Paleo-climate reconstruction on sediment core M72/5_628-1 (25-GC-1), Black Sea
The Marine Isotope Stage (MIS) 3 stands out due to its abrupt changes from cold and dry stadials to warm and humid interstadials, the so-called Dansgaard-Oeschger cycles that also affected temperature and rainfall in the Black Sea region. This study is based on a gravity core from the southeastern (...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.871241 2024-09-15T18:06:07+00:00 Paleo-climate reconstruction on sediment core M72/5_628-1 (25-GC-1), Black Sea Wegwerth, Antje Kaiser, Jérôme Dellwig, Olaf Shumilovskikh, Lyudmila S Nowaczyk, Norbert R Arz, Helge Wolfgang LATITUDE: 42.103500 * LONGITUDE: 36.623830 * DATE/TIME START: 2007-05-29T17:12:00 * DATE/TIME END: 2007-05-29T17:12:00 2016 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.871241 https://doi.org/10.1594/PANGAEA.871241 en eng PANGAEA Nowaczyk, Norbert R; Arz, Helge Wolfgang; Frank, Ute; Kind, J; Plessen, Birgit (2012): Dynamics of the Laschamp geomagnetic excursion from Black Sea sediments. Earth and Planetary Science Letters, 351-352, 54-69, https://doi.org/10.1016/j.epsl.2012.06.050 Shumilovskikh, Lyudmila S; Fleitmann, Dominik; Nowaczyk, Norbert R; Behling, Hermann; Marret, Fabienne; Wegwerth, Antje; Arz, Helge Wolfgang (2014): Orbital- and millennial-scale environmental changes between 64 and 20 ka BP recorded in Black Sea sediments. Climate of the Past, 10(3), 939-954, https://doi.org/10.5194/cp-10-939-2014 Wegwerth, Antje; Ganopolski, Andrey; Ménot, Guillemette; Kaiser, Jérôme; Dellwig, Olaf; Bard, Edouard; Lamy, Frank; Arz, Helge Wolfgang (2015): Black Sea temperature response to glacial millennial-scale climate variability. Geophysical Research Letters, 42, 8 pp, https://doi.org/10.1002/2015GL065499 https://doi.pangaea.de/10.1594/PANGAEA.871241 https://doi.org/10.1594/PANGAEA.871241 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Wegwerth, Antje; Kaiser, Jérôme; Dellwig, Olaf; Shumilovskikh, Lyudmila S; Nowaczyk, Norbert R; Arz, Helge Wolfgang (2016): Northern hemisphere climate control on the environmental dynamics in the glacial Black Sea “Lake”. Quaternary Science Reviews, 135, 41-53, https://doi.org/10.1016/j.quascirev.2016.01.016 25-GC1 Baltic Sea Research Institute Warnemünde Black Sea GC Gravity corer IOW M72/5 M72/5_628-1 Meteor (1986) dataset publication series 2016 ftpangaea https://doi.org/10.1594/PANGAEA.87124110.1016/j.quascirev.2016.01.01610.1016/j.epsl.2012.06.05010.5194/cp-10-939-201410.1002/2015GL065499 2024-07-24T02:31:21Z The Marine Isotope Stage (MIS) 3 stands out due to its abrupt changes from cold and dry stadials to warm and humid interstadials, the so-called Dansgaard-Oeschger cycles that also affected temperature and rainfall in the Black Sea region. This study is based on a gravity core from the southeastern (SE) Black Sea that covers the last glacial lake stage from 64 to 20 ka BP. By using the composition of major and trace elements in the sediments, terrestrial plant-derived n-alkane flux, and Sr/Ca from benthic ostracods, we reconstruct the variability of riverine and aeolian input, salinity, and productivity in the SE Black Sea region in response to the Northern Hemisphere climate oscillations. During colder and drier stadials, the aeolian input increased relative to the riverine discharge, potentially due to southward shifted and/or stronger westerly winds and due to changes in the vegetation cover. An evaporation exceeding freshwater supply by rainfall and rivers possibly caused higher salinity and a lower lake level. The environmental status during MIS 4 and 2 is very much comparable with the stadial conditions during MIS 3. During warmer and more humid interstadials, lower salinity and presumably positive lake level changes most likely resulted from increased precipitation and river discharge. This likely increased primary productivity through an augmented nutrient supply. Lowest average salinities are suggested for the middle part of MIS 3 in response to enhanced meltwater from the disintegrating Fennoscandian Ice Sheet and/or by generally more humid conditions. Other/Unknown Material Fennoscandian Ice Sheet PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(36.623830,36.623830,42.103500,42.103500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
25-GC1 Baltic Sea Research Institute Warnemünde Black Sea GC Gravity corer IOW M72/5 M72/5_628-1 Meteor (1986) |
spellingShingle |
25-GC1 Baltic Sea Research Institute Warnemünde Black Sea GC Gravity corer IOW M72/5 M72/5_628-1 Meteor (1986) Wegwerth, Antje Kaiser, Jérôme Dellwig, Olaf Shumilovskikh, Lyudmila S Nowaczyk, Norbert R Arz, Helge Wolfgang Paleo-climate reconstruction on sediment core M72/5_628-1 (25-GC-1), Black Sea |
