Improvements to the JARE deep ice core drill

• Main Authors: 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
• Language: English
• Published: 国立極地研究所 2002
• Subjects: Dome Fuji; Antarc*; Antarctica; ice core; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://kitami-it.repo.nii.ac.jp/record/7191/files/4426.pdf

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 journal article