干旱区生态环境知识资源中心(Arid): Damp- to dry aeolian systems: Sedimentology, climate forcing, and aeolian accumulation in the Late Cretaceous Liyou Basin, South China

Arid

DOI	10.1016/j.sedgeo.2021.106030
	Damp- to dry aeolian systems: Sedimentology, climate forcing, and aeolian accumulation in the Late Cretaceous Liyou Basin, South China
	Yu, Xiaocan; Wang, Chunlian; Bertolini, Gabriel; Liu, Chenglin; Wang, Jiuyi
通讯作者	Yu, XC ; Wang, CL (corresponding author), Chinese Acad Geol Sci, Inst Mineral Resources, MNR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China.
来源期刊	SEDIMENTARY GEOLOGY
ISSN	0037-0738
EISSN	1879-0968
出版年	2021
卷号	426
英文摘要	Aeolian desert systems were widely distributed in South China during the Late Cretaceous. These systems developed under the control of subtropical highs and a monsoon climate. They reveal the evolution of palaeodimate and palaeogeography and the regional palaeowind pattern in the South China interior during this period. Based on the analyses of sedimentology and facies architecture, this study examines and reassesses the aeolian succession of the Upper Cretaceous Daijiaping Formation in the southern Liyou Basin of southeast China This aeolian desert succession records aeolian dune, dry and damp interdune and aeolian sandsheet sedimentation in streamflow, fluvial channel and overbank settings. Aeolian dune deposits comprise low-angle dune plinth strata and superimposed sets of cross-strata bounded by a hierarchy of bounding surfaces. The deposits record two morphological types of compound crescentic dunes and complex linear dunes. Palaeowind direction in the Liyou desert agrees with the subtropical high-pressure westerly and northeasterly wind pattern that existed in the mid to low latitudes of the Northern Hemisphere, in conjunction with possible monsoon climate conditions during the Late Cretaceous. The fault-bounded basin in which the succession accumulated experienced a high subsidence rate and a high supply and availability of windblown sand, which ensured hundreds of metres of thick accumulation of the dune field system. The occurrence of a near-surface water table and soft-sediment deformation in the aeolian dune foresets indicates that the monsoon rains could have recharged the groundwater system and resulted in episodes of relative water-table rise, which played an important role in the accumulation and preservation of aeolian systems in the Liyou desert basin. Gradual and progressive subsidence of the aeolian succession combined with water-table fluctuations allowed the preservation of the aeolian accumulation system. (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	Daijiaping Formation Preservation Sandsheet Interdune Water table
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000722077100005
WOS关键词	RESOLUTION SEQUENCE STRATIGRAPHY ; CEDAR-MESA SANDSTONE ; ERG-MARGIN SYSTEM ; FACIES ARCHITECTURE ; PARANA BASIN ; SAND SEA ; INTERDUNE DEPOSITS ; LONGITUDINAL DUNES ; BOTUCATU FORMATION ; BOUNDING SURFACES
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374072
作者单位	[Yu, Xiaocan; Wang, Chunlian; Liu, Chenglin; Wang, Jiuyi] Chinese Acad Geol Sci, Inst Mineral Resources, MNR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China; [Bertolini, Gabriel] Univ Fed Rio Grande do Sul, Inst Geociencias, BR-90040060 Porto Alegre, RS, Brazil
推荐引用方式 GB/T 7714	Yu, Xiaocan,Wang, Chunlian,Bertolini, Gabriel,et al. Damp- to dry aeolian systems: Sedimentology, climate forcing, and aeolian accumulation in the Late Cretaceous Liyou Basin, South China[J],2021,426.
APA	Yu, Xiaocan,Wang, Chunlian,Bertolini, Gabriel,Liu, Chenglin,&Wang, Jiuyi.(2021).Damp- to dry aeolian systems: Sedimentology, climate forcing, and aeolian accumulation in the Late Cretaceous Liyou Basin, South China.SEDIMENTARY GEOLOGY,426.
MLA	Yu, Xiaocan,et al."Damp- to dry aeolian systems: Sedimentology, climate forcing, and aeolian accumulation in the Late Cretaceous Liyou Basin, South China".SEDIMENTARY GEOLOGY 426(2021).