Mediterranean Outflow Water variability during the Early Pleistocene
Gaining insights into the evolution of Mediterranean Outflow Water (MOW) during the Early Pleistocene has been so far hampered by the lack of available palaeoclimatic archives. Here we present the first benthic foraminifera stable oxygen and carbon isotope records and grain-size data from IODP Exped...
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ftdoajarticles:oai:doaj.org/article:dedfa45fcb074569a946eb5e6db7b1d3 2023-05-15T17:29:53+02:00 Mediterranean Outflow Water variability during the Early Pleistocene S. Kaboth P. Grunert L. Lourens 2017-08-01T00:00:00Z https://doi.org/10.5194/cp-13-1023-2017 https://doaj.org/article/dedfa45fcb074569a946eb5e6db7b1d3 EN eng Copernicus Publications https://www.clim-past.net/13/1023/2017/cp-13-1023-2017.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-13-1023-2017 1814-9324 1814-9332 https://doaj.org/article/dedfa45fcb074569a946eb5e6db7b1d3 Climate of the Past, Vol 13, Pp 1023-1035 (2017) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2017 ftdoajarticles https://doi.org/10.5194/cp-13-1023-2017 2022-12-31T12:27:11Z Gaining insights into the evolution of Mediterranean Outflow Water (MOW) during the Early Pleistocene has been so far hampered by the lack of available palaeoclimatic archives. Here we present the first benthic foraminifera stable oxygen and carbon isotope records and grain-size data from IODP Expedition 339 Site U1389 presently located within the upper core of the MOW in the Gulf of Cadiz for the time interval between 2.6 and 1.8 Ma. A comparison with an intermediate water mass record from the Mediterranean Sea strongly suggest an active MOW supplying Site U1389 on glacial–interglacial timescales during the Early Pleistocene. We also find indication that the increasing presence of MOW in the Gulf of Cadiz during the investigated time interval aligns with the progressive northward protrusion of Mediterranean sourced intermediate water masses into the North Atlantic, possibly modulating the intensification of the North Atlantic Meridional Overturning Circulation at the same time. Additionally, our results suggest that MOW flow strength was already governed by precession and semi-precession cyclicity during the Early Pleistocene against the background of glacial–interglacial variability. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Climate of the Past 13 8 1023 1035 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 S. Kaboth P. Grunert L. Lourens Mediterranean Outflow Water variability during the Early Pleistocene |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
Gaining insights into the evolution of Mediterranean Outflow Water (MOW) during the Early Pleistocene has been so far hampered by the lack of available palaeoclimatic archives. Here we present the first benthic foraminifera stable oxygen and carbon isotope records and grain-size data from IODP Expedition 339 Site U1389 presently located within the upper core of the MOW in the Gulf of Cadiz for the time interval between 2.6 and 1.8 Ma. A comparison with an intermediate water mass record from the Mediterranean Sea strongly suggest an active MOW supplying Site U1389 on glacial–interglacial timescales during the Early Pleistocene. We also find indication that the increasing presence of MOW in the Gulf of Cadiz during the investigated time interval aligns with the progressive northward protrusion of Mediterranean sourced intermediate water masses into the North Atlantic, possibly modulating the intensification of the North Atlantic Meridional Overturning Circulation at the same time. Additionally, our results suggest that MOW flow strength was already governed by precession and semi-precession cyclicity during the Early Pleistocene against the background of glacial–interglacial variability. |
format |
Article in Journal/Newspaper |
author |
S. Kaboth P. Grunert L. Lourens |
author_facet |
S. Kaboth P. Grunert L. Lourens |
author_sort |
S. Kaboth |
title |
Mediterranean Outflow Water variability during the Early Pleistocene |
title_short |
Mediterranean Outflow Water variability during the Early Pleistocene |
title_full |
Mediterranean Outflow Water variability during the Early Pleistocene |
title_fullStr |
Mediterranean Outflow Water variability during the Early Pleistocene |
title_full_unstemmed |
Mediterranean Outflow Water variability during the Early Pleistocene |
title_sort |
mediterranean outflow water variability during the early pleistocene |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/cp-13-1023-2017 https://doaj.org/article/dedfa45fcb074569a946eb5e6db7b1d3 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Climate of the Past, Vol 13, Pp 1023-1035 (2017) |
op_relation |
https://www.clim-past.net/13/1023/2017/cp-13-1023-2017.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-13-1023-2017 1814-9324 1814-9332 https://doaj.org/article/dedfa45fcb074569a946eb5e6db7b1d3 |
op_doi |
https://doi.org/10.5194/cp-13-1023-2017 |
container_title |
Climate of the Past |
container_volume |
13 |
container_issue |
8 |
container_start_page |
1023 |
op_container_end_page |
1035 |
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1766125105631461376 |