Multi-proxy palaeo-data of sediment core GeoB10831-3 and hydrographic data from Nordaustlandet (Svalbard) including benthic foraminifera, IRD, stable isotopes and biomarkers ...
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 esti...
Main Authors: | , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
PANGAEA
2018
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Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.889160 https://doi.pangaea.de/10.1594/PANGAEA.889160 |
Summary: | 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 ... |
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