Proceedings of the Korean Quaternary Association Conference (한국제4기학회:학술대회논문집)
- 2005.10a
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- Pages.34-39
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- 2005
Rapid climate change during the deglaciation of Lake Hovsgol, Mongolia
- Chun, Jong-Hwa (Department of Geology, Kangwon National University) ;
- Cheong, Dae-Kyo (Department of Geology, Kangwon National University)
- Published : 2005.10.21
Abstract
A 120-cm core recovered from Lake Hovsgol, the northern Mongolia provides evidence for climate variability since the Marine Isotope Stage 3, representing a sharp lithological change. The lowermost part of the core consists of diatom-barren calcareous silty clay without coarse sands, framboidal pyrite, and biogenic components deposited during the MIS 3. Following the last glacial maximum, in-situ moss is included in the sediments, as lake-level was retreated by cold and dry environment with low precipitation. The AMS radiocarbon ages of the plant fragments match a marked lithologic boundary between 14,060 and 14,325