Improvements to the JARE deep ice core drill

Title Improvements to the JARE deep ice core drill
Publication Type
Journal Article
Year
2002
Author(s) Akiyoshi Takahashi , Yoshiyuki Fujii, Nobuhiko Azuma, Hideaki Motoyama, Kunio Shinbori, Yoichi Tanaka, Hideki Narita, Yoshiki Nakayama, Takao Kameda, Shuji Fujita, Teruo Furukawa, Morimasa Takata, Morihiro Miyahara, Okitsugu Watanabe
Journal/ Publication
Memoirs of National Institute of Polar Research. Special issue 56
Pagination
117-125
ISSN
03860744
Abstract

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.

File
URL
Special Collections International Workshop on Ice Drilling Technology Series, 5th International Workshop on Ice Drilling Technology
Categories Deep Drilling
Equipment JARE drills
Citation Akiyoshi Takahashi , Yoshiyuki Fujii, Nobuhiko Azuma, Hideaki Motoyama, Kunio Shinbori, Yoichi Tanaka, Hideki Narita, Yoshiki Nakayama, Takao Kameda, Shuji Fujita, Teruo Furukawa, Morimasa Takata, Morihiro Miyahara, Okitsugu Watanabe ( 2002 ) Improvements to the JARE deep ice core drill. Memoirs of National Institute of Polar Research. Special issue 56 , 117-125 .
Lead Author
Akiyoshi Takahashi