2024-03-29T15:08:38Z
https://kitami-it.repo.nii.ac.jp/oai
oai:kitami-it.repo.nii.ac.jp:00007191
2022-12-13T02:25:05Z
1:87
Improvements to the JARE deep ice core drill
Takahashi, Akiyoshi
Fujii, Yoshiyuki
Azuma, Nobuhiko
Motoyama, Hideaki
Shinbori, Kunio
Tanaka, Yoichi
Narita, Hideki
Nakayama, Yoshiki
Kameda, Takao
Fujita, Shuji
Furukawa, Teruo
Takata, Morimasa
Miyahara, Morihiro
Watanabe, Okitsugu
open access
NATIONAL INSTITUTE OF POLAR RESEARCH, A. Takahashi, Y. Fujii,N. Azuma,H. Motoyama, K.Shinbori, Y. Tanaka, H. Narita,Y. Nakayama,T. Kameda,S. Fujita,T. Furukawa,M. Takata,M. Miyahara, O. Watanabe, Memoirs of National Institute of Polar Research, Special Issue, 56, 2002, 117-125
The second phase of the deep ice core drilling at Dome Fuji, Antarctica is planned to be carried out in three successive summer seasons starting from 2003/2004 with an improved JARE deep ice core drill. On the basis of tests, major improvements were made including extension of the core barrel to 4m, addition of a more powerful chip-collecting pump, addition of a check valve to avoid loss of collected chips while hoisting the drill in borehole liquid, and a more powerful drill motor. This report describes the improvements and results of the tests as of December 2000.
application/pdf
国立極地研究所
2002-03
eng
journal article
VoR
https://kitami-it.repo.nii.ac.jp/records/7191
Memoirs of National Institute of Polar Research, Special Issue
56
117
125
https://kitami-it.repo.nii.ac.jp/record/7191/files/4426.pdf
application/pdf
3.2 MB
2016-11-22