Late Glacial/early Holocene benthic foraminifera assemblages, stable isotopes, IRD, magnetic susceptibility, Mn/Fe ratio and vivianite count from Storfjordrenna, western Barents Sea ...

• Main Authors: Łącka, Magdalena, Michalska, Danuta, Pawłowska, Joanna, Szymańska, Natalia, Szczuciński, Witold, Forwick, Matthias, Zajączkowski, Marek
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2020
• Subjects: Arctic; Barents Sea; Benthic foraminifera; Holocene; Stable isotopes; Storfjorden Trough; Svalbard; vivianite; XRF; Younger Dryas; Gravity corer; JM09702; Jan Mayen; Climate change; Foraminifera*; Magnetic susceptibility; Storfjorden; Storfjordrenna; Arctic University of Norway; University of Tromsø
• Online Access: https://dx.doi.org/10.1594/pangaea.917645; https://doi.pangaea.de/10.1594/PANGAEA.917645

Lateglacial/early Holocene interval from the sediment core JM09-020GC recovered in Storfjordrenna (western Barents Sea) has been studied for benthic foraminifera assemblages, stable isotopes, IRD, vivianite microconcretions, magnetic susceptibility, and elemental composition in order to identify the causes and mechanisms of abrupt climate change during the Younger Dryas.The core was retrieved with R/V Jan Mayen (University of Tromsø – The Arctic University of Norway, UiT) in November 2009 from the Storfjordrenna (76°31489' N, 19°69957' E) at a bottom depth of 253 m. Prior to sediment core opening, the magnetic susceptibility was measured using a loop sensor installed on a GEOTEK Multi Sensor Core Logger at the Department of Geology, UiT. Core sections were stored in the laboratory for one day prior to measurements, thus allowing the sediments to adjust to room temperature and avoiding measurement errors related to temperature changes (Weber et al., 1997). Qualitative element-geochemical measurements were ...