Earth & Environmental Sciences
cordillera
98%
Eocene
79%
stable isotope
77%
muscovite
38%
hydrogen isotope
22%
escarpment
21%
quartzite
19%
meteoric water
19%
sedimentary basin
18%
magmatism
16%
faulting
16%
isotopic composition
15%
North America
14%
hydrogen
14%
isotope
13%
fossil
13%
topography
13%
tectonics
12%
oxygen
11%
basin
9%
river
8%
Physics & Astronomy
isotopes
79%
detachment
58%
muscovite
52%
escarpments
36%
estimates
31%
highlands
31%
British Columbia
30%
quartzite
30%
tectonics
28%
Columbia (Orbiter)
27%
fossils
24%
rivers
23%
hydrogen isotopes
22%
topography
16%
hydrogen
11%
oxygen
10%
water
10%
Chemical Compounds
Stable Isotope
100%
Isotope
26%
Surface
19%
Hydrogen
15%
Dioxygen
14%