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Ammonium
Calcium
9
Conductivity, electrolytic
Conductometry
9
Continuously operated spectrometric
9
DEPTH, ice/snow
EPICA_DML3
9
European Project for Ice Coring in Antarctica EPICA
Hydrogen peroxide
9
Ice drill
9
Neumayer Station WMO89002
Sodium ion
9
AGE
3
Age
3
Age model, layer counting
2
Calculation based on conductivity
2
Nitrate
1
see references
1
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