Late Pleistocene proxy records of sediment core GeoB3388-1 from the eastern subtropical Pacific
Paleoceanographic evidence from midlatitudes bearing on the long-term development of Pacific Ocean surface circulation through the middle and late Pleistocene is scant because of a lack of marine paleorecords exceeding the last four or five glacial cycles. Here we compare benthic and planktonic fora...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.686213 2023-05-15T17:14:59+02:00 Late Pleistocene proxy records of sediment core GeoB3388-1 from the eastern subtropical Pacific Mohtadi, Mahyar Hebbeln, Dierk Nunez-Ricardo, Samuel Lange, Carina Beatriz LATITUDE: -25.220000 * LONGITUDE: -75.525000 * DATE/TIME START: 1995-06-12T00:00:00 * DATE/TIME END: 1995-06-12T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.03 m * MAXIMUM DEPTH, sediment/rock: 7.08 m 2006-05-21 text/tab-separated-values, 412 data points https://doi.pangaea.de/10.1594/PANGAEA.686213 https://doi.org/10.1594/PANGAEA.686213 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.686213 https://doi.org/10.1594/PANGAEA.686213 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Mohtadi, Mahyar; Hebbeln, Dierk; Nunez-Ricardo, Samuel; Lange, Carina Beatriz (2006): El Niño-like pattern in the Pacific during Marine Isotope Stages (MIS) 13 and 11? Paleoceanography, 21, PA1015, https://doi.org/10.1029/2005PA001190 Center for Marine Environmental Sciences CHIPAL Cibicidoides wuellerstorfi δ13C δ18O DEPTH sediment/rock GeoB3388-1 Gravity corer (Kiel type) Iquique-Ridge MARUM Mass spectrometer Finnigan MAT 251 Neogloboquadrina pachyderma dextral SL SO102/2 Sonne Dataset 2006 ftpangaea https://doi.org/10.1594/PANGAEA.686213 https://doi.org/10.1029/2005PA001190 2023-01-20T08:45:02Z Paleoceanographic evidence from midlatitudes bearing on the long-term development of Pacific Ocean surface circulation through the middle and late Pleistocene is scant because of a lack of marine paleorecords exceeding the last four or five glacial cycles. Here we compare benthic and planktonic foraminiferal stable carbon isotope data from a 1-Myr marine record in the southeastern subtropical Pacific with records from the equatorial Pacific and Southern Ocean in order to reconstruct sea surface circulation in this part of the world ocean and its possible link to the El Niño/Southern Oscillation (ENSO). We especially address marine isotope stages (MIS) 13 and 11, when internal climate dynamics are suggested to produce somewhat unusual interglacial periods. Our results show that the Southern Ocean controlled the circulation in the subtropical Pacific throughout the middle and late Pleistocene and that the hitherto existing hypotheses cannot explain the peak d13C values in both MIS 13 and 11. We argue that the surface circulation pattern in the southeast Pacific during MIS 13 and 11 should have differed from any other interglacial, and we suggest that the subsequent changes in the latitudinal and meridional heat and moisture transfer contributed to the unusual paleoceanographic settings during these stages. We further hypothesize unusually strong El Niño–like conditions during MIS 13 and 11. This hypothesis, if true, challenges a direct forcing of ENSO by orbital parameters. Dataset Neogloboquadrina pachyderma Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Southern Ocean Pacific Iquique ENVELOPE(-60.667,-60.667,-62.967,-62.967) ENVELOPE(-75.525000,-75.525000,-25.220000,-25.220000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Center for Marine Environmental Sciences CHIPAL Cibicidoides wuellerstorfi δ13C δ18O DEPTH sediment/rock GeoB3388-1 Gravity corer (Kiel type) Iquique-Ridge MARUM Mass spectrometer Finnigan MAT 251 Neogloboquadrina pachyderma dextral SL SO102/2 Sonne |
spellingShingle |
Center for Marine Environmental Sciences CHIPAL Cibicidoides wuellerstorfi δ13C δ18O DEPTH sediment/rock GeoB3388-1 Gravity corer (Kiel type) Iquique-Ridge MARUM Mass spectrometer Finnigan MAT 251 Neogloboquadrina pachyderma dextral SL SO102/2 Sonne Mohtadi, Mahyar Hebbeln, Dierk Nunez-Ricardo, Samuel Lange, Carina Beatriz Late Pleistocene proxy records of sediment core GeoB3388-1 from the eastern subtropical Pacific |
