Multi-proxy palaeo-data of sediment core GeoB10831-3 and hydrographic data from Nordaustlandet (Svalbard) including benthic foraminifera, IRD, stable isotopes and biomarkers ...

• Main Authors: Bartels, Martin, Titschack, Jürgen, Fahl, Kirsten, Stein, Ruediger, Hebbeln, Dierk
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2018
• Subjects: Center for Marine Environmental Sciences MARUM; Foraminifera*; glacier; Nordaustlandet; Sea ice; Svalbard
• Online Access: https://dx.doi.org/10.1594/pangaea.889160; https://doi.pangaea.de/10.1594/PANGAEA.889160

Exceptionally high sedimentation rates in Arctic fjords provide the possibility to reconstruct environmental conditions in high temporal resolution during the (pre-)Holocene. The unique geographical location of Svalbard at the intersection of Arctic and Atlantic waters offers the opportunity to estimate local (mainly glacier-related) vs. regional (hydrographic) variabilities. Sedimentological, micropalaeontological and geochemical data from the very remote, glacier-surrounded Wahlenbergfjord in eastern Svalbard provides information on glacier dynamics, palaeoceanographic and sea ice conditions during the Holocene. The present study illustrates a high meltwater discharge during the summer insolation maximum (~11.3-7.7 ka) when the intrusion of upwelled relatively warm Atlantic-derived waters led to an almost open fjord situation with reduced sea ice in summer. Around 7.7 ka, a rapid hydrographic shift occurred: The dominance of inflowing Atlantic-derived waters was replaced by a stronger influence of Arctic ... : Supplement to: Bartels, Martin; Titschack, Jürgen; Fahl, Kirsten; Stein, Ruediger; Hebbeln, Dierk (2018): Wahlenbergfjord, eastern Svalbard: a glacier-surrounded fjord reflecting regional hydrographic variability during the Holocene? Boreas, 47(4), 1003-1021 ...