Earth & Environmental Sciences
cratering
100%
asteroid
80%
impactor
75%
provenance
72%
collision
64%
crater
43%
chondrite
40%
platinum group element
35%
meteorite
31%
Phanerozoic
24%
rate
24%
Moon
22%
melt
22%
Archean
21%
iron meteorite
20%
parent body
18%
material
18%
Eocene
13%
lithology
12%
lunar meteorite
11%
Africa
11%
isotope
11%
micrometeorite
11%
achondrite
11%
family
10%
interplanetary dust
10%
siderophile element
10%
geochemical method
10%
iron
10%
science
9%
impact structure
9%
carbonaceous chondrite
9%
population distribution
9%
constancy
9%
geological time
9%
mass extinction
8%
dinosaur
8%
breccia
8%
solar system
8%
pyroxene
7%
basin
7%
rock
7%
Precambrian
7%
olivine
6%
geochemistry
6%
geology
5%
limestone
5%
mantle
5%
contamination
5%
metal
4%
detection
4%
methodology
4%
gas
3%
particle
3%
distribution
2%