Earth & Environmental Sciences
microfossil
65%
kerogen
64%
transmission electron microscopy
54%
silica
47%
quartz
42%
chert
32%
crystal
27%
silicification
24%
organic matter
19%
matrix
17%
graphitization
13%
distribution
10%
grain boundary
9%
beach
8%
fossil
7%
iron
6%
carbon
5%
analysis
5%
loss
5%
energy
4%
Physics & Astronomy
kerogen
100%
silicon dioxide
45%
quartz crystals
40%
transmission electron microscopy
38%
quartz
30%
crystallites
20%
matrices
19%
Ontario
18%
beaches
16%
fossils
15%
graphitization
15%
Canada
14%
microorganisms
14%
spheroids
14%
crystal growth
11%
energy dissipation
9%
grain boundaries
8%
iron
8%
carbon
7%
Agriculture & Biology
microfossils
98%
quartz
71%
silica
59%
transmission electron microscopy
53%
crystals
35%
organic matter
26%
crystallites
24%
beaches
10%
Ontario
10%
fossils
10%
Canada
8%
iron
7%
microorganisms
6%
carbon
6%
energy
5%
Medicine & Life Sciences
Quartz
82%
Silicon Dioxide
67%
Transmission Electron Microscopy
60%
opoka
23%
Crystallization
11%
Ontario
10%
Carbon
9%
Canada
9%
Iron
8%