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