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DRILL
Drilling/drill rig
13
GRIP/GISP/NGRIP
11
Greenland Ice Core Projects
11
Sampling/drilling ice
11
water
9
δ18O
9
Age
7
GRIP
7
Greenland
7
GISP
6
GISP2
4
DEPTH
3
GISP2-B
3
AGE
2
Event label
2
GRIP891
2
GRIP892
2
GRIP893
2
GRIP912
2
GRIP913
2
ISTUK
2
ISTUK electromechanical drill
2
Joides Resolution
2
ice/snow
2
146-893A
1
155-933A
1
155-936A
1
155-941A
1
165-1002D
1
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