The genesis, development, and evolution of original vertical joints in loess

doi:10.1016/j.earscirev.2021.103526

	The genesis, development, and evolution of original vertical joints in loess
	Feng, Li 2,4,8; Zhang, Maosheng 4,5; Jin, Zhao 2,6; Zhang, Shanshan 7; Sun, Pingping 4,5; Gu, Tianfeng 1; Liu, Xinbo 11; Lin, Henry 10; An, Zhisheng 2; Peng, Jianbing 9
刊名	EARTH-SCIENCE REVIEWS
	2021-03-01
卷号	214 页码:26
关键词	Loess landscape Loess morphology Loess anisotropy Structural evolution Subsurface
ISSN号	0012-8252
DOI	10.1016/j.earscirev.2021.103526
通讯作者	Jin, Zhao(jinzhao@ieecas.cn) ; Guo, Li(liguo01@scu.edu.cn)
英文摘要	Original vertical joints (OVJs), which are highly correlated with loess anisotropy, have been considered a non-tectonic source of extensive erosion, gully development, and landform fragmentation in loess regions such as the Chinese Loess Plateau. The existing literature discussing the origin of OVJs lacks a systematic overview of the current theories related to OVJ genetic mechanisms, development patterns, theoretical models, and relationships between OVJ morphologies and loess historical sedimentary processes (LHSP) since the Quaternary. By reviewing the key factors governing the formation and evolution of OVJs in loess, we present both a conceptual framework and a case study to demonstrate the genesis and dynamics of OVJs in the loess landscape. We propose that when the driving force produced by the hydro-mechanical coupling regime exceeds the resistance force due to tensile strength, OVJs appear along the boundaries between different structural units within the loess soils. Influenced by the loess sedimentary effects in the later period (i.e., LHSP), such as loess pile thickening, drying-wetting cycles, and weathering, OVJs formed in historical loess frequently degrade and expand. Based on the knowledge of OVJ dynamics, we reconstruct the evolutionary trajectory of OVJs in the loess profile from the LHSP perspective, which is further confirmed by field observations on OVJ morphologies under different local microtopographical and geological conditions. The new perspective on the genesis, development, and evolution of OVJs enhances theoretical understanding of the formation of anisotropy and structural evolution in loess, which helps describe and model subsurface hydrology and geohazard risks in loess regions.
资助项目	National Key R&D Program of China[2018YFC1504701] ; National Natural Science Foundation of China[41790444] ; National Natural Science Foundation of China[41530640] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000]
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000633029800002
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16216]
专题	地球环境研究所_生态环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Jin, Zhao; Guo, Li
作者单位	1.Northwest Univ, Dept Geol, Xian 710069, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 3.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Water Resource & Hydropower, Chengdu 610065, Peoples R China 4.Xi An Jiao Tong Univ, Dept Civil Engn, Sch Human Settlements & Civil Engn, Xian, Peoples R China 5.China Geol Survey, Key Lab Geohazard Loess Area, Minist Nat Resources, Xian Ctr, Xian 710054, Peoples R China 6.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 7.China Natl Adm Coal Geol, Aerial Photogrammetry & Remote Sensing Bur, Xian 710199, Peoples R China 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 9.Changan Univ, Coll Geol Engn & Geomat, Xian 710054, Peoples R China 10.Penn State Univ, Dept Ecosyst Sci & Management, University Pk, PA 16802 USA
推荐引用方式 GB/T 7714	Feng, Li,Zhang, Maosheng,Jin, Zhao,et al. The genesis, development, and evolution of original vertical joints in loess[J]. EARTH-SCIENCE REVIEWS,2021,214:26.
APA	Feng, Li.,Zhang, Maosheng.,Jin, Zhao.,Zhang, Shanshan.,Sun, Pingping.,...&Guo, Li.(2021).The genesis, development, and evolution of original vertical joints in loess.EARTH-SCIENCE REVIEWS,214,26.
MLA	Feng, Li,et al."The genesis, development, and evolution of original vertical joints in loess".EARTH-SCIENCE REVIEWS 214(2021):26.