(Table 1) Age determination of ODP Site 202-1233
Antarctic and Greenland ice-core records reveal large fluctuations of dust input on both orbital and millennial time-scales with potential global climate implications. At least during glacial periods, the Antarctic dust fluctuations appear to be largely controlled by environmental changes in souther...
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PANGAEA
2010
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.816371 https://doi.org/10.1594/PANGAEA.816371 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.816371 |
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openpolar |
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Open Polar |
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PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
202-1233 Age 14C AMS 14C calibrated comment dated dated standard deviation Calendar age standard deviation COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg202 Method comment Ocean Drilling Program ODP Reference/source South-East Pacific |
spellingShingle |
202-1233 Age 14C AMS 14C calibrated comment dated dated standard deviation Calendar age standard deviation COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg202 Method comment Ocean Drilling Program ODP Reference/source South-East Pacific Kaiser, Jérôme Lamy, Frank (Table 1) Age determination of ODP Site 202-1233 |
topic_facet |
202-1233 Age 14C AMS 14C calibrated comment dated dated standard deviation Calendar age standard deviation COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg202 Method comment Ocean Drilling Program ODP Reference/source South-East Pacific |
description |
Antarctic and Greenland ice-core records reveal large fluctuations of dust input on both orbital and millennial time-scales with potential global climate implications. At least during glacial periods, the Antarctic dust fluctuations appear to be largely controlled by environmental changes in southern South America. We compare dust flux records from two Antarctic ice-cores to variations in the composition of the terrigenous supply at ODP Site 1233 located off southern Chile and known to record fluctuations in the extent of the northern part of the Patagonian ice-sheet (NPIS) during the last glacial period (Marine Isotope Stage, MIS, 4 to 2). Within age uncertainties, millennial-scale glacial advances (retreats) of the NPIS correlate to Antarctic dust maxima (minima). In turn, NPIS fluctuations were closely related to offshore sea surface temperature (SST) changes. This pattern suggests a causal link involving changes in temperature, in rock flour availability, in latitudinal extensions of the westerly winds and in foehn winds in the southern Pampas and Patagonia. We further suggest that the long-term trend of dust accumulation is partly linked to the sea-level related changes in the size if the Patagonian source area due to the particular morphology of the Argentine shelf. We suggest that sea-level drops at the beginning of MIS 4 and MIS 2 were important for long-term dust increases, while changes in the Patagonian dust source regions primarily control the early dust decrease during the MIS 4/3 transition and Termination 1. |
format |
Dataset |
author |
Kaiser, Jérôme Lamy, Frank |
author_facet |
Kaiser, Jérôme Lamy, Frank |
author_sort |
Kaiser, Jérôme |
title |
(Table 1) Age determination of ODP Site 202-1233 |
title_short |
(Table 1) Age determination of ODP Site 202-1233 |
title_full |
(Table 1) Age determination of ODP Site 202-1233 |
title_fullStr |
(Table 1) Age determination of ODP Site 202-1233 |
title_full_unstemmed |
(Table 1) Age determination of ODP Site 202-1233 |
title_sort |
(table 1) age determination of odp site 202-1233 |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.816371 https://doi.org/10.1594/PANGAEA.816371 |
op_coverage |
LATITUDE: -41.000080 * LONGITUDE: -74.449860 * DATE/TIME START: 2002-04-12T00:00:00 * DATE/TIME END: 2002-04-12T00:00:00 * MINIMUM DEPTH, sediment/rock: 25.10 m * MAXIMUM DEPTH, sediment/rock: 133.75 m |
long_lat |
ENVELOPE(-74.449860,-74.449860,-41.000080,-41.000080) |
genre |
Antarc* Antarctic Greenland Greenland ice core ice core Ice Sheet |
genre_facet |
Antarc* Antarctic Greenland Greenland ice core ice core Ice Sheet |
op_source |
Supplement to: Kaiser, Jérôme; Lamy, Frank (2010): Links between Patagonian Ice Sheet fluctuations and Anarctic dust variability during the last glacial period (MIS 4-2). Quaternary Science Reviews, 29(11-12), 1464-1471, https://doi.org/10.1016/j.quascirev.2010.03.005 |
op_relation |
Blunier, Thomas; Brook, Edward J (2001): Timing of millennial-scale climate change in Antarctica and Greenland during the last glacial period. Science, 291(5501), 109-112, https://doi.org/10.1126/science.291.5501.109 Fairbanks, Richard G; Mortlock, Richard A; Chiu, Tzu-Chien; Cao, L; Kaplan, Alexey; Guilderson, Thomas P; Fairbanks, Todd W; Bloom, Arthur L; Grootes, Pieter Meiert; Nadeau, Marie-Josée (2005): Radiocarbon calibration curve spanning 0 to 50,000 years BP based on paired 230Th/234U/238U and 14C dates on pristine corals. Quaternary Science Reviews, 24(16-17), 1781-1796, https://doi.org/10.1016/j.quascirev.2005.04.007 Kaiser, Jérôme; Lamy, Frank; Hebbeln, Dierk (2005): A 70-kyr sea surface temperature record off southern Chile (Ocean Drilling Programm Site 1233). Paleoceanography, 20(4), PA4009, https://doi.org/10.1029/2005PA001146 Lamy, Frank; Kaiser, Jérôme; Arz, Helge Wolfgang; Hebbeln, Dierk; Ninnemann, Ulysses S; Timm, Oliver; Timmermann, Axel; Toggweiler, J Robbie (2007): Modulation of the bipolar seesaw in the Southeast Pacific during Termination 1. Earth and Planetary Science Letters, 259(3-4), 400-413, https://doi.org/10.1016/j.epsl.2007.04.040 Lamy, Frank; Kaiser, Jérôme; Ninnemann, Ulysses S; Hebbeln, Dierk; Arz, Helge Wolfgang; Stoner, Joseph S (2004): Antarctic timing of surface water changes off Chile and Patagonian ice-sheet response. Science, 304(5679), 1959-1962, https://doi.org/10.1126/science.1097863 https://doi.pangaea.de/10.1594/PANGAEA.816371 https://doi.org/10.1594/PANGAEA.816371 |
