Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet
Deposits corresponding to multiple periods of glaciation are preserved in ice-free areas adjacent to Reedy Glacier, southern Transantarctic Mountains. Glacial geologic mapping, supported by (10)Be surface-exposure dating, shows that Reedy Glacier was significantly thicker than today multiple times d...
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Online Access: | http://hdl.handle.net/10379/14780 https://doi.org/10.1016/j.quascirev.2009.07.001 |
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ftnuigalway:oai:aran.library.nuigalway.ie/:10379/14780 2023-06-11T04:06:51+02:00 Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet Bromley, Gordon R. M. Hall, Brenda L. Stone, John O. Conway, Howard Todd, Claire E. 2018-12-27T22:22:28Z application/pdf http://hdl.handle.net/10379/14780 https://doi.org/10.1016/j.quascirev.2009.07.001 en eng Elsevier Quaternary Science Reviews Bromley, Gordon R. M., Hall, Brenda L., Stone, John O., Conway, Howard, & Todd, Claire E. (2010). Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet. Quaternary Science Reviews, 29(3), 384-398. doi: https://doi.org/10.1016/j.quascirev.2009.07.001 0277-3791 1873-457X http://hdl.handle.net/10379/14780 doi:10.1016/j.quascirev.2009.07.001 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ SOUTHERN VICTORIA LAND SIRIUS GROUP SEDIMENTS DRY VALLEYS AREA SURFACE FLUCTUATIONS DRAINAGE SYSTEM MCMURDO SOUND TAYLOR VALLEY ROSS SEA MAXIMUM HISTORY Article 2018 ftnuigalway https://doi.org/10.1016/j.quascirev.2009.07.001 2023-05-28T18:06:11Z Deposits corresponding to multiple periods of glaciation are preserved in ice-free areas adjacent to Reedy Glacier, southern Transantarctic Mountains. Glacial geologic mapping, supported by (10)Be surface-exposure dating, shows that Reedy Glacier was significantly thicker than today multiple times during the mid-to-late Cenozoic. Longitudinal-surface profiles reconstructed from the upper limits of deposits indicate greater thickening at the glacier mouth than at the head during these episodes, indicating that Reedy Glacier responded primarily to changes in the thickness of the West Antarctic Ice Sheet. Surface-exposure ages suggest this relationship has been in place since at least 5 Ma. The last period of thickening of Reedy Glacier occurred during Marine Isotope Stage 2, at which time the glacier surface near its confluence with the West Antarctic Ice Sheet was at least 500 m higher than today. (C) 2009 Elsevier Ltd. All rights reserved. peer-reviewed Article in Journal/Newspaper Antarc* Antarctic Ice Sheet McMurdo Sound Reedy Glacier Ross Sea Victoria Land National University of Ireland (NUI), Galway: ARAN Antarctic Ross Sea Victoria Land West Antarctic Ice Sheet McMurdo Sound Transantarctic Mountains Taylor Valley ENVELOPE(163.000,163.000,-77.617,-77.617) Sirius ENVELOPE(163.250,163.250,-84.133,-84.133) Reedy Glacier ENVELOPE(-134.000,-134.000,-85.500,-85.500) Quaternary Science Reviews 29 3-4 384 398 |
institution |
Open Polar |
collection |
National University of Ireland (NUI), Galway: ARAN |
op_collection_id |
ftnuigalway |
language |
English |
topic |
SOUTHERN VICTORIA LAND SIRIUS GROUP SEDIMENTS DRY VALLEYS AREA SURFACE FLUCTUATIONS DRAINAGE SYSTEM MCMURDO SOUND TAYLOR VALLEY ROSS SEA MAXIMUM HISTORY |
spellingShingle |
SOUTHERN VICTORIA LAND SIRIUS GROUP SEDIMENTS DRY VALLEYS AREA SURFACE FLUCTUATIONS DRAINAGE SYSTEM MCMURDO SOUND TAYLOR VALLEY ROSS SEA MAXIMUM HISTORY Bromley, Gordon R. M. Hall, Brenda L. Stone, John O. Conway, Howard Todd, Claire E. Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet |
