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Paleoglaciation on ...
Paleoglaciation on opposite flanks of the Ikh-Turgen Mountains, Central Asia : Importance of style of moraine deposition for 10-Be surface exposure dating
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- Blomdin, Robin, 1986- (author)
- Stockholms universitet,Institutionen för naturgeografi
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- Stroeven, Arjen P. (author)
- Stockholms universitet,Institutionen för naturgeografi
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- Harbor, Jonathan M. (author)
- Stockholms universitet,Institutionen för naturgeografi
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show more...
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- Gribenski, Natacha (author)
- Stockholms universitet,Institutionen för naturgeografi
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Caffee, Marc W. (author)
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- Heyman, Jakob (author)
- Stockholms universitet,Institutionen för naturgeografi
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Rogozhina, Irina (author)
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Ivanov, Mikhail N. (author)
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Petrakov, Dmitry A. (author)
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Walther, Michael (author)
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Rudoy, Alexei N. (author)
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Zhang, Wei (author)
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Orkhonselenge, Alexander (author)
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- Hättestrand, Clas (author)
- Stockholms universitet,Institutionen för naturgeografi
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Lifton, Nathaniel A. (author)
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Jansson, Krister N. (author)
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(creator_code:org_t)
- English.
- Related links:
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https://urn.kb.se/re...
Abstract
Subject headings
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- The ages of marginal moraines that record extensive glacier expansions across the Altai Mountains of Central Asia are poorly documented. We present 18 10Be exposure ages from moraines in valleys on opposite flanks of the Ikh-Turgen Mountains. On the eastern side, exposure ages from a latero-frontal moraine indicate deglaciation during MIS 3 (45.3±2.7 ka) and MIS 2 (22.8±3.5 ka). Corresponding exposure ages, from the western side, indicate a more complex story with large scatter (~14-53 ka). Owing to their close proximity, the paleoglaciers should have responded similarly to climate forcing, yet they exhibited a distinctly different behavior. We propose that differences in glacier dynamics caused differences in ice-marginal depositional environments, explaining the scatter in exposure ages on the western side. This study shows the importance of style of deposition in chronological studies of glacial landforms and demonstrates that certain moraine types can be difficult to use as paleoclimate proxies.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Keyword
- Physical Geography
- naturgeografi
Publication and Content Type
- vet (subject category)
- ovr (subject category)
To the university's database
- By the author/editor
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Blomdin, Robin, ...
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Stroeven, Arjen ...
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Harbor, Jonathan ...
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Gribenski, Natac ...
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Caffee, Marc W.
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Heyman, Jakob
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show more...
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Rogozhina, Irina
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Ivanov, Mikhail ...
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Petrakov, Dmitry ...
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Walther, Michael
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Rudoy, Alexei N.
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Zhang, Wei
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Orkhonselenge, A ...
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Hättestrand, Cla ...
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Lifton, Nathanie ...
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Jansson, Krister ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Physical Geograp ...
- By the university
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Stockholm University