Quaternary glaciation of Mount Everest
The Quaternary glacial history of the Rongbuk valley on the northern slopes of Mount Everest is examined using field mapping, geomorphic and sedimentological methods, and optically stimulated luminescence (OSL) and Be-10 terrestrial cosmogenic nuclide (TCN) dating. Six major sets of moraines are pre...
Published in: | Quaternary Science Reviews |
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Language: | English |
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2009
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/quaternary-glaciation-of-mount-everest(f260283c-fb10-4ce0-8c17-49c330b0fd85).html https://doi.org/10.1016/j.quascirev.2009.02.010 |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/f260283c-fb10-4ce0-8c17-49c330b0fd85 2023-05-15T16:41:15+02:00 Quaternary glaciation of Mount Everest Owen, Lewis A. Robinson, Ruth Alison Joyce Benn, Doug I Finkel, Robert C. Davis, Nicole K. Yi, Chaolu Putkonen, Jaakko Li, Dewen Murray, Andrew S. 2009-07 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/quaternary-glaciation-of-mount-everest(f260283c-fb10-4ce0-8c17-49c330b0fd85).html https://doi.org/10.1016/j.quascirev.2009.02.010 eng eng info:eu-repo/semantics/restrictedAccess Owen , L A , Robinson , R A J , Benn , D I , Finkel , R C , Davis , N K , Yi , C , Putkonen , J , Li , D & Murray , A S 2009 , ' Quaternary glaciation of Mount Everest ' , Quaternary Science Reviews , vol. 28 , no. 15-16 , pp. 1412-1433 . https://doi.org/10.1016/j.quascirev.2009.02.010 EQUILIBRIUM-LINE ALTITUDES REGENERATIVE-DOSE PROTOCOL NORTHERN PAKISTAN LANDSCAPE EVOLUTION PAST GLACIATIONS TIBETAN PLATEAU RONGBUK VALLEY HUNZA VALLEY ICE-SHEET LUMINESCENCE article 2009 ftunstandrewcris https://doi.org/10.1016/j.quascirev.2009.02.010 2022-10-13T15:25:30Z The Quaternary glacial history of the Rongbuk valley on the northern slopes of Mount Everest is examined using field mapping, geomorphic and sedimentological methods, and optically stimulated luminescence (OSL) and Be-10 terrestrial cosmogenic nuclide (TCN) dating. Six major sets of moraines are present representing significant glacier advances or still-stands. These date to >330 ka (Tingri moraine), >41 ka (Dzakar moraine), 24-27 ka (Jilong moraine), 14-17 ka (Rongbuk moraine), 8-2 ka (Samdupo moraines) and similar to 1.6 ka (Xarlungnama moraine), and each is assigned to a distinct glacial stage named after the moraine. The Samdupo glacial stage is subdivided into Samdupo 1 (6.8-7.7 ka) and Samdupo 11 (similar to 2.4 ka). Comparison with OSL and TCN defined ages on moraines on the southern slopes of Mount Everest in the Khumbu Himal show that glaciations across the Everest massif were broadly synchronous. However, unlike the Khumbu Himal, no early Holocene glacier advance is recognized in the Rongbuk valley. This suggests that the Khumbu Himal may have received increased monsoon precipitation in the early Holocene to help increase positive glacier mass balances, while the Rongbuk valley was too sheltered to receive monsoon moisture during this time and glaciers could not advance. Comparison of equilibrium-line altitude depressions for glacial stages across Mount Everest reveals asymmetric patterns of glacier retreat that likely reflects greater glacier sensitivity to climate change on the northern slopes, possibly due to precipitation starvation. (C) 2009 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Ice Sheet University of St Andrews: Research Portal Quaternary Science Reviews 28 15-16 1412 1433 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
EQUILIBRIUM-LINE ALTITUDES REGENERATIVE-DOSE PROTOCOL NORTHERN PAKISTAN LANDSCAPE EVOLUTION PAST GLACIATIONS TIBETAN PLATEAU RONGBUK VALLEY HUNZA VALLEY ICE-SHEET LUMINESCENCE |
