气候变化领域集成服务门户(CCPortal): Decoupling of the detrital linkage between proximal dunefields and early and middle Pleistocene accumulation in the Chinese Loess Plateau: evidence from the Badain Jaran and Tengger sandy deserts

CCPortal

DOI	10.1016/j.quascirev.2021.107026
	Decoupling of the detrital linkage between proximal dunefields and early and middle Pleistocene accumulation in the Chinese Loess Plateau: evidence from the Badain Jaran and Tengger sandy deserts
	Fan, Yuxin; Wang, Fei; Yang, Guangliang; Cai, Qingsong; Zhang, Qingsong; Li, Zhenjun; Long, Xiao; Li, Xiaohu; Chen, Fahu
通讯作者	Fan, YX (通讯作者)
发表日期	2021
ISSN	0277-3791
EISSN	1873-457X
卷号	264
英文摘要	The dunefields upwind of the Chinese Loess Plateau (CLP) are widely regarded as the major source of the sediments of the CLP. To test this inference, we conducted a source tracing study using U-Pb age spectra of detrital zircons from the central Badain Jaran Desert (BJD). The results reveal that since 1.1 Ma the sediments in the central BJD have originated predominantly from the Gobi-Altay Mountains (GAMs), with a dominant Northern Tibetan Plateau (NTP) provenance at-0.7 Ma and at the present. Together with a previous study of the neighboring Tengger Desert (TD), our results support the conclusion that during 2.35-0.62 Ma the central parts of the proximal dunefields of the BJD and TD acted as reservoirs of sediments deflated mainly from strata with a GAMs-origin, with the addition of NTP-derived sediments after 0.36 Ma. Comparison of the original provenance areas of sediments in the central parts of the BJD and TD with the loess deposits in the central and southern CLP indicates that the proximal dunefields of the BJD and TD were not the dominant sources of dust transported to the CLP during early to middle Quaternary. Based on our results, combined with evidence from previous studies, we propose that NTPderived sediments dominated accumulation in the CLP for most of the Quaternary, while during 2.35-0.62 Ma the proximal dunefields, including the BJD and TD, acted only as reservoirs of sediments deflated and eroded predominantly from the GAMs. Essentially, these sandy deserts functioned as transfer stations, which, after-0.36 Ma, received increased amounts of NTP-derived sediments and subsequently supplied silt to downwind areas, including the CLP. 0 2021 Published by Elsevier Ltd.
关键词	NE TIBETAN PLATEAU QILIAN SHAN ISOTOPIC CHARACTERISTICS NEGEV DESERT DUST SOURCES NORTH CHINA PROVENANCE EVOLUTION CONSTRAINTS DEPOSITS
英文关键词	Proximal dunefields; Provenance; Northern Tibetan Plateau; Gobi-Altay Mountains; Chinese Loess Plateau
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000674619500001
来源期刊	QUATERNARY SCIENCE REVIEWS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260173
推荐引用方式 GB/T 7714	Fan, Yuxin,Wang, Fei,Yang, Guangliang,et al. Decoupling of the detrital linkage between proximal dunefields and early and middle Pleistocene accumulation in the Chinese Loess Plateau: evidence from the Badain Jaran and Tengger sandy deserts[J]. 中国科学院青藏高原研究所,2021,264.
APA	Fan, Yuxin.,Wang, Fei.,Yang, Guangliang.,Cai, Qingsong.,Zhang, Qingsong.,...&Chen, Fahu.(2021).Decoupling of the detrital linkage between proximal dunefields and early and middle Pleistocene accumulation in the Chinese Loess Plateau: evidence from the Badain Jaran and Tengger sandy deserts.QUATERNARY SCIENCE REVIEWS,264.
MLA	Fan, Yuxin,et al."Decoupling of the detrital linkage between proximal dunefields and early and middle Pleistocene accumulation in the Chinese Loess Plateau: evidence from the Badain Jaran and Tengger sandy deserts".QUATERNARY SCIENCE REVIEWS 264(2021).