, Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,123(11),3101-3121.
MLA	Cheng, Feng,et al."A New Sediment Accumulation Model of Cenozoic Depositional Ages From the Qaidam Basin, Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE 123.11(2018):3101-3121.