Recent changes in sediment accumulation rates in Adventfjorden, Svalbard

Recent sediment accumulation rates in Adventfjorden (Svalbard), a small subpolar fjord, were determined by 210 Pb and 137 Cs dating. Modern rates in the central basin decrease downfjord from 1.87 to 0.87 cm y -1 (2.6 to 1.19 g cm -2 y -1 ). Comparison of the modern values (1986-2001) with older ones...

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Bibliographic Details
Main Authors: Ryszard Bojanowski, Witold Szczuciński, Marek Zajączkowski
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2004
Subjects:
137Cs
210Pb
Sediment accumulation rates
Fjord
Svalbard
Oceanography
GC1-1581
Adventfjorden
Central Basin
Isfjord*
Isfjorden
Online Access:https://doaj.org/article/6e10a00d55b348b0b2b109c63fc9d08a
Description
Summary:Recent sediment accumulation rates in Adventfjorden (Svalbard), a small subpolar fjord, were determined by 210 Pb and 137 Cs dating. Modern rates in the central basin decrease downfjord from 1.87 to 0.87 cm y -1 (2.6 to 1.19 g cm -2 y -1 ). Comparison of the modern values (1986-2001) with older ones (1963-86) reveals a marked increase in sediment accumulation rates in the last ten years. This correlates well with recent climate changes (warming and increase in precipitation). Comparison with particulate matter flux data indicates that a portion of the sediment is passed on to Isfjorden.

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