Late Pleistocene and Holocene vegetation and climate records from Lake Kotokel, central Baikal region

Shichi, Koji; Takahara, Hikaru; Krivonogov, Sergey K.; Безрукова, Е. В.; Kashiwaya, Kenji; Takehara, Akihide; Nakamura, Toshio

doi:10.1016/j.quaint.2009.02.005

Cited by 89 publications

(60 citation statements)

References 31 publications

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“…This period was not only colder but also drier than the preceding OIS-3 (Prokopenko et al, 2001;Mackay, 2007). Cold conditions remained until at least 14.5 ka (Shichi et al, 2009), followed by warmer and possibly wetter than present-day conditions at 14-13 ka (Shichi et al, 2009;Tarasov et al, 2009). Cooling then returned between 12.8 and 11.6 ka, during the Younger Dryas Chronozone (Mackay, 2007;Shichi et al, 2009;Tarasov et al, 2009).…”

Section: Comparison With Previous Glacial Chronologies Fo R Transbaikmentioning

confidence: 96%

“…Cold conditions remained until at least 14.5 ka (Shichi et al, 2009), followed by warmer and possibly wetter than present-day conditions at 14-13 ka (Shichi et al, 2009;Tarasov et al, 2009). Cooling then returned between 12.8 and 11.6 ka, during the Younger Dryas Chronozone (Mackay, 2007;Shichi et al, 2009;Tarasov et al, 2009). 19 Our data indicate that extensive glaciation existed during the coldest part of OIS-2 in the high mountains of Transbaikalia with a system of branching valley glaciers feeding from the Kodar Mountains into the Vitim valley and into the Chara Depression, which also received glaciers from the Udokan Range (Figs.…”

Section: Comparison With Previous Glacial Chronologies Fo R Transbaikmentioning

confidence: 99%

“…If the large spread in 10Be concentrations resulted from widespread and varied nuclide inheritance (despite this being rather uncommon; Heyman et al, 2011), then the youngest age for each deposit would be the more reliable as it would contain the lowest proportion of inheritance and therefore a minimum age model would be most appropriate. However, in that case, half of the sampled moraines would be of mid-Holocene age, which is highly implausible considering the available information on past climate and glacial chronologies from the wider region (Mackay, 2007;Shichi et al, 2009;Tarasov et al, 2009;Arzhannikov et al, 2012). 15 Alternatively, we infer that processes causing age underestimation have affected some of our samples.…”

Section: Glaciation In the High Mountain Ranges: Kodar And Udokanmentioning

confidence: 99%

“…Notwithstanding Mackay's (2007, p. 198) view that "the transition from the end of the last glacial into the Holocene (Termination 1) was rapid in Lake Baikal (only c. 4 ka)", climate reconstructions elsewhere indicate that conditions remained cold until ~14.5 ka, then cooled again after warming briefly at 14.5-13 ka, coincident with the B0lling-Aller0d interstadial (Shichi et al, 2009;Tarasov et al, 2009). Unfortunately, the large spread in our moraine boulder exposure ages makes it difficult to provide a reliable conclusion on the presence of a Late Glacial ice re-advance in the study area.…”

Section: A Late Glacial Readvance?mentioning

confidence: 99%

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Extensive glaciation in Transbaikalia, Siberia, at the Last Glacial Maximum

Margold

Jansen

Gurinov

et al. 2016

Quaternary Science Reviews

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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. geomorphological evidence of a much more extensive, ice-cap type glaciation at a time that is yet to be firmly resolved. KeywordsGlaciation, Transbaikalia, Last Glacial Maximum, Cosmogenic 1 * * * * * * * * 10Be exposure dating, Optically stimulated luminescence. Highlights-Eighteen 10Be exposure ages on moraines in high mountains of Transbaikalia, Siberia.-Large ice fields existed in the mountains of Transbaikalia at the global LGM.-Lower mountain ranges of Transbaikalia were also heavily glaciated at the LGM.-Evidence exists for an extensive ice cap, the timing of which is yet to be resolved.

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Section: Comparison With Previous Glacial Chronologies Fo R Transbaikmentioning

confidence: 96%

Section: Comparison With Previous Glacial Chronologies Fo R Transbaikmentioning

confidence: 99%

Section: Glaciation In the High Mountain Ranges: Kodar And Udokanmentioning

confidence: 99%

Section: A Late Glacial Readvance?mentioning

confidence: 99%

See 2 more Smart Citations

Extensive glaciation in Transbaikalia, Siberia, at the Last Glacial Maximum

Margold

Jansen

Gurinov

et al. 2016

Quaternary Science Reviews

View full text Add to dashboard Cite

show abstract

“…These tasks can take advantage of the existing proxy records for the region, quantitative climate and vegetation reconstructions (Tarasov et al, 2007a(Tarasov et al, , 2009, numerical simulations already in place or in progress (Bush 2004(Bush , 2005White and Bush, 2010), and new proxy data of better resolution we hope to obtain from coring Lake Kotokel" near Baikal (Figure 2; Shichi et al 2009;Bezrukova et al, 2010).…”

Section: Empirical Aspectsmentioning

confidence: 99%

Environmental change and cultural dynamics of Holocene hunter–gatherers in Northeast Asia: Comparative analyses and research potentials in Cis-Baikal (Siberia, Russia) and Hokkaido (Japan)

Weber

Jordan

Katô

2013

Quaternary International

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(250 words)While substantial progress has been achieved in hunter-gatherer research over the last century, it is still the case that our understanding of the cultural dynamism, variability, and resilience of Holocene hunter-gatherers remains rather impoverished. Emerging archaeological insights suggest that the prehistory of many forager societies included periods of sudden cultural transformation, marked by major shifts in subsistence strategies, settlement patterns and associated social life. Recent theoretical and methodological advances are enabling archaeologists to reconstruct the cultural dynamics of Holocene hunter-gatherers in an unprecedented degree of detail. This is especially true in regions that contain large prehistoric cemeteries, which can provide the base data for bioarchaeological reconstruction of individual life histories, shedding light on forager life-ways, their subsistence strategies and mobility patterns. Renewed attention is also being directed at the role of unstable environments and climate, which would have formed important contextual factors influencing how local cultural dynamics were played out. However, identifying explicit causal links between environmental instability and culture change remains empirically challenging. This paper investigates the major sequences of Holocene hunter-gatherer culture-change in two regions of Northeast Asia and details how the new Baikal-Hokkaido Archaeology Project will be researching the causal factors driving these cultural processes, including the possible role of climate and environment.

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Thin on the Ground

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Late Pleistocene and Holocene vegetation and climate records from Lake Kotokel, central Baikal region

Cited by 89 publications

References 31 publications

Extensive glaciation in Transbaikalia, Siberia, at the Last Glacial Maximum

Extensive glaciation in Transbaikalia, Siberia, at the Last Glacial Maximum

Environmental change and cultural dynamics of Holocene hunter–gatherers in Northeast Asia: Comparative analyses and research potentials in Cis-Baikal (Siberia, Russia) and Hokkaido (Japan)

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