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Modern river discharge and pathways of supplied material in the Eurasian Arctic Ocean: evidence from mineral assemblages and major and minor element distribution

Sea-ice transport of riverine particles from the Laptev Sea to Fram Strait based on clay mineral studies

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International Journal of Earth Sciences : Volume 89, Issue 2, September 2000

International Journal of Earth Sciences : Volume 89, Issue 1, June 2000

International Journal of Earth Sciences : Volume 88

International Journal of Earth Sciences : Volume 87

International Journal of Earth Sciences : Volume 86

Sea-ice transport of riverine particles from the Laptev Sea to Fram Strait based on clay mineral studies

Content Provider	Springer Nature Link
Author	Dethleff, Dirk Rachold, Volker Tintelt, Matthias Antow, Martin
Copyright Year	2000
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.
Starting Page	496
Ending Page	502
Page Count	7
File Format	PDF
ISSN	14373254
Journal	International Journal of Earth Sciences
Volume Number	89
Issue Number	3
e-ISSN	14373262
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-07-19
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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Fram Strait sea-ice sediment provinces based on silt and clay compositions identify Siberian Kara and Laptev seas as main source regions

Variability of fluvial sediment supply to the Laptev Sea continental margin during Late Weichselian to Holocene times: implications from clay–mineral records

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Sea-ice transport of riverine particles from the Laptev Sea to Fram Strait based on clay mineral studies

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