Earth & Environmental Sciences
isotope
81%
fractionation
54%
seawater
40%
Archean
35%
silicon
34%
Turonian
32%
gel
24%
potassium
23%
rare earth element
22%
ocean circulation
21%
sedimentary rock
20%
iron
19%
Precambrian
19%
stable isotope
19%
ocean
16%
cosmochemistry
15%
mid-ocean ridge
14%
hydrothermal vent
13%
oxygenation
12%
upper ocean
12%
banded iron formation
12%
neodymium
12%
thorium
10%
nutrient availability
10%
deconvolution
10%
nutrient
9%
advection
9%
ablation
9%
labeling
9%
water mass
9%
water column
8%
maize
8%
fertilizer
8%
seafloor
7%
kinetics
7%
replacement
7%
sulfide
7%
carbon cycle
7%
anoxia
7%
laser
7%
particle size
6%
chert
6%
neodymium isotope
6%
cooling
6%
weathering
6%
oxidation
6%
sea
6%
Chemical Compounds
Isotope
100%
Fractionation
64%
Laser Ablation
31%
Stable Isotope
20%
Gel
18%
Hydrothermal Vent
18%
Lanthanoid Atom
17%
Thorium
15%
Inductively Coupled Plasm Mass Spectrometry (ICPMS)
15%
Ablation
14%
Geochemistry
14%
Amorphous Silicon
12%
Fertilizer
11%
Radionuclides
10%
Mineral
9%
Inductively Coupled Plasma
9%
Collision
9%
Particle Size Distribution
9%
Cooling
8%
Horner Reaction
8%
Mass Spectrometry
7%
Error
7%
Soil
6%
Glass
6%
Time
6%
Ambient Reaction Temperature
6%
Purification
5%
Magnetite
5%
Physics & Astronomy
isotopes
32%
potassium
27%
fractionation
24%
cosmochemistry
17%
mid-ocean ridges
17%
geochemistry
15%
fertilizers
14%
corn
13%
vents
13%
oceans
13%
shelves
11%
soils
9%
marking
9%
cycles
8%
hydrothermal systems
8%
recovery
7%
volcanology
6%
basalt
6%
volcanic eruptions
5%
fluids
5%
weathering
5%