干旱区生态环境知识资源中心(Arid): Disentangling Sedimentary Pathways for the Pleniglacial Lower Danube Loess Based on Geochemical Signatures

Arid

DOI	10.3389/feart.2021.600010
	Disentangling Sedimentary Pathways for the Pleniglacial Lower Danube Loess Based on Geochemical Signatures
	Potter, Stephan; Veres, Daniel; Baykal, Yunus; Nett, Janina J.; Schulte, Philipp; Hambach, Ulrich; Lehmkuhl, Frank
通讯作者	Potter, S (corresponding author), Rhein Westfal TH Aachen, Dept Geog, Chair Phys Geog & Geoecol, Aachen, Germany.
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2021
卷号	9
英文摘要	The source of aeolian sediments such as loess has been investigated since decades. Reliable knowledge on potential dust sources is crucial to understand past climatic and environmental conditions accompanying the dispersal of early modern humans (EMH) into Europe. Provenance studies are usually performed on small sample sets and most established methods are expensive and time-consuming. Here, we present the results of high-resolution geochemical analyses performed on five loess-palaeosol sequences from the Lower Danube Basin (LDB), a region, despite its importance as a trajectory for EMH, largely underrepresented in loess provenance studies. We compare our results with geochemical data of loess-palaeosol sequences from Austria, Hungary, Serbia, and Ukraine. Based on published literature, we thus evaluate five plausible sedimentary pathways for the LDB loess: 1) the Danube alluvium (DA) pathway, which constrains the transport and re-deposition of detrital material by the Danube and its tributaries; 2) the Carpathian Bending (CB) pathway, where sediment is mainly transported from the Cretaceous to Neogene flysch of the Eastern Carpathian Bending; 3) the Eastern Carpathian (EC) pathway, in which sediment is eroded from the flysch of the Outer Eastern Carpathians, transported by rivers, and deflated by northwesterly to westerly winds; 4) the glaciofluvial (GF) pathway, where dust is deflated from glacial outwash plains in nowadays Ukraine, and 5) the Black Sea (BS) pathway, where dust originates from the exposed shelf of the Black Sea. Based on geochemical data, we consider the DA pathway to be the major sediment trajectory for loess in the LDB. Especially the sequences located close to the Danube and the Dobrogea show similarities to sites in Central and Northeast Hungary as well as Northern Serbia. For the northeastern part of the LDB, we demonstrate that dust input is mainly sourced from primary material from the Eastern Carpathians. Mineralogical estimations and geochemical data render the CB pathway as an additional substantial source of detrital material for the loess of this area. We consider the influence of the GF pathway in the LDB as negligible, whereas some minor influences of the BS pathway cannot be ruled out based on geochemical data.
英文关键词	loess provenance aeolian sediments Southeastern Europe geochemistry sedimentary pathways
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000646613700001
WOS关键词	SECTION SOUTHERN SERBIA ; LAST GLACIAL MAXIMUM ; EUROPEAN LOESS ; PALEOSOL SEQUENCE ; MAGNETIC-SUSCEPTIBILITY ; GRAIN-SIZE ; PALAEOWIND DIRECTIONS ; QUATERNARY SEDIMENTS ; DESERT LOESS ; PLEISTOCENE
WOS类目	Geosciences, Multidisciplinary
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/2XILL650/368843
作者单位	[Potter, Stephan; Veres, Daniel; Nett, Janina J.; Schulte, Philipp; Lehmkuhl, Frank] Rhein Westfal TH Aachen, Dept Geog, Chair Phys Geog & Geoecol, Aachen, Germany; [Veres, Daniel] Romanian Acad, Inst Speleol, Cluj Napoca, Romania; [Baykal, Yunus] Uppsala Univ, Dept Earth Sci, Uppsala, Sweden; [Hambach, Ulrich] Univ Bayreuth, BayCEER, Bayreuth, Germany; [Hambach, Ulrich] Univ Bayreuth, Geomorphol, Bayreuth, Germany
推荐引用方式 GB/T 7714	Potter, Stephan,Veres, Daniel,Baykal, Yunus,et al. Disentangling Sedimentary Pathways for the Pleniglacial Lower Danube Loess Based on Geochemical Signatures[J],2021,9.
APA	Potter, Stephan.,Veres, Daniel.,Baykal, Yunus.,Nett, Janina J..,Schulte, Philipp.,...&Lehmkuhl, Frank.(2021).Disentangling Sedimentary Pathways for the Pleniglacial Lower Danube Loess Based on Geochemical Signatures.FRONTIERS IN EARTH SCIENCE,9.
MLA	Potter, Stephan,et al."Disentangling Sedimentary Pathways for the Pleniglacial Lower Danube Loess Based on Geochemical Signatures".FRONTIERS IN EARTH SCIENCE 9(2021).