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AGE
2
Calcium cation
2
Chloride anion
2
GRIP
2
Greenland
ISTUK
2
ISTUK electromechanical drill
2
Magnesium cation
2
Nitrate ion
2
Sampling/drilling ice
2
Sodium cation
Sulfate anion
2
ice/snow
Antarctica
1
Core
1
DEPTH
1
DF
1
DRILL
1
Depth
1
Diameter
1
Dome_Fuji
1
Drilling/drill rig
1
Epoch
1
Event label
1
GRIP/GISP/NGRIP
1
Greenland Ice Core Projects
1
IPY
1
International Polar Year (2007-2008)
1
Ion chromatography
1
Number
1
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