Gas and Dust Measurements for Taylor Glacier and Taylor Dome Ice Cores
New ice cores retrieved from the Taylor Glacier (Antarctica) blue ice area contain ice and air spanning the Marine Isotope Stage (MIS) 5-4 transition, a period of global cooling and ice sheet expansion. We determine chronologies for the ice and air bubbles in the new ice cores by visually matching v...
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U.S. Antarctic Program (USAP) Data Center
2019
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Online Access: | https://dx.doi.org/10.15784/601198 http://www.usap-dc.org/view/dataset/601198 |
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ftdatacite:10.15784/601198 2023-05-15T13:30:27+02:00 Gas and Dust Measurements for Taylor Glacier and Taylor Dome Ice Cores Baggenstos, Daniel Barker, Stephen Bauska, Thomas Brook, Edward J Dyonisius, Michael Marcott, Shaun Mcconnell, Joseph Menking, James Petrenko, Vasilii Rhodes, Rachel Severinghaus, Jeffrey Shackleton, Sarah 2019 https://dx.doi.org/10.15784/601198 http://www.usap-dc.org/view/dataset/601198 en eng U.S. Antarctic Program (USAP) Data Center Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0] https://creativecommons.org/licenses/by-nc-sa/3.0/us CC-BY-NC-SA CH4 CO2 Methane blue ice area Mass Spectrometer Nitrogen Isotopes Oxygen Isotopes Taylor Dome Ice Core Ice Core ChemistryIce Glaciology Ice Core Records Paleoclimate Antarctica Glaciers/Ice Sheet Snow/Ice Cryosphere Geochemistry FOS Earth and related environmental sciences dataset Dataset 2019 ftdatacite https://doi.org/10.15784/601198 2021-11-05T12:55:41Z New ice cores retrieved from the Taylor Glacier (Antarctica) blue ice area contain ice and air spanning the Marine Isotope Stage (MIS) 5-4 transition, a period of global cooling and ice sheet expansion. We determine chronologies for the ice and air bubbles in the new ice cores by visually matching variations in gas- and ice- phase tracers to preexisting ice core records. The chronologies reveal an ice age-gas age difference (Δage) approaching 10 ka during MIS 4, implying very low snow accumulation in the Taylor Glacier accumulation zone. A revised chronology for the analagous section of the Taylor Dome ice core (84 to 55 ka), located to the south of the Taylor Glacier accumulation zone, shows that Δage did not exceed 3 ka. The difference in Δage between the two records during MIS 4 is similar in magnitude but opposite in direction to what is observed at the Last Glacial Maximum. This relationship implies that a spatial gradient in snow accumulation existed across the Taylor Dome region during MIS 4 that was oriented in the opposite direction of the accumulation gradient during the Last Glacial Maximum. Dataset Antarc* Antarctica ice core Ice Sheet Taylor Glacier DataCite Metadata Store (German National Library of Science and Technology) Taylor Dome ENVELOPE(157.667,157.667,-77.667,-77.667) Taylor Glacier ENVELOPE(162.167,162.167,-77.733,-77.733) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
CH4 CO2 Methane blue ice area Mass Spectrometer Nitrogen Isotopes Oxygen Isotopes Taylor Dome Ice Core Ice Core ChemistryIce Glaciology Ice Core Records Paleoclimate Antarctica Glaciers/Ice Sheet Snow/Ice Cryosphere Geochemistry FOS Earth and related environmental sciences |
spellingShingle |