topic_facet |
25-GC1 Baltic Sea Research Institute Warnemünde Black Sea GC Gravity corer IOW M72/5 M72/5_628-1 Meteor (1986) |
description |
The Marine Isotope Stage (MIS) 3 stands out due to its abrupt changes from cold and dry stadials to warm and humid interstadials, the so-called Dansgaard-Oeschger cycles that also affected temperature and rainfall in the Black Sea region. This study is based on a gravity core from the southeastern (SE) Black Sea that covers the last glacial lake stage from 64 to 20 ka BP. By using the composition of major and trace elements in the sediments, terrestrial plant-derived n-alkane flux, and Sr/Ca from benthic ostracods, we reconstruct the variability of riverine and aeolian input, salinity, and productivity in the SE Black Sea region in response to the Northern Hemisphere climate oscillations. During colder and drier stadials, the aeolian input increased relative to the riverine discharge, potentially due to southward shifted and/or stronger westerly winds and due to changes in the vegetation cover. An evaporation exceeding freshwater supply by rainfall and rivers possibly caused higher salinity and a lower lake level. The environmental status during MIS 4 and 2 is very much comparable with the stadial conditions during MIS 3. During warmer and more humid interstadials, lower salinity and presumably positive lake level changes most likely resulted from increased precipitation and river discharge. This likely increased primary productivity through an augmented nutrient supply. Lowest average salinities are suggested for the middle part of MIS 3 in response to enhanced meltwater from the disintegrating Fennoscandian Ice Sheet and/or by generally more humid conditions. |
format |
Other/Unknown Material |
author |
Wegwerth, Antje Kaiser, Jérôme Dellwig, Olaf Shumilovskikh, Lyudmila S Nowaczyk, Norbert R Arz, Helge Wolfgang |
author_facet |
Wegwerth, Antje Kaiser, Jérôme Dellwig, Olaf Shumilovskikh, Lyudmila S Nowaczyk, Norbert R Arz, Helge Wolfgang |
author_sort |
Wegwerth, Antje |
title |
Paleo-climate reconstruction on sediment core M72/5_628-1 (25-GC-1), Black Sea |
title_short |
Paleo-climate reconstruction on sediment core M72/5_628-1 (25-GC-1), Black Sea |
title_full |
Paleo-climate reconstruction on sediment core M72/5_628-1 (25-GC-1), Black Sea |
title_fullStr |
Paleo-climate reconstruction on sediment core M72/5_628-1 (25-GC-1), Black Sea |
title_full_unstemmed |
Paleo-climate reconstruction on sediment core M72/5_628-1 (25-GC-1), Black Sea |
title_sort |
paleo-climate reconstruction on sediment core m72/5_628-1 (25-gc-1), black sea |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.871241 https://doi.org/10.1594/PANGAEA.871241 |
op_coverage |
LATITUDE: 42.103500 * LONGITUDE: 36.623830 * DATE/TIME START: 2007-05-29T17:12:00 * DATE/TIME END: 2007-05-29T17:12:00 |
long_lat |
ENVELOPE(36.623830,36.623830,42.103500,42.103500) |
genre |
Fennoscandian Ice Sheet |
genre_facet |
Fennoscandian Ice Sheet |
op_source |
Supplement to: Wegwerth, Antje; Kaiser, Jérôme; Dellwig, Olaf; Shumilovskikh, Lyudmila S; Nowaczyk, Norbert R; Arz, Helge Wolfgang (2016): Northern hemisphere climate control on the environmental dynamics in the glacial Black Sea “Lake”. Quaternary Science Reviews, 135, 41-53, https://doi.org/10.1016/j.quascirev.2016.01.016 |
op_relation |
Nowaczyk, Norbert R; Arz, Helge Wolfgang; Frank, Ute; Kind, J; Plessen, Birgit (2012): Dynamics of the Laschamp geomagnetic excursion from Black Sea sediments. Earth and Planetary Science Letters, 351-352, 54-69, https://doi.org/10.1016/j.epsl.2012.06.050 Shumilovskikh, Lyudmila S; Fleitmann, Dominik; Nowaczyk, Norbert R; Behling, Hermann; Marret, Fabienne; Wegwerth, Antje; Arz, Helge Wolfgang (2014): Orbital- and millennial-scale environmental changes between 64 and 20 ka BP recorded in Black Sea sediments. Climate of the Past, 10(3), 939-954, https://doi.org/10.5194/cp-10-939-2014 Wegwerth, Antje; Ganopolski, Andrey; Ménot, Guillemette; Kaiser, Jérôme; Dellwig, Olaf; Bard, Edouard; Lamy, Frank; Arz, Helge Wolfgang (2015): Black Sea temperature response to glacial millennial-scale climate variability. Geophysical Research Letters, 42, 8 pp, https://doi.org/10.1002/2015GL065499 https://doi.pangaea.de/10.1594/PANGAEA.871241 https://doi.org/10.1594/PANGAEA.871241 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.87124110.1016/j.quascirev.2016.01.01610.1016/j.epsl.2012.06.05010.5194/cp-10-939-201410.1002/2015GL065499 |
_version_ |
1810443624009170944 |