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AGE
3
Age, 14C AMS
CHN elemental analyzer Flash 2000 Model
3
Calcium carbonate
3
Calculated by multiplying the biogenic silica concentration by 2.4 analyzed using the wet alkaline extraction method DeMaster, 1981
3
Calculated by multiplying the total inorganic carbon content measured UIC CO2 Coulometer CM5014 Model by 8.333
3
Calculated by subtracting total inorganic carbon from total carbon
3
Carbon, organic, total
3
Carbon/Nitrogen ratio
Continental Margin
3
DEPTH, sediment/rock
3
Gravity corer
3
Ice Sheet
3
Nitrogen, total
3
Opal, biogenic silica
3
PNRA_XXIX
3
Ross Sea
3
Sea ice
3
Sediment core
3
Thermo Fisher Scientific FLASH 2000 isotope ratio mass spectrometer elemental analyzer
3
Total organic carbon divided by total nitrogen
3
paleoproductivity
3
δ13C
3
δ15N
3
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