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Ice and Permafrost
4
Snow
4
GEOLOGIC AGE DETERMINATION
3
CONCENTRATION(CHEMISTRY)
2
DRILLING
2
GREENLAND
2
Geochemistry and Mineralogy
2
Geology
2
IMPURITIES
2
(*GLACIERS
1
(*ICE
1
(*STRATIGRAPHY
1
*CHEMICAL ANALYSIS
1
*GREENLAND
1
*GREENLAND)
1
*ICE
1
*LAND ICE
1
*SNOW
1
AEROSOLS
1
AIR POLLUTION
1
ALUMINUM
1
ATMOSPHERIC MOTION
1
AUTUMN
1
BASE LINES
1
CALCIUM
1
CHEMICAL ANALYSIS
1
CLIMATE
1
CORE SAMPLING
1
CORES
1
DEEP DEPTH
1
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