topic_facet |
Center for Marine Environmental Sciences CHIPAL Cibicidoides wuellerstorfi δ13C δ18O DEPTH sediment/rock GeoB3388-1 Gravity corer (Kiel type) Iquique-Ridge MARUM Mass spectrometer Finnigan MAT 251 Neogloboquadrina pachyderma dextral SL SO102/2 Sonne |
description |
Paleoceanographic evidence from midlatitudes bearing on the long-term development of Pacific Ocean surface circulation through the middle and late Pleistocene is scant because of a lack of marine paleorecords exceeding the last four or five glacial cycles. Here we compare benthic and planktonic foraminiferal stable carbon isotope data from a 1-Myr marine record in the southeastern subtropical Pacific with records from the equatorial Pacific and Southern Ocean in order to reconstruct sea surface circulation in this part of the world ocean and its possible link to the El Niño/Southern Oscillation (ENSO). We especially address marine isotope stages (MIS) 13 and 11, when internal climate dynamics are suggested to produce somewhat unusual interglacial periods. Our results show that the Southern Ocean controlled the circulation in the subtropical Pacific throughout the middle and late Pleistocene and that the hitherto existing hypotheses cannot explain the peak d13C values in both MIS 13 and 11. We argue that the surface circulation pattern in the southeast Pacific during MIS 13 and 11 should have differed from any other interglacial, and we suggest that the subsequent changes in the latitudinal and meridional heat and moisture transfer contributed to the unusual paleoceanographic settings during these stages. We further hypothesize unusually strong El Niño–like conditions during MIS 13 and 11. This hypothesis, if true, challenges a direct forcing of ENSO by orbital parameters. |
format |
Dataset |
author |
Mohtadi, Mahyar Hebbeln, Dierk Nunez-Ricardo, Samuel Lange, Carina Beatriz |
author_facet |
Mohtadi, Mahyar Hebbeln, Dierk Nunez-Ricardo, Samuel Lange, Carina Beatriz |
author_sort |
Mohtadi, Mahyar |
title |
Late Pleistocene proxy records of sediment core GeoB3388-1 from the eastern subtropical Pacific |
title_short |
Late Pleistocene proxy records of sediment core GeoB3388-1 from the eastern subtropical Pacific |
title_full |
Late Pleistocene proxy records of sediment core GeoB3388-1 from the eastern subtropical Pacific |
title_fullStr |
Late Pleistocene proxy records of sediment core GeoB3388-1 from the eastern subtropical Pacific |
title_full_unstemmed |
Late Pleistocene proxy records of sediment core GeoB3388-1 from the eastern subtropical Pacific |
title_sort |
late pleistocene proxy records of sediment core geob3388-1 from the eastern subtropical pacific |
publisher |
PANGAEA |
publishDate |
2006 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.686213 https://doi.org/10.1594/PANGAEA.686213 |
op_coverage |
LATITUDE: -25.220000 * LONGITUDE: -75.525000 * DATE/TIME START: 1995-06-12T00:00:00 * DATE/TIME END: 1995-06-12T00:00:00 * MINIMUM DEPTH, sediment/rock: 0.03 m * MAXIMUM DEPTH, sediment/rock: 7.08 m |
long_lat |
ENVELOPE(-60.667,-60.667,-62.967,-62.967) ENVELOPE(-75.525000,-75.525000,-25.220000,-25.220000) |
geographic |
Southern Ocean Pacific Iquique |
geographic_facet |
Southern Ocean Pacific Iquique |
genre |
Neogloboquadrina pachyderma Southern Ocean |
genre_facet |
Neogloboquadrina pachyderma Southern Ocean |
op_source |
Supplement to: Mohtadi, Mahyar; Hebbeln, Dierk; Nunez-Ricardo, Samuel; Lange, Carina Beatriz (2006): El Niño-like pattern in the Pacific during Marine Isotope Stages (MIS) 13 and 11? Paleoceanography, 21, PA1015, https://doi.org/10.1029/2005PA001190 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.686213 https://doi.org/10.1594/PANGAEA.686213 |
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.686213 https://doi.org/10.1029/2005PA001190 |
_version_ |
1766073107749011456 |