Spatial pattern of accumulation at Taylor Dome during the last glacial inception: stratigraphic constraints from Taylor Glacier
Abstract. A new ice core retrieved from the Taylor Glacier blue ice area contains ice and air spanning the Marine Isotope Stage (MIS) 5/4 transition (74 to 65 ka), a period of global cooling and glacial inception. Dating the ice and air bubbles in the new ice core reveals an ice age-gas age differen...
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2018
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Online Access: | https://escholarship.org/uc/item/2s64b8tn https://escholarship.org/content/qt2s64b8tn/qt2s64b8tn.pdf https://doi.org/10.5194/cp-2018-53 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt2s64b8tn 2024-09-09T19:44:45+00:00 Spatial pattern of accumulation at Taylor Dome during the last glacial inception: stratigraphic constraints from Taylor Glacier Menking, James A Brook, Edward J Shackleton, Sarah A Severinghaus, Jeffrey P Dyonisius, Michael Petrenko, Vasilii McConnell, Joseph R Rhodes, Rachael H Bauska, Thomas K Baggenstos, Daniel Marcott, Shaun Barker, Stephen 2018-05-17 application/pdf https://escholarship.org/uc/item/2s64b8tn https://escholarship.org/content/qt2s64b8tn/qt2s64b8tn.pdf https://doi.org/10.5194/cp-2018-53 unknown eScholarship, University of California qt2s64b8tn https://escholarship.org/uc/item/2s64b8tn https://escholarship.org/content/qt2s64b8tn/qt2s64b8tn.pdf doi:10.5194/cp-2018-53 public article 2018 ftcdlib https://doi.org/10.5194/cp-2018-53 2024-06-28T06:28:19Z Abstract. A new ice core retrieved from the Taylor Glacier blue ice area contains ice and air spanning the Marine Isotope Stage (MIS) 5/4 transition (74 to 65 ka), a period of global cooling and glacial inception. Dating the ice and air bubbles in the new ice core reveals an ice age-gas age difference (Δage) approaching 10 ka during MIS 4, implying very low accumulation at the Taylor Glacier accumulation zone on the northern flank of Taylor Dome. A revised chronology for the Taylor Dome ice core (80 to 55 ka), situated to the south of the Taylor Glacier accumulation zone, shows that Δage did not exceed 2.5 ka at that location. The difference in Δage between the new Taylor Glacier ice core and the Taylor Dome ice core implies a spatial gradient in snow accumulation across Taylor Dome that intensified during the last glacial inception and through MIS 4. Article in Journal/Newspaper ice core Taylor Glacier University of California: eScholarship 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 |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
description |
Abstract. A new ice core retrieved from the Taylor Glacier blue ice area contains ice and air spanning the Marine Isotope Stage (MIS) 5/4 transition (74 to 65 ka), a period of global cooling and glacial inception. Dating the ice and air bubbles in the new ice core reveals an ice age-gas age difference (Δage) approaching 10 ka during MIS 4, implying very low accumulation at the Taylor Glacier accumulation zone on the northern flank of Taylor Dome. A revised chronology for the Taylor Dome ice core (80 to 55 ka), situated to the south of the Taylor Glacier accumulation zone, shows that Δage did not exceed 2.5 ka at that location. The difference in Δage between the new Taylor Glacier ice core and the Taylor Dome ice core implies a spatial gradient in snow accumulation across Taylor Dome that intensified during the last glacial inception and through MIS 4. |
format |
Article in Journal/Newspaper |
author |
Menking, James A Brook, Edward J Shackleton, Sarah A Severinghaus, Jeffrey P Dyonisius, Michael Petrenko, Vasilii McConnell, Joseph R Rhodes, Rachael H Bauska, Thomas K Baggenstos, Daniel Marcott, Shaun Barker, Stephen |
spellingShingle |
Menking, James A Brook, Edward J Shackleton, Sarah A Severinghaus, Jeffrey P Dyonisius, Michael Petrenko, Vasilii McConnell, Joseph R Rhodes, Rachael H Bauska, Thomas K Baggenstos, Daniel Marcott, Shaun Barker, Stephen Spatial pattern of accumulation at Taylor Dome during the last glacial inception: stratigraphic constraints from Taylor Glacier |
author_facet |
Menking, James A Brook, Edward J Shackleton, Sarah A Severinghaus, Jeffrey P Dyonisius, Michael Petrenko, Vasilii McConnell, Joseph R Rhodes, Rachael H Bauska, Thomas K Baggenstos, Daniel Marcott, Shaun Barker, Stephen |
author_sort |
Menking, James A |
title |
Spatial pattern of accumulation at Taylor Dome during the last glacial inception: stratigraphic constraints from Taylor Glacier |
title_short |
Spatial pattern of accumulation at Taylor Dome during the last glacial inception: stratigraphic constraints from Taylor Glacier |
title_full |
Spatial pattern of accumulation at Taylor Dome during the last glacial inception: stratigraphic constraints from Taylor Glacier |
title_fullStr |
Spatial pattern of accumulation at Taylor Dome during the last glacial inception: stratigraphic constraints from Taylor Glacier |
title_full_unstemmed |
Spatial pattern of accumulation at Taylor Dome during the last glacial inception: stratigraphic constraints from Taylor Glacier |
title_sort |
spatial pattern of accumulation at taylor dome during the last glacial inception: stratigraphic constraints from taylor glacier |
publisher |
eScholarship, University of California |
publishDate |
2018 |
url |
https://escholarship.org/uc/item/2s64b8tn https://escholarship.org/content/qt2s64b8tn/qt2s64b8tn.pdf https://doi.org/10.5194/cp-2018-53 |
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 |
ice core Taylor Glacier |
genre_facet |
ice core Taylor Glacier |
op_relation |
qt2s64b8tn https://escholarship.org/uc/item/2s64b8tn https://escholarship.org/content/qt2s64b8tn/qt2s64b8tn.pdf doi:10.5194/cp-2018-53 |
op_rights |
public |
op_doi |
https://doi.org/10.5194/cp-2018-53 |
_version_ |
1809914387586088960 |