topic_facet |
SOUTHERN VICTORIA LAND SIRIUS GROUP SEDIMENTS DRY VALLEYS AREA SURFACE FLUCTUATIONS DRAINAGE SYSTEM MCMURDO SOUND TAYLOR VALLEY ROSS SEA MAXIMUM HISTORY |
description |
Deposits corresponding to multiple periods of glaciation are preserved in ice-free areas adjacent to Reedy Glacier, southern Transantarctic Mountains. Glacial geologic mapping, supported by (10)Be surface-exposure dating, shows that Reedy Glacier was significantly thicker than today multiple times during the mid-to-late Cenozoic. Longitudinal-surface profiles reconstructed from the upper limits of deposits indicate greater thickening at the glacier mouth than at the head during these episodes, indicating that Reedy Glacier responded primarily to changes in the thickness of the West Antarctic Ice Sheet. Surface-exposure ages suggest this relationship has been in place since at least 5 Ma. The last period of thickening of Reedy Glacier occurred during Marine Isotope Stage 2, at which time the glacier surface near its confluence with the West Antarctic Ice Sheet was at least 500 m higher than today. (C) 2009 Elsevier Ltd. All rights reserved. peer-reviewed |
format |
Article in Journal/Newspaper |
author |
Bromley, Gordon R. M. Hall, Brenda L. Stone, John O. Conway, Howard Todd, Claire E. |
author_facet |
Bromley, Gordon R. M. Hall, Brenda L. Stone, John O. Conway, Howard Todd, Claire E. |
author_sort |
Bromley, Gordon R. M. |
title |
Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet |
title_short |
Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet |
title_full |
Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet |
title_fullStr |
Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet |
title_full_unstemmed |
Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet |
title_sort |
late cenozoic deposits at reedy glacier, transantarctic mountains: implications for former thickness of the west antarctic ice sheet |
publisher |
Elsevier |
publishDate |
2018 |
url |
http://hdl.handle.net/10379/14780 https://doi.org/10.1016/j.quascirev.2009.07.001 |
long_lat |
ENVELOPE(163.000,163.000,-77.617,-77.617) ENVELOPE(163.250,163.250,-84.133,-84.133) ENVELOPE(-134.000,-134.000,-85.500,-85.500) |
geographic |
Antarctic Ross Sea Victoria Land West Antarctic Ice Sheet McMurdo Sound Transantarctic Mountains Taylor Valley Sirius Reedy Glacier |
geographic_facet |
Antarctic Ross Sea Victoria Land West Antarctic Ice Sheet McMurdo Sound Transantarctic Mountains Taylor Valley Sirius Reedy Glacier |
genre |
Antarc* Antarctic Ice Sheet McMurdo Sound Reedy Glacier Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctic Ice Sheet McMurdo Sound Reedy Glacier Ross Sea Victoria Land |
op_relation |
Quaternary Science Reviews Bromley, Gordon R. M., Hall, Brenda L., Stone, John O., Conway, Howard, & Todd, Claire E. (2010). Late Cenozoic deposits at Reedy Glacier, Transantarctic Mountains: implications for former thickness of the West Antarctic Ice Sheet. Quaternary Science Reviews, 29(3), 384-398. doi: https://doi.org/10.1016/j.quascirev.2009.07.001 0277-3791 1873-457X http://hdl.handle.net/10379/14780 doi:10.1016/j.quascirev.2009.07.001 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.1016/j.quascirev.2009.07.001 |
container_title |
Quaternary Science Reviews |
container_volume |
29 |
container_issue |
3-4 |
container_start_page |
384 |
op_container_end_page |
398 |
_version_ |
1768379025787453440 |