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AGE
2
Depth
GRIP
GRIP/GISP/NGRIP
2
Greenland
Greenland Ice Core Projects
2
ISTUK
2
ISTUK electromechanical drill
2
Sampling/drilling ice
bottom/max
2
ice/snow
top/min
2
Accumulation of snow/ice per year
1
Calcium cation
1
Chloride anion
1
Diameter
1
Epoch
1
IPY
1
International Polar Year (2007-2008)
1
Length/duration of interval
1
Magnesium cation
1
Nitrate ion
1
Number
1
Particle concentration
1
Sodium cation
1
Standard deviation
1
Sulfate anion
1
Thickness
1
comment
1
maximum/old
1
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