caa a22 4500 475827376 CHVBK 20180406123832.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1007/s005310000109 doi (NATIONALLICENCE)springer-10.1007/s005310000109 Sea-ice transport of riverine particles from the Laptev Sea to Fram Strait based on clay mineral studies [Elektronische Daten] [Dirk Dethleff, Volker Rachold, Matthias Tintelnot, Martin Antonow] Abstract.: The aim of this study was to identify pathways and processes of modern sediment transport from the Siberian hinterland to the Laptev Sea and further to the Arctic Ocean. Clay mineral analyses were performed on riverine suspended particulate material (SPM), surface sediments of the Laptev Sea shelf, and sea-ice sediments (SIS). Material collected during seven expeditions was included in this study. Clay mineral assemblages are used to decipher the distribution of riverine sediments on the shallow Laptev Sea shelf, the entrainment of fine particles into newly forming ice, and the transport of SIS from the Laptev Sea towards the ablation areas. A cluster analysis of our data set shows that the clay mineral assemblages of Laptev Sea shelf sediments and SIS are controlled mainly by the input of riverine SPM supplied by the Khatanga, Lena, and Yana Rivers. Whereas the western shelf clay-mineral province is characterized by enhanced smectite concentrations supplied by the Khatanga River, the eastern Laptev Sea is dominated by illite discharged through the Lena and Yana Rivers. The SIS smectite concentration serves as an indicator for sediment source areas on the circum-Arctic shelves. Subsequently, the Transpolar Drift can be distinguished into a Siberian Branch fed from the eastern Kara Sea and the western Laptev Sea, and a Polar Branch originating from the eastern Laptev Sea. Springer-Verlag, 2000 Laptev Sea Riverine suspended particulate material Sediment transport Sea-ice sediments Clay minerals Transpolar drift nationallicence Dethleff Dirk Geomar Research Center of Marine Geosciences, Wischhofstrasse 1-3, 24148 Kiel, Germany aut Rachold Volker Afred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Telegrafenberg A43, 14473 Potsdam, Germany aut Tintelnot Matthias BGI AG, Rischerstrasse 12, 69123 Heidelberg, Germany aut Antonow Martin Freiberg Academy of Mining and Technology, Institute of Geology, Bernhard-von-Cotta-Strasse 2, 09596 Freiberg, Germany aut https://doi.org/10.1007/s005310000109 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005310000109 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dethleff Dirk Geomar Research Center of Marine Geosciences, Wischhofstrasse 1-3, 24148 Kiel, Germany aut NATIONALLICENCE 700 1- Rachold Volker Afred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Telegrafenberg A43, 14473 Potsdam, Germany aut NATIONALLICENCE 700 1- Tintelnot Matthias BGI AG, Rischerstrasse 12, 69123 Heidelberg, Germany aut NATIONALLICENCE 700 1- Antonow Martin Freiberg Academy of Mining and Technology, Institute of Geology, Bernhard-von-Cotta-Strasse 2, 09596 Freiberg, Germany aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer