Physics & Astronomy
gypsum
84%
mars
71%
fossils
61%
deposits
40%
Peru
25%
habitats
21%
Mexico
21%
sediments
18%
microorganisms
18%
Italy
17%
organisms
16%
sulfates
16%
sulfur
14%
occurrences
12%
orbitals
10%
Agriculture & Biology
microfossils
100%
gypsum
72%
fossils
46%
lacustrine sediments
28%
biocenosis
21%
Peru
15%
sediments
13%
sulfates
12%
sulfur
12%
Mexico
12%
Italy
12%
microorganisms
9%
habitats
8%
organisms
8%
Earth & Environmental Sciences
microfossil
67%
gypsum
57%
Mars
55%
fossil
33%
lacustrine deposit
14%
Permian
13%
Miocene
11%
microorganism
11%
sulfur
11%
sulfate
10%
organism
10%
habitat
9%
in situ
9%
sediment
7%
Medicine & Life Sciences
Mars
90%
Calcium Sulfate
84%
Peru
19%
Sulfur
17%
Ecosystem
16%
Sulfates
16%
Mexico
16%
Italy
14%