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Calcium
4
Chloride
4
Magnesium
4
Nitrate
4
Potassium
4
Sulfate
4
AGE
2
Age, maximum/old
2
Age, minimum/young
2
Aluminium
2
Ammonium
2
Bicarbonate
2
DATE/TIME
2
DEPTH, ice/snow
2
Day of the year
2
Depth, bottom/max
2
Depth, top/min
2
Drilling/drill rig
2
Event label
2
Fluoride
2
GISP
2
Glacier discharge
2
Greenland Ice Core Projects GRIP/GISP/NGRIP
2
Ion chromatography
2
Original value
2
Sampling/drilling ice
2
Silicon
2
Sodium
2
Sodium ion
2
Suspended particulate matter
2
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