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.81637110.1016/j.quascirev.2010.03.00510.1126/science.291.5501.10910.1016/j.quascirev.2005.04.00710.1029/2005PA00114610.1016/j.epsl.2007.04.04010.1126/science.1097863 |
_version_ |
1810289010713559040 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.816371 2024-09-15T17:48:05+00:00 (Table 1) Age determination of ODP Site 202-1233 Kaiser, Jérôme Lamy, Frank LATITUDE: -41.000080 * LONGITUDE: -74.449860 * DATE/TIME START: 2002-04-12T00:00:00 * DATE/TIME END: 2002-04-12T00:00:00 * MINIMUM DEPTH, sediment/rock: 25.10 m * MAXIMUM DEPTH, sediment/rock: 133.75 m 2010 text/tab-separated-values, 132 data points https://doi.pangaea.de/10.1594/PANGAEA.816371 https://doi.org/10.1594/PANGAEA.816371 en eng PANGAEA Blunier, Thomas; Brook, Edward J (2001): Timing of millennial-scale climate change in Antarctica and Greenland during the last glacial period. Science, 291(5501), 109-112, https://doi.org/10.1126/science.291.5501.109 Fairbanks, Richard G; Mortlock, Richard A; Chiu, Tzu-Chien; Cao, L; Kaplan, Alexey; Guilderson, Thomas P; Fairbanks, Todd W; Bloom, Arthur L; Grootes, Pieter Meiert; Nadeau, Marie-Josée (2005): Radiocarbon calibration curve spanning 0 to 50,000 years BP based on paired 230Th/234U/238U and 14C dates on pristine corals. Quaternary Science Reviews, 24(16-17), 1781-1796, https://doi.org/10.1016/j.quascirev.2005.04.007 Kaiser, Jérôme; Lamy, Frank; Hebbeln, Dierk (2005): A 70-kyr sea surface temperature record off southern Chile (Ocean Drilling Programm Site 1233). Paleoceanography, 20(4), PA4009, https://doi.org/10.1029/2005PA001146 Lamy, Frank; Kaiser, Jérôme; Arz, Helge Wolfgang; Hebbeln, Dierk; Ninnemann, Ulysses S; Timm, Oliver; Timmermann, Axel; Toggweiler, J Robbie (2007): Modulation of the bipolar seesaw in the Southeast Pacific during Termination 1. Earth and Planetary Science Letters, 259(3-4), 400-413, https://doi.org/10.1016/j.epsl.2007.04.040 Lamy, Frank; Kaiser, Jérôme; Ninnemann, Ulysses S; Hebbeln, Dierk; Arz, Helge Wolfgang; Stoner, Joseph S (2004): Antarctic timing of surface water changes off Chile and Patagonian ice-sheet response. Science, 304(5679), 1959-1962, https://doi.org/10.1126/science.1097863 https://doi.pangaea.de/10.1594/PANGAEA.816371 https://doi.org/10.1594/PANGAEA.816371 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Kaiser, Jérôme; Lamy, Frank (2010): Links between Patagonian Ice Sheet fluctuations and Anarctic dust variability during the last glacial period (MIS 4-2). Quaternary Science Reviews, 29(11-12), 1464-1471, https://doi.org/10.1016/j.quascirev.2010.03.005 202-1233 Age 14C AMS 14C calibrated comment dated dated standard deviation Calendar age standard deviation COMPCORE Composite Core DEPTH sediment/rock Joides Resolution Leg202 Method comment Ocean Drilling Program ODP Reference/source South-East Pacific dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.81637110.1016/j.quascirev.2010.03.00510.1126/science.291.5501.10910.1016/j.quascirev.2005.04.00710.1029/2005PA00114610.1016/j.epsl.2007.04.04010.1126/science.1097863 2024-07-24T02:31:32Z Antarctic and Greenland ice-core records reveal large fluctuations of dust input on both orbital and millennial time-scales with potential global climate implications. At least during glacial periods, the Antarctic dust fluctuations appear to be largely controlled by environmental changes in southern South America. We compare dust flux records from two Antarctic ice-cores to variations in the composition of the terrigenous supply at ODP Site 1233 located off southern Chile and known to record fluctuations in the extent of the northern part of the Patagonian ice-sheet (NPIS) during the last glacial period (Marine Isotope Stage, MIS, 4 to 2). Within age uncertainties, millennial-scale glacial advances (retreats) of the NPIS correlate to Antarctic dust maxima (minima). In turn, NPIS fluctuations were closely related to offshore sea surface temperature (SST) changes. This pattern suggests a causal link involving changes in temperature, in rock flour availability, in latitudinal extensions of the westerly winds and in foehn winds in the southern Pampas and Patagonia. We further suggest that the long-term trend of dust accumulation is partly linked to the sea-level related changes in the size if the Patagonian source area due to the particular morphology of the Argentine shelf. We suggest that sea-level drops at the beginning of MIS 4 and MIS 2 were important for long-term dust increases, while changes in the Patagonian dust source regions primarily control the early dust decrease during the MIS 4/3 transition and Termination 1. Dataset Antarc* Antarctic Greenland Greenland ice core ice core Ice Sheet PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-74.449860,-74.449860,-41.000080,-41.000080) |