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DISC drill and replicate coring system: a new era in deep ice drilling engineering
Authors: Shturmakov AJ, Lebar DA, Bentley CR
Year: 2014
Keywords: ice coring, ice engineering
Periodical/Journal: Annals of Glaciology
Volume: 55
Number: 68
Page Range: 189-198

The deep ice sheet coring (DISC) drill and replicate coring system (RCS) were designed and manufactured by Ice Coring and Drilling Services/Ice Drilling Design and Operations group of the University of Wisconsin-Madison. The DISC/RCS is an electromechanical system designed to take 122 mm diameter ice cores from the main borehole and 108 mm diameter replicate ice cores to depths of 4000m. Detailed design of the DISC drill began in 2003, and the completed drill was tested in Greenland in 2006. During five consecutive field seasons at West Antarctic Ice Sheet (WAIS) Divide, 3405 m of ice core were drilled, setting the US deep ice drilling record. The RCS, based on the DISC drill, was developed and built in 2010/11, tested in Antarctica during the 2011/12 WAIS Divide field season and tested further in Madison, WI, during summer-fall 2012. During the 2012/13 Antarctic field season, the system produced five azimuth and depth-controlled deviations at four target depth levels. A total of 285m of replicate ice core was recovered in the first coring of its kind. The entire main/ replicate ice core, including ductile, brittle and warm ice, had excellent quality and satisfied the needs of the ice science community.

DOI: 10.3189/2014AoG68A017
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