Earth & Environmental Sciences
platinum group element
100%
magnetic susceptibility
76%
crater
64%
monsoon
55%
impact structure
54%
Younger Dryas
52%
encyclopedia
51%
impactite
50%
meteorite
46%
Frasnian
45%
Indian Ocean
42%
Cretaceous-Paleogene boundary
42%
Holocene
40%
stalagmite
37%
geochemistry
35%
bivalve
35%
rock
34%
impactor
33%
timescale
32%
isotope
32%
chondrite
31%
melt
30%
river
29%
iron meteorite
28%
intertropical convergence zone
28%
ejecta
27%
shell
27%
siderophile element
26%
Eifelian
25%
basin
25%
Eocene
24%
stable isotope
22%
Bronze Age
22%
Cretaceous
22%
precession
21%
cratering
21%
cave
21%
calibration
20%
provenance
19%
olivine
19%
drilling
19%
carbon isotope
19%
paleoclimate
19%
history
18%
stratigraphy
18%
mass extinction
18%
asteroid
17%
isotopic analysis
17%
salinity
17%
oxygen isotope
17%
material
16%
extinction
16%
Frasnian-Famennian boundary
15%
mineral
15%
avulsion
15%
clay
14%
chondrule
14%
Givetian
14%
sediment
14%
eccentricity
14%
Paleocene
14%
isotopic composition
14%
Deep Sea Drilling Project
14%
rare earth element
14%
emplacement
14%
dolostone
14%
limestone
14%
mass spectrometry
13%
cyclostratigraphy
13%
carbonate platform
13%
ureilite
13%
environmental change
13%
anthropogenic effect
13%
trace element
13%
chemostratigraphy
13%
paleoecology
13%
organic matter
12%
solar activity
12%
plain
12%
water
12%
time series
12%
Barents Sea
12%
quarry
12%
Paleozoic
12%
alluvial fan
12%
carbonate
12%
Archean
12%
metal
12%
hematite
12%
dissolution
12%
petrography
12%
iron
11%
osmium isotope
11%
Physics & Astronomy
impact melts
51%
rocks
30%
spherules
28%
craters
24%
Cretaceous-Tertiary boundary
23%
projectiles
21%
cratering
19%
Iran
18%
platinum
15%
isotope ratios
13%
Belgium
12%
rivers
12%
fans
12%
ureilites
11%
plumage
11%
chondrites
11%
siderophile elements
11%
osmium isotopes
10%
Ghana
10%
petrology
10%
Namibia
9%
chemistry
9%
breccia
8%
climate change
8%
carbon isotopes
8%
habitability
8%
meteorites
8%
asteroid belts
8%
oxygen isotopes
8%
Mexico
7%
Poland
7%
lakes
7%
isotopes
7%
mountains
7%
rhythm
7%
iridium
6%
hematite
6%
irrigation
6%
microorganisms
6%
fragments
6%
drilling
6%
carbonates
6%
China
6%
ejecta
6%
minerals
6%
magnetite
6%
flight
6%
impactors
6%
comets
6%
surface reactions
5%
statistical analysis
5%
dissolving
5%
glass
5%
intervals
5%
spinel
5%
lithology
5%
fallout
5%
planets
5%
greenhouses
5%
signatures
5%