Japan Geoscience Union Meeting 2019

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[J] Poster

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS19] Paleoclimatology and paleoceanography

Thu. May 30, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Yusuke Okazaki(Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University), Akira Oka(Atmosphere and Ocean Research Institute, The University of Tokyo), Michinobu Kuwae(Center for Marine Environmental Studies), Hitoshi Hasegawa(Faculty of Science and Technology, Kochi University)

[MIS19-P13] Environmental changes in northern Mongolia in During the Late Pleistocene: chemical analyses of lacustrine sedimentary sequences in Darhad basin

Yumiko Ohno1, Sayuri Naito1, *Nagayoshi Katsuta1, Takuma Murakami3, Shinya Ochiai2, Noriko Hasebe2, Shin-ichi kawaka4 (1.Faculty of Education, Gifu University, 2.Institute of Natural and Environmental Technology, Kanazawa University, 3.Horonobe Research Inst. for the Subsurface Environment, 4.Faculty of Education, Gifu Shotoku Gakuen University)

Keywords:north Mongolia, sediment, paleoglacial lake

Spread of modern human (Homo sapiens) from Africa to Eurasia seems to have occurred in the periods from ca. 60 kyrs ago to ca. 50 kyrs ago via two routes from western Asia into northern Eurasia and across Arabia into southern Asia. To understand relationship between environmental changes and human migration in central Eurasia, we reconstructed a 120-kyr sediment record of environmental change using the Darhad basin (northern Mogolia) sediment core with a nondestructive μ-XRF techniques of Horiba SXAM, XRD analysis, and petrolograhic observation.