CH4 CO2 Methane blue ice area Mass Spectrometer Nitrogen Isotopes Oxygen Isotopes Taylor Dome Ice Core Ice Core ChemistryIce Glaciology Ice Core Records Paleoclimate Antarctica Glaciers/Ice Sheet Snow/Ice Cryosphere Geochemistry FOS Earth and related environmental sciences Baggenstos, Daniel Barker, Stephen Bauska, Thomas Brook, Edward J Dyonisius, Michael Marcott, Shaun Mcconnell, Joseph Menking, James Petrenko, Vasilii Rhodes, Rachel Severinghaus, Jeffrey Shackleton, Sarah Gas and Dust Measurements for Taylor Glacier and Taylor Dome Ice Cores |
topic_facet |
CH4 CO2 Methane blue ice area Mass Spectrometer Nitrogen Isotopes Oxygen Isotopes Taylor Dome Ice Core Ice Core ChemistryIce Glaciology Ice Core Records Paleoclimate Antarctica Glaciers/Ice Sheet Snow/Ice Cryosphere Geochemistry FOS Earth and related environmental sciences |
description |
New ice cores retrieved from the Taylor Glacier (Antarctica) blue ice area contain ice and air spanning the Marine Isotope Stage (MIS) 5-4 transition, a period of global cooling and ice sheet expansion. We determine chronologies for the ice and air bubbles in the new ice cores by visually matching variations in gas- and ice- phase tracers to preexisting ice core records. The chronologies reveal an ice age-gas age difference (Δage) approaching 10 ka during MIS 4, implying very low snow accumulation in the Taylor Glacier accumulation zone. A revised chronology for the analagous section of the Taylor Dome ice core (84 to 55 ka), located to the south of the Taylor Glacier accumulation zone, shows that Δage did not exceed 3 ka. The difference in Δage between the two records during MIS 4 is similar in magnitude but opposite in direction to what is observed at the Last Glacial Maximum. This relationship implies that a spatial gradient in snow accumulation existed across the Taylor Dome region during MIS 4 that was oriented in the opposite direction of the accumulation gradient during the Last Glacial Maximum. |
format |
Dataset |
author |
Baggenstos, Daniel Barker, Stephen Bauska, Thomas Brook, Edward J Dyonisius, Michael Marcott, Shaun Mcconnell, Joseph Menking, James Petrenko, Vasilii Rhodes, Rachel Severinghaus, Jeffrey Shackleton, Sarah |
author_facet |
Baggenstos, Daniel Barker, Stephen Bauska, Thomas Brook, Edward J Dyonisius, Michael Marcott, Shaun Mcconnell, Joseph Menking, James Petrenko, Vasilii Rhodes, Rachel Severinghaus, Jeffrey Shackleton, Sarah |
author_sort |
Baggenstos, Daniel |
title |
Gas and Dust Measurements for Taylor Glacier and Taylor Dome Ice Cores |
title_short |
Gas and Dust Measurements for Taylor Glacier and Taylor Dome Ice Cores |
title_full |
Gas and Dust Measurements for Taylor Glacier and Taylor Dome Ice Cores |
title_fullStr |
Gas and Dust Measurements for Taylor Glacier and Taylor Dome Ice Cores |
title_full_unstemmed |
Gas and Dust Measurements for Taylor Glacier and Taylor Dome Ice Cores |
title_sort |
gas and dust measurements for taylor glacier and taylor dome ice cores |
publisher |
U.S. Antarctic Program (USAP) Data Center |
publishDate |
2019 |
url |
https://dx.doi.org/10.15784/601198 http://www.usap-dc.org/view/dataset/601198 |
long_lat |
ENVELOPE(157.667,157.667,-77.667,-77.667) ENVELOPE(162.167,162.167,-77.733,-77.733) |
geographic |
Taylor Dome Taylor Glacier |
geographic_facet |
Taylor Dome Taylor Glacier |
genre |
Antarc* Antarctica ice core Ice Sheet Taylor Glacier |
genre_facet |
Antarc* Antarctica ice core Ice Sheet Taylor Glacier |
op_rights |
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0] https://creativecommons.org/licenses/by-nc-sa/3.0/us |
op_rightsnorm |
CC-BY-NC-SA |
op_doi |
https://doi.org/10.15784/601198 |
_version_ |
1766008637999808512 |