spellingShingle |
EQUILIBRIUM-LINE ALTITUDES REGENERATIVE-DOSE PROTOCOL NORTHERN PAKISTAN LANDSCAPE EVOLUTION PAST GLACIATIONS TIBETAN PLATEAU RONGBUK VALLEY HUNZA VALLEY ICE-SHEET LUMINESCENCE Owen, Lewis A. Robinson, Ruth Alison Joyce Benn, Doug I Finkel, Robert C. Davis, Nicole K. Yi, Chaolu Putkonen, Jaakko Li, Dewen Murray, Andrew S. Quaternary glaciation of Mount Everest |
topic_facet |
EQUILIBRIUM-LINE ALTITUDES REGENERATIVE-DOSE PROTOCOL NORTHERN PAKISTAN LANDSCAPE EVOLUTION PAST GLACIATIONS TIBETAN PLATEAU RONGBUK VALLEY HUNZA VALLEY ICE-SHEET LUMINESCENCE |
description |
The Quaternary glacial history of the Rongbuk valley on the northern slopes of Mount Everest is examined using field mapping, geomorphic and sedimentological methods, and optically stimulated luminescence (OSL) and Be-10 terrestrial cosmogenic nuclide (TCN) dating. Six major sets of moraines are present representing significant glacier advances or still-stands. These date to >330 ka (Tingri moraine), >41 ka (Dzakar moraine), 24-27 ka (Jilong moraine), 14-17 ka (Rongbuk moraine), 8-2 ka (Samdupo moraines) and similar to 1.6 ka (Xarlungnama moraine), and each is assigned to a distinct glacial stage named after the moraine. The Samdupo glacial stage is subdivided into Samdupo 1 (6.8-7.7 ka) and Samdupo 11 (similar to 2.4 ka). Comparison with OSL and TCN defined ages on moraines on the southern slopes of Mount Everest in the Khumbu Himal show that glaciations across the Everest massif were broadly synchronous. However, unlike the Khumbu Himal, no early Holocene glacier advance is recognized in the Rongbuk valley. This suggests that the Khumbu Himal may have received increased monsoon precipitation in the early Holocene to help increase positive glacier mass balances, while the Rongbuk valley was too sheltered to receive monsoon moisture during this time and glaciers could not advance. Comparison of equilibrium-line altitude depressions for glacial stages across Mount Everest reveals asymmetric patterns of glacier retreat that likely reflects greater glacier sensitivity to climate change on the northern slopes, possibly due to precipitation starvation. (C) 2009 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Owen, Lewis A. Robinson, Ruth Alison Joyce Benn, Doug I Finkel, Robert C. Davis, Nicole K. Yi, Chaolu Putkonen, Jaakko Li, Dewen Murray, Andrew S. |
author_facet |
Owen, Lewis A. Robinson, Ruth Alison Joyce Benn, Doug I Finkel, Robert C. Davis, Nicole K. Yi, Chaolu Putkonen, Jaakko Li, Dewen Murray, Andrew S. |
author_sort |
Owen, Lewis A. |
title |
Quaternary glaciation of Mount Everest |
title_short |
Quaternary glaciation of Mount Everest |
title_full |
Quaternary glaciation of Mount Everest |
title_fullStr |
Quaternary glaciation of Mount Everest |
title_full_unstemmed |
Quaternary glaciation of Mount Everest |
title_sort |
quaternary glaciation of mount everest |
publishDate |
2009 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/quaternary-glaciation-of-mount-everest(f260283c-fb10-4ce0-8c17-49c330b0fd85).html https://doi.org/10.1016/j.quascirev.2009.02.010 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Owen , L A , Robinson , R A J , Benn , D I , Finkel , R C , Davis , N K , Yi , C , Putkonen , J , Li , D & Murray , A S 2009 , ' Quaternary glaciation of Mount Everest ' , Quaternary Science Reviews , vol. 28 , no. 15-16 , pp. 1412-1433 . https://doi.org/10.1016/j.quascirev.2009.02.010 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2009.02.010 |
container_title |
Quaternary Science Reviews |
container_volume |
28 |
container_issue |
15-16 |
container_start_page |
1412 |
op_container_end_page |
1433 |
_version_ |
1766031688514666496 |