Sedimentology on core MSM05/05_723-2
Two high-resolution sediment cores from eastern Fram Strait have been investigated for sea subsurface and surface temperature variability during the Holocene (the past ca 12,000 years). The transfer function developed by Husum and Hald (2012) has been applied to sediment cores in order to reconstruc...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.849325 https://doi.org/10.1594/PANGAEA.849325 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.849325 2023-05-15T16:18:05+02:00 Sedimentology on core MSM05/05_723-2 Werner, Kirstin Müller, Juliane Husum, Katrine Spielhagen, Robert F Kandiano, Evgenia S Polyak, Leonid MEDIAN LATITUDE: 79.125953 * MEDIAN LONGITUDE: 5.542024 * SOUTH-BOUND LATITUDE: 78.915662 * WEST-BOUND LONGITUDE: 5.337833 * NORTH-BOUND LATITUDE: 79.161001 * EAST-BOUND LONGITUDE: 6.767167 * DATE/TIME START: 2007-08-04T10:00:00 * DATE/TIME END: 2007-08-07T12:00:00 2015-09-12 application/zip, 7 datasets https://doi.pangaea.de/10.1594/PANGAEA.849325 https://doi.org/10.1594/PANGAEA.849325 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.849325 https://doi.org/10.1594/PANGAEA.849325 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Werner, Kirstin; Müller, Juliane; Husum, Katrine; Spielhagen, Robert F; Kandiano, Evgenia S; Polyak, Leonid (2015): Holocene sea subsurface and surface water masses in the Fram Strait - comparisons of temperature and sea-ice reconstructions. PAST Gateways Special Issue (JQSR_4428), Quaternary Science Reviews, https://doi.org/10.1016/j.quascirev.2015.09.007 AWI_Paleo Fram Strait GEOMAR Helmholtz Centre for Ocean Research Kiel KAL Kasten corer Maria S. Merian MSM05/5 MSM05/5_723-2 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.849325 https://doi.org/10.1016/j.quascirev.2015.09.007 2023-01-20T07:33:31Z Two high-resolution sediment cores from eastern Fram Strait have been investigated for sea subsurface and surface temperature variability during the Holocene (the past ca 12,000 years). The transfer function developed by Husum and Hald (2012) has been applied to sediment cores in order to reconstruct fluctuations of sea subsurface temperatures throughout the period. Additional biomarker and foraminiferal proxy data are used to elucidate variability between surface and subsurface water mass conditions, and to conclude on the Holocene climate and oceanographic variability on the West Spitsbergen continental margin. Results consistently reveal warm sea surface to subsurface temperatures of up to 6 °C until ca 5 cal ka BP, with maximum seawater temperatures around 10 cal ka BP, likely related to maximum July insolation occurring at that time. Maximum Atlantic Water (AW) advection occurred at surface and subsurface between 10.6 and 8.5 cal ka BP based on both foraminiferal and dinocyst temperature reconstructions. Probably, a less-stratified, ice-free, nutrient-rich surface ocean with strong AW advection prevailed in the eastern Fram Strait between 10 and 9 cal ka BP. Weakened AW contribution is found after ca 5 cal ka BP when subsurface temperatures strongly decrease with minimum values between ca 4 and 3 cal ka BP. Cold late Holocene conditions are furthermore supported by high planktic foraminifer shell fragmentation and high d18O values of the subpolar planktic foraminifer species Turborotalita quinqueloba. While IP25-associated indices as well as dinocyst data suggest a sustained cooling due to a decrease in early summer insolation and consequently sea-ice increase since about 7 cal ka BP in surface waters, planktic foraminiferal data including stable isotopes indicate a slight return of stronger subsurface AW influx since ca 3 cal ka BP. The observed decoupling of surface and subsurface waters during the later Holocene is most likely attributed to a strong pycnocline layer separating cold sea-ice fed surface ... Dataset Fram Strait Sea ice Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(5.337833,6.767167,79.161001,78.915662) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_Paleo Fram Strait GEOMAR Helmholtz Centre for Ocean Research Kiel KAL Kasten corer Maria S. Merian MSM05/5 MSM05/5_723-2 Paleoenvironmental Reconstructions from Marine Sediments @ AWI |
spellingShingle |
