干旱区生态环境知识资源中心(Arid): Loess-Like Dust Appearance at 40 Ma in Central China

Arid

DOI	10.1029/2020PA003993
	Loess-Like Dust Appearance at 40 Ma in Central China
	Meijer, Niels; Dupont-Nivet, Guillaume; Barbolini, Natasha; Woutersen, Amber; Rohrmann, Alexander; Zhang, Yang; Liu, Xiang-Jun; Licht, Alexis; Abels, Hemmo A.; Hoorn, Carina; Tjallingii, Rik; Andermann, Christoff; Dietze, Michael; Nowaczyk, Norbert
通讯作者	Meijer, N (corresponding author), Univ Potsdam, Inst Geosci, Potsdam, Germany.
来源期刊	PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
ISSN	2572-4517
EISSN	2572-4525
出版年	2021
卷号	36 期号:3
英文摘要	Asian mineral dust has been studied extensively for its role in affecting regional-to global-scale climate and for its deposits, which enable reconstructing Asian atmospheric circulation in the past. However, the timing and origin of the dust deposits remain debated. Numerous loess records have been reported across the Asian continent with ages varying from the Miocene to the Eocene and linked to various mechanisms including global cooling, Tibetan Plateau uplift and retreat of the inland proto-Paratethys Sea. Here, we study the Eocene terrestrial mudrocks of the Xining Basin in central China and use nonparametric end-member analysis of grain-size distributions to identify a loess-like dust component appearing in the record at 40 Ma. This is coeval with the onset of high-latitude orbital cycles and a shift to predominant steppe-desert vegetation as recognized by previous studies in the same record. Furthermore, we derive wind directions from eolian dune deposits which suggest northwesterly winds, similar to the modern-day winter monsoon which is driven by a high pressure system developing over Siberia. We propose that the observed shifts at 40 Ma reflect the onset of the Siberian High interacting with westerly derived moisture at obliquity timescales and promoting dust storms and aridification in central China. The timing suggests that the onset may have been triggered by increased continentality due to the retreating proto-Paratethys Sea.
英文关键词	aridification dust loess middle Eocene Siberian High winter monsoon
类型	Article
语种	英语
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:000635265600003
WOS类目	Geosciences, Multidisciplinary ; Oceanography ; Paleontology
WOS研究方向	Geology ; Oceanography ; Paleontology
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351282
作者单位	[Meijer, Niels; Dupont-Nivet, Guillaume] Univ Potsdam, Inst Geosci, Potsdam, Germany; [Dupont-Nivet, Guillaume] Univ Rennes, CNRS, Geosci Rennes UMR CNRS 6118, Rennes, France; [Dupont-Nivet, Guillaume; Zhang, Yang] Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Minist Educ, Beijing, Peoples R China; [Barbolini, Natasha] Stockholm Univ, Dept Ecol Environm & Plant Sci, Stockholm, Sweden; [Barbolini, Natasha] Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden; [Barbolini, Natasha; Woutersen, Amber; Hoorn, Carina] Univ Amsterdam, Dept Ecosyst & Landscape Dynam ELD, Inst Biodivers & Ecosyst Dynam IBED, Amsterdam, Netherlands; [Rohrmann, Alexander] Free Univ Berlin, Inst Geol Sci, Berlin, Germany; [Liu, Xiang-Jun] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou, Peoples R China; [Licht, Alexis] Univ Washington, Dept Earth & Space Sci, Seattle, WA 98195 USA; [Abels, Hemmo A.] Delft Univ Technol, Dept Geosci & Engn, Delft, Netherlands; [Tjallingii, Rik; Andermann, Christ...
推荐引用方式 GB/T 7714	Meijer, Niels,Dupont-Nivet, Guillaume,Barbolini, Natasha,et al. Loess-Like Dust Appearance at 40 Ma in Central China[J]. 北京大学,2021,36(3).
APA	Meijer, Niels.,Dupont-Nivet, Guillaume.,Barbolini, Natasha.,Woutersen, Amber.,Rohrmann, Alexander.,...&Nowaczyk, Norbert.(2021).Loess-Like Dust Appearance at 40 Ma in Central China.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,36(3).
MLA	Meijer, Niels,et al."Loess-Like Dust Appearance at 40 Ma in Central China".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 36.3(2021).