globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2015.11.018
Scopus记录号: 2-s2.0-84949661218
论文题名:
Extensive glaciation in Transbaikalia, Siberia, at the Last Glacial Maximum
作者: Margold M.; Jansen J.D.; Gurinov A.L.; Codilean A.T.; Fink D.; Preusser F.; Reznichenko N.V.; Mifsud C.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 132
起始页码: 161
结束页码: 174
语种: 英语
英文关键词: Cosmogenic 10Be exposure dating ; Glaciation ; Last Glacial Maximum ; Optically stimulated luminescence ; Transbaikalia
Scopus关键词: Glaciers ; Ice ; Lakes ; Landforms ; Luminescence ; Cosmogenic ; Glaciation ; Last Glacial Maximum ; Optically stimulated luminescence ; Transbaikalia ; Glacial geology ; Chara
英文摘要: Successively smaller glacial extents have been proposed for continental Eurasia during the stadials of the last glacial period leading up to the Last Glacial Maximum (LGM). At the same time the large mountainous region east of Lake Baikal, Transbaikalia, has remained unexplored in terms of glacial chronology despite clear geomorphological evidence of substantial past glaciations. We have applied cosmogenic 10Be exposure dating and optically stimulated luminescence to establish the first quantitative glacial chronology for this region. Based on eighteen exposure ages from five moraine complexes, we propose that large mountain ice fields existed in the Kodar and Udokan mountains during Oxygen Isotope Stage 2, commensurate with the global LGM. These ice fields fed valley glaciers (>100 km in length) reaching down to the Chara Depression between the Kodar and Udokan mountains and to the valley of the Vitim River northwest of the Kodar Mountains. Two of the investigated moraines date to the Late Glacial, but indications of incomplete exposure among some of the sampled boulders obscure the specific details of the post-LGM glacial history. In addition to the LGM ice fields in the highest mountains of Transbaikalia, we report geomorphological evidence of a much more extensive, ice-cap type glaciation at a time that is yet to be firmly resolved. © 2015 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59707
Appears in Collections:过去全球变化的重建

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作者单位: Department of Physical Geography, Stockholm University, Stockholm, Sweden; Department of Geomorphology and Palaeogeography, Lomonosov Moscow State University, Leninskie gory, GSP-1, Moscow, Russian Federation; School of Earth and Environmental Sciences, University of Wollongong, Northfields Avenue, Wollongong, NSW, Australia; Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW, Australia; Department of Geography, Durham University, Lower Mountjoy, South Road, Durham, United Kingdom; Institute of Earth and Environmental Science, University of Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam-Golm, Germany; Institute of Earth and Environmental Sciences, Albert-Ludwigs-Universität Freiburg, Albertstr. 23-B, Freiburg, Germany

Recommended Citation:
Margold M.,Jansen J.D.,Gurinov A.L.,et al. Extensive glaciation in Transbaikalia, Siberia, at the Last Glacial Maximum[J]. Quaternary Science Reviews,2016-01-01,132
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