气候变化领域集成服务门户(CCPortal): Late Cretaceous-Cenozoic basin evolution and topographic growth of the Hoh Xil Basin, central Tibetan Plateau

CCPortal

DOI	10.1130/B31769.1
	Late Cretaceous-Cenozoic basin evolution and topographic growth of the Hoh Xil Basin, central Tibetan Plateau
	Li L.; Garzione C.N.; Pullen A.; Zhang P.; Li Y.
发表日期	2018
ISSN	167606
起始页码	499
结束页码	521
卷号	130 期号:2021-03-04
英文摘要	The Hoh Xil Basin in the central Tibetan Plateau was the locus of thick accumulation of terrestrial sediments from the Late Cretaceous to Neogene, providing an archive of regional tectonic activity both before and after initiation of the early Paleogene India-Asia collision. This work focuses on the stratigraphy and provenance of the poorly studied western part of the Hoh Xil Basin. Lithostratigraphy, carbonate oxygen isotopic composition, and deformation features suggest that the braided river and alluvial-fan that dominated the Kangtuo Formation in the southern West Hoh Xil subbasin can be correlated with the Late Cretaceous-early Eocene Fenghuoshan Group deposits of the East Hoh Xil subbasin, whereas deltaic, shallow lacustrine, and evaporite strata of the Suonahu Formation in the centralnorthern West Hoh Xil subbasin can be correlated to the middle Eocene-early Oligocene Yaxicuo Formation of the East Hoh Xil subbasin. These observations suggest that the eastern and western parts of Hoh Xil Basin evolved as a unified basin during Late Cretaceous-Oligocene time. Detrital zircon U-Pb ages indicate that the Kangtuo Formation and Fenghuoshan Group mainly received detritus from the Qiangtang terrane to the south, whereas the age probability distributions of the Suonahu Formation and Yaxicuo Formation sandstones are more similar to zircon ages reported for the northern Qiangtang terrane and within the Hoh Xil terrane. We favor a tectonic model with Late Cretaceous-early Eocene contractional deformation and topographic growth of the south-central Qiangtang terrane that caused flexural subsidence of the south-central Hoh Xil region within a retroarc foreland basin, relative to the Tanggula thrusts in central Qiangtang. Following the onset of India-Asia collision, the locus of contractional deformation moved northward, marked by activity of the Fenghuoshan and Hoh Xil thrust systems within the Hoh Xil region, and resulting in transformation of the Hoh Xil foreland basin to a hinterland basin. We suggest that both middle Eocene to late Oligocene uppercrustal shortening and associated thickening of the lower crust and mantle lithosphere as well as late Oligocene to Miocene loss of dense mantle lithosphere contributed to the topographic growth of the Hoh Xil Basin. © 2017 Geological Society of America.
语种	英语
来源期刊	Bulletin of the Geological Society of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185071
作者单位	Department of Earth and Environmental Sciences, University of Rochester, Rochester, NY 14627, United States; Department of Geosciences, University of Arizona, Tucson, AZ 85721, United States; Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710075, China; Department of Earth and Environmental Sciences, University of Texas at Arlington, Arlington, TX 76019, United States
推荐引用方式 GB/T 7714	Li L.,Garzione C.N.,Pullen A.,et al. Late Cretaceous-Cenozoic basin evolution and topographic growth of the Hoh Xil Basin, central Tibetan Plateau[J],2018,130(2021-03-04).
APA	Li L.,Garzione C.N.,Pullen A.,Zhang P.,&Li Y..(2018).Late Cretaceous-Cenozoic basin evolution and topographic growth of the Hoh Xil Basin, central Tibetan Plateau.Bulletin of the Geological Society of America,130(2021-03-04).
MLA	Li L.,et al."Late Cretaceous-Cenozoic basin evolution and topographic growth of the Hoh Xil Basin, central Tibetan Plateau".Bulletin of the Geological Society of America 130.2021-03-04(2018).