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AGE
3
Calcium cation
3
Chloride anion
3
Drilling/drill rig
GRIP
3
Magnesium cation
Nitrate ion
3
Sampling/drilling ice
3
Sodium cation
3
Sulfate anion
3
Core
2
DEPTH, ice/snow
2
Event label
2
Ion chromatography
2
Antarctica
1
DEPTH
1
DF
1
DRILL
1
Depth, bottom/max
1
Depth, top/min
1
Diameter
1
Dome_Fuji
1
Epoch
1
Greenland
1
Greenland Ice Core Projects GRIP/GISP/NGRIP
1
ISTUK
1
ISTUK electromechanical drill
1
International Polar Year 2007-2008 IPY
1
Number
1
Particle concentration
1
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