Disentangling Sedimentary Pathways for the Pleniglacial Lower Danube Loess Based on Geochemical Signatures

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 early modern humans (EMH) into Europe. Provenance studies are usually performed small sample sets, most established methods in provenance expensive time-consuming. Here, we present results high-resolution geochemical analyses five loess-palaeosol sequences from Lower Danube Basin (LDB), a region, despite its importance trajectory for EMH, largely underrepresented studies. We compare our with data Austria, Hungary, Serbia, Ukraine. Based published literature, thus evaluate plausible sedimentary pathways LDB loess: (1) alluvium (DA) pathway, which constrains transport re-deposition detrital material by tributaries; (2) Carpathian Bending (CB) where sediment mainly transported Cretaceous Neogene flysch Eastern Bending; (3) (EC) eroded Outer Carpathians, rivers, deflated northwesterly westerly winds; (4) glaciofluvial (GF) glacial outwash plains nowadays Ukraine, (5) Black Sea (BS) originates exposed shelf Sea. data, consider DA pathway be major LDB. Especially located close Dobrogea show similarities sites Central Northeast Hungary well Northern Serbia. For northeastern part LDB, demonstrate that input sourced primary Carpathians. Mineralogical estimations render CB an additional substantial this area. influence GF negligible, whereas some minor influences BS cannot ruled out based data.