Earth & Environmental Sciences
organic matter
100%
Jurassic
87%
oil
85%
Arctic region
68%
history
68%
hydrocarbon
61%
permafrost
58%
paleotemperature
54%
rock
52%
oil shale
49%
source rock
48%
catagenesis
45%
zoning
45%
kerogen
42%
thermal maturity
40%
resource
39%
tectonics
37%
heat flow
37%
paleoclimate
35%
Paleozoic
33%
sedimentary basin
32%
sedimentation
30%
hydrocarbon resource
30%
pyrolysis
30%
parameter
28%
sediment
28%
vitrinite reflectance
27%
dislocation
27%
basin
26%
gas
26%
petroleum
26%
coal
25%
asphaltene
25%
well
24%
zonation
24%
biomarker
23%
indicator
23%
steroid
22%
hydrocarbon generation
21%
fold
20%
Pleistocene
20%
temperature
20%
coalification
19%
organic geochemistry
18%
bitumen
18%
thrust
18%
method
17%
oil field
17%
phenanthrene
17%
distribution
16%
Engineering & Materials Science
Biological materials
77%
Rocks
74%
Tectonics
65%
Shale oil
44%
Deposits
42%
Hydrocarbons
41%
Sediments
37%
Sedimentation
32%
Permafrost
32%
Kerogen
28%
Oils
27%
Coal
24%
Geochemistry
24%
Zoning
24%
Pyrites
21%
Shale
17%
Lignite
17%
Chemical analysis
16%
Erosion
16%
Hot Temperature
14%
Temperature
13%
Sampling
9%
Glaciers
9%
Asphaltenes
8%
Biomarkers
7%
Organic solvents
6%
Raw materials
6%
Organic carbon
6%
Resins
6%
Carbonization
6%
Crude oil
5%
Gases
5%
Drilling
5%
Heat transfer
5%
Thermodynamic properties
5%
Physics & Astronomy
Siberia
60%
rocks
48%
hydrocarbons
40%
kerogen
39%
tectonics
38%
sediments
34%
coal
32%
Arctic regions
26%
biomarkers
25%
geochemistry
22%
asphaltenes
21%
oils
21%
horizon
20%
phenanthrene
20%
crude oil
19%
pyrolysis
19%
climate
17%
thrust
15%
grade
14%
histories
12%
deposits
11%
alkanes
11%
carbon isotopes
10%
resins
10%
carbon
8%
reflectance
8%
fats
8%
heat transmission
7%
gases
6%
glaciers
6%
permafrost
5%
aromatic compounds
5%
sampling
5%
sedimentary rocks
5%
peninsulas
5%
condensates
5%
intervals
5%
