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ICE
2
Ice and Permafrost
POLAR REGIONS
Snow
2
(*SNOW
1
*DRILLING
1
ANTARCTIC REGIONS
1
ANTARCTIC REGIONS)
1
ATMOSPHERIC TEMPERATURE
1
BYRD STATION
1
COLD WEATHER TESTS
1
DENSITY
1
DRILLING
1
DRILLING MACHINES
1
FREEZING
1
GEOLOGICAL SURVEYS
1
GLACIERS
1
GREENLAND
1
Geochemistry and Mineralogy
1
Geology
1
ICE ISLANDS
1
PERIODIC VARIATIONS
1
ROTARY DRILLING
1
STRATIGRAPHY
1
SURFACE TEMPERATURE
1
THICKNESS
1
VOLUME
1
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