Radiocarbon ages measured in core PSh63-5159R from the southwest Barents Sea, supplement to: Chistyakova, Natalia O; Ivanova, Elena V; Risebrobakken, Bjørg; Ovsepyan, E A; Ovsepyan, Ya S (2010): Reconstruction of the postglacial environments in the southwestern Barents Sea based on foraminiferal assemblages. Translated from Okeanologiya, 2010, 50(4), 608-617, Oceanology, 50(4), 573-581


Environmental changes in the surface and bottom water layers of the Ingøydjupet Basin and history of Atlantic water inflow to the southwestern Barents Sea during the last 16 ka are reconstructed on the base of planktic and benthic foraminiferal assemblages. A multiproxy study of sediment cores PSh-5159R and PSh-5159N, including AMS 14C dating, provides time resolution of about 200 years for the deglaciation period, 100 years for Holocene, and 25-50 years for the last 400 years. Stable polar conditions with sea ice on the surface were typical for the early deglaciation period. Unstable bottom settings and onset of ice rafting marked Oldest Dryas. Cold Atlantic water inflow increased notably during the Boiling-Allerod interstadial nearby the site location and then decreased during the Younger Dryas. Early Holocene was characterized by abrupt warming in the bottom and surface water layers, especially ~9.7-7.6 ka BP. Stable conditions prevailed during Middle Holocene. Remarkable changes in the sea-surface temperature and bottom environments occurred during last 2.5 cal. ka BP.

Metadata Access
Creator Ovsepyan, Ya S;Ivanova, Elena V;Ovsepyan, E A;Chistyakova, Natalia O;Risebrobakken, Bjørg
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2010
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Discipline Earth System Research
Spatial Coverage (71N,23E)