Document DetailsLightweight 50-Meter Core Drill For Firn and Ice
|Authors:||Rufli H, Stauffer B and Oeschger H|
|Periodical/Journal:||Ice-Core Drilling (ed. J.F. Splettstoesser), University of Nebraska Press, Lincoln, NE|
The increasing interest in ice-core analysis has made it apparent that new drills need to be developed for coring in firn and ice. To close the gap between the range of the SIPRE coring auger and that of the CRREL thermal drill an electromechanical drill has been constructed which will core to 50 m in firn and ice. The drill is suspended from a cable, and consists of a coring system, a driving system and an antitorque system. The drill was tested successfully in Greenland in 1974, where it was possible to drill to 50 m in a few hours.