論文

査読有り
2014年

The EPICA Dronning Maud Land deep drilling operation

ANNALS OF GLACIOLOGY
  • Frank Wilhelms
  • Heinrich Miller
  • Michael D. Gerasimoff
  • Cord Druecker
  • Andreas Frenzel
  • Diedrich Fritzsche
  • Hannes Grobe
  • Steffen Bo Hansen
  • Sverrir A. E. Hilmarsson
  • Georg Hoffmann
  • Kerstin Hornby
  • Andrea Jaeschke
  • Steinunn S. Jakobsdottir
  • Paul Juckschat
  • Achim Karsten
  • Lorenz Karsten
  • Patrik R. Kaufmann
  • Torbjorn Karlin
  • Eberhard Kohlberg
  • Guido Kleffel
  • Anja Lambrecht
  • Astrid Lambrecht
  • Gunther Lawer
  • Ivan Schaermeli
  • Jochen Schmitt
  • Simon G. Sheldon
  • Morimasa Takata
  • Marcus Trenke
  • Birthe Twarloh
  • Fernando Valero-Delgado
  • Dorothee Wilhelms-Dick
  • 全て表示

55
68
開始ページ
355
終了ページ
366
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.3189/2014AoG68A189
出版者・発行元
INT GLACIOL SOC

We report on the EPICA Dronning Maud Land (East Antarctica) deep drilling operation. Starting with the scientific questions that led to the outline of the EPICA project, we introduce the setting of sister drillings at NorthGRIP and EPICA Dome C within the European ice-coring community. The progress of the drilling operation is described within the context of three parallel, deep-drilling operations, the problems that occurred and the solutions we developed. Modified procedures are described, such as the monitoring of penetration rate via cable weight rather than motor torque, and modifications to the system (e.g. closing the openings at the lower end of the outer barrel to reduce the risk of immersing the drill in highly concentrated chip suspension). Parameters of the drilling (e.g. corebreak force, cutter pitch, chips balance, liquid level, core production rate and piece number) are discussed. We also review the operational mode, particularly in the context of achieved core length and piece length, which have to be optimized for drilling efficiency and core quality respectively. We conclude with recommendations addressing the design of the chip-collection openings and strictly limiting the cable-load drop with respect to the load at the start of the run.

リンク情報
DOI
https://doi.org/10.3189/2014AoG68A189
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000351889600041&DestApp=WOS_CPL
ID情報
  • DOI : 10.3189/2014AoG68A189
  • ISSN : 0260-3055
  • eISSN : 1727-5644
  • Web of Science ID : WOS:000351889600041

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