1993
DOI: 10.1017/s0032247400018556
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Core drilling by electromechanical drill

Abstract: IntroductionCore drilling is considered to be the most effective method of studying glaciers and sub-glacial rock. Thermal drills suspended on cables are very simple in construction and enable the drilling of deep bore-holes in firn and ice (Kudryashov and others 1991a). However, mechanical dri 11 ing is characterized by lower energy consumption and a higher rate of penetration (Ueda and Garfield 1970; Gundestrup and others 1984). Moreover, drilling of subglacial rock and ice containing mineral inclusions bec… Show more

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Cited by 4 publications
(5 citation statements)
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“…The drill became stuck on the first run, 1 m above the bottom. The operation was left for a year with tension on the cable (Vasil’yev and others, 1993; Kudryashov and others, 1994).…”
Section: Drilling Operations In Hole No 4 (1982–89)mentioning
confidence: 99%
“…The drill became stuck on the first run, 1 m above the bottom. The operation was left for a year with tension on the cable (Vasil’yev and others, 1993; Kudryashov and others, 1994).…”
Section: Drilling Operations In Hole No 4 (1982–89)mentioning
confidence: 99%
“…The drill became stuck on the first run, 1 m above the bottom. The operation was left for a year with tension on the cable (Kudryashov et al 1994;Vasil'yev et. al.…”
Section: -89 Thirty-fourth Sae Vostokmentioning
confidence: 99%
“…31) an electro-mechanical drill designed by the LMI was begun in the winter-spring campaign of 1984 (Chistyakov et al 1988;Bobin et al 1988;Kudryashov et al 1994;Vasil'yev et al 1993). Cutting head OD/ID dimensions were 112-116/87 mm.…”
mentioning
confidence: 99%
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