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CARBON 13
54 ENVIRONMENTAL SCIENCES
10
ISOTOPE RATIO
8
CARBON ISOTOPES
7
EVEN-ODD NUCLEI
7
ISOTOPES
7
LIGHT NUCLEI
7
NUCLEI
7
ARCTIC REGIONS
6
CARBON CYCLE
6
ENERGY BUDGETS
6
STABLE ISOTOPES
6
ALASKA
4
AQUATIC ECOSYSTEMS
4
CARBON DIOXIDE
4
COASTAL REGIONS
4
MASS SPECTROSCOPY
4
NATURAL RADIOACTIVITY
4
ORGANIC MATTER
4
TUNDRA
4
37 INORGANIC
3
CARBON 12
3
CARBON 14
3
CARBON COMPOUNDS
3
CARBONIC ACID DERIVATIVES
3
CHALCOGENIDES
3
CRYOSPHERE
3
ECOSYSTEMS
3
ORGANIC
3
ORGANIC COMPOUNDS
3
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