Japan Geoscience Union Meeting 2018

Presentation information

[JJ] Oral

A (Atmospheric and Hydrospheric Sciences) » A-CC Cryospheric Sciences & Cold District Environment

[A-CC29] Ice cores and paleoenvironmental modeling

Tue. May 22, 2018 9:00 AM - 10:30 AM 201A (2F International Conference Hall, Makuhari Messe)

convener:Ryu Uemura(University of the Ryukyus), Kenji Kawamura(National Institute of Polar Research, Research Organization of Information and Systems), Ayako Abe-Ouchi(東京大学大気海洋研究所, 共同), Nozomu Takeuchi(Chiba University), Chairperson:Takeuchi Nozomu(千葉大学), Hattori Shohei(東工大)

9:00 AM - 9:15 AM

[ACC29-01] Mineralogical analysis of debris in ice cores drilled on the Western Cwn of Khumbu Glacier of Mt. Everest in Himalayas

*Nozomu Takeuchi1, Yoichiro Hori1, Minoru Yoshida2, Yoshiyuki Fujii3 (1.Chiba University, 2.Hakusan Co Ltd, 3.National Institute of Polar Research)

Keywords:Himalayas, debris covered glacier, Everest

Two shallow ice cores have been drilled on the Western Cwm of Khumbu Glacier in winter of 1980 by the Japanese winter climbing expedition for Mt. Everest led by a famous climber, Naomi Uemura. The ice cores were drilled at 6100 m a.s.l. and 8.83 m in length (Core 1), and Core2 drilled at 6400 m a.s.l. and 4.06 m in length (Core 2). The upper core (Core 2) contained abundant debris, which may be derived from the rock cliffs around the driling site. In this study, we reported the meneralogical characteristics of the debris and discuss their provinance and process to be transported to the lower ablation part of the glacier.