EPICA Dronning Maud Land EDML ice core drilling protocol ...

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...

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Bibliographic Details
Main Authors: Wilhelms, Frank, Miller, Heinz, Gerasimoff, Michael D, Drücker, Cord, Frenzel, Andreas, Fritzsche, Diedrich, Grobe, Hannes, Hansen, Steffen Bo, Hilmarsson, Sverrir Æ, Hoffmann, Georg, Hörnby, Kerstin, Jaeschke, Andrea, Jakobsdottir, Steinunn S, Juckschat, Paul, Karsten, Achim, Karsten, Lorenz, Kaufmann, Patrik R, Karlin, Torbjörn, Kohlberg, Eberhard, Kleffel, Guido, Lambrecht, Anja, Lambrecht, Astrid, Lawer, Gunther, Schärmeli, Ivan, Schmitt, Jochen, Sheldon, Simon G, Takata, Morimasa, Trenke, Marcus, Twarloh, Birthe, Valero Delgado, Fernando, Wilhelms-Dick, Dorothee
Format: Dataset
Language:English
Published: PANGAEA 2014
Subjects:
Run
Run Date/Time
Core length
Number
Break strength
Mass
DEPTH, ice/snow
Comment
Pitch, lower limit
Pitch, upper limit
Level
Volume
Density, mass density
Temperature, technical
EPICA drill
EPICA-Campaigns
Kohnen Station
European Project for Ice Coring in Antarctica EPICA
Antarc*
Antarctica
Dronning Maud Land
East Antarctica
EPICA
ice core
Online Access:https://dx.doi.org/10.1594/pangaea.841035
https://doi.pangaea.de/10.1594/PANGAEA.841035
Description
Summary: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. core-break 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 ... : DEPTH, ice/snow [m] = Drilled depth, measured cable length. For offset to core depth refer to reference. ...

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