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DEPTH, ice/snow
4
Dome C
3
Drilling/drill rig
3
EDC
3
European Project for Ice Coring in Antarctica EPICA
3
Ice drill
3
global oxygen biosphere productivity
3
Δ17O of O2
3
AGE
2
Antarctic ice core chronology
2
Antarctic ice core chronology AICC2023
2
Antarctica
2
EPICA Dome C ice core
2
Elemental ratios
2
Gas
2
Gas age
2
Ice core
2
Isotope Ratio Mass Spectrometer IRMS, Thermo Scientific, Delta 219 V
2
Isotope ratio
2
Termination
2
Δ17O
2
Antarctic ice core chronology AICC2012
1
Biosphere productivity, maximum
1
Biosphere productivity, minimum
1
Calculated
1
GISP
1
Ice age
1
Ice_core_diverse
1
Sampling/drilling ice
1
calculated, 1 sigma
1
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