Paleo Slide Set: Polar Ice Cores
Core barrel being removed from drill

The drill assembly is lowered into the borehole on a heavy cable. Using electric 
power, the drill extracts a 6 m long section of ice. The core is then carefully 
raised to the surface. The newly-filled core barrel in this photo is gingerly 
being removed from the drill apparatus. Once the barrel is removed from the drill 
apparatus, it is replaced with another core barrel. The drill is then lowered 
into the borehole for another coring run. 

Photo Credits:
Kendrick Taylor 
DRI, University of Nevada-Reno