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Improvements to the JARE deep ice core drill
Authors: Takahashi A, Fujii Y, Azuma N, Motoyama H, Shinbori K, Tanaka Y, Narita H, Nakayama Y, Kameda T, Fujita S, Furukawa T, Takata M, Miyahara M and Watanabe O
Year: 2002
Periodical/Journal: Memoirs of National Institute of Polar Research, Special Issue No. 56
Page Range: 117-125
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.
ISSN/ISBN: 0386-0744
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