AWI_Paleo Fram Strait GEOMAR Helmholtz Centre for Ocean Research Kiel KAL Kasten corer Maria S. Merian MSM05/5 MSM05/5_723-2 Paleoenvironmental Reconstructions from Marine Sediments @ AWI Werner, Kirstin Müller, Juliane Husum, Katrine Spielhagen, Robert F Kandiano, Evgenia S Polyak, Leonid Sedimentology on core MSM05/05_723-2 |
topic_facet |
AWI_Paleo Fram Strait GEOMAR Helmholtz Centre for Ocean Research Kiel KAL Kasten corer Maria S. Merian MSM05/5 MSM05/5_723-2 Paleoenvironmental Reconstructions from Marine Sediments @ AWI |
description |
Two high-resolution sediment cores from eastern Fram Strait have been investigated for sea subsurface and surface temperature variability during the Holocene (the past ca 12,000 years). The transfer function developed by Husum and Hald (2012) has been applied to sediment cores in order to reconstruct fluctuations of sea subsurface temperatures throughout the period. Additional biomarker and foraminiferal proxy data are used to elucidate variability between surface and subsurface water mass conditions, and to conclude on the Holocene climate and oceanographic variability on the West Spitsbergen continental margin. Results consistently reveal warm sea surface to subsurface temperatures of up to 6 °C until ca 5 cal ka BP, with maximum seawater temperatures around 10 cal ka BP, likely related to maximum July insolation occurring at that time. Maximum Atlantic Water (AW) advection occurred at surface and subsurface between 10.6 and 8.5 cal ka BP based on both foraminiferal and dinocyst temperature reconstructions. Probably, a less-stratified, ice-free, nutrient-rich surface ocean with strong AW advection prevailed in the eastern Fram Strait between 10 and 9 cal ka BP. Weakened AW contribution is found after ca 5 cal ka BP when subsurface temperatures strongly decrease with minimum values between ca 4 and 3 cal ka BP. Cold late Holocene conditions are furthermore supported by high planktic foraminifer shell fragmentation and high d18O values of the subpolar planktic foraminifer species Turborotalita quinqueloba. While IP25-associated indices as well as dinocyst data suggest a sustained cooling due to a decrease in early summer insolation and consequently sea-ice increase since about 7 cal ka BP in surface waters, planktic foraminiferal data including stable isotopes indicate a slight return of stronger subsurface AW influx since ca 3 cal ka BP. The observed decoupling of surface and subsurface waters during the later Holocene is most likely attributed to a strong pycnocline layer separating cold sea-ice fed surface ... |
format |
Dataset |
author |
Werner, Kirstin Müller, Juliane Husum, Katrine Spielhagen, Robert F Kandiano, Evgenia S Polyak, Leonid |
author_facet |
Werner, Kirstin Müller, Juliane Husum, Katrine Spielhagen, Robert F Kandiano, Evgenia S Polyak, Leonid |
author_sort |
Werner, Kirstin |
title |
Sedimentology on core MSM05/05_723-2 |
title_short |
Sedimentology on core MSM05/05_723-2 |
title_full |
Sedimentology on core MSM05/05_723-2 |
title_fullStr |
Sedimentology on core MSM05/05_723-2 |
title_full_unstemmed |
Sedimentology on core MSM05/05_723-2 |
title_sort |
sedimentology on core msm05/05_723-2 |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.849325 https://doi.org/10.1594/PANGAEA.849325 |
op_coverage |
MEDIAN LATITUDE: 79.125953 * MEDIAN LONGITUDE: 5.542024 * SOUTH-BOUND LATITUDE: 78.915662 * WEST-BOUND LONGITUDE: 5.337833 * NORTH-BOUND LATITUDE: 79.161001 * EAST-BOUND LONGITUDE: 6.767167 * DATE/TIME START: 2007-08-04T10:00:00 * DATE/TIME END: 2007-08-07T12:00:00 |
long_lat |
ENVELOPE(5.337833,6.767167,79.161001,78.915662) |
genre |
Fram Strait Sea ice Spitsbergen |
genre_facet |
Fram Strait Sea ice Spitsbergen |
op_source |
Supplement to: Werner, Kirstin; Müller, Juliane; Husum, Katrine; Spielhagen, Robert F; Kandiano, Evgenia S; Polyak, Leonid (2015): Holocene sea subsurface and surface water masses in the Fram Strait - comparisons of temperature and sea-ice reconstructions. PAST Gateways Special Issue (JQSR_4428), Quaternary Science Reviews, https://doi.org/10.1016/j.quascirev.2015.09.007 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.849325 https://doi.org/10.1594/PANGAEA.849325 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.849325 https://doi.org/10.1016/j.quascirev.2015.09.007 |
_version_ |
1766004192619528192 |