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DEPTH
3
GRIP
GRIP/GISP/NGRIP
3
Greenland
Greenland Ice Core Projects
3
ISTUK
3
ISTUK electromechanical drill
3
Sampling/drilling ice
ice/snow
Air content
1
Carbon dioxide
1
Isotope ratio mass spectrometry
1
Methane
1
Nitrogen
1
Oxygen
1
Sediment and debris content
1
gas
1
water
1
δ Deuterium
1
δ18O
1
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