Earth & Environmental Sciences
oil
100%
organic matter
94%
Jurassic
88%
Arctic region
80%
history
80%
hydrocarbon
70%
permafrost
68%
paleotemperature
63%
rock
58%
oil shale
57%
source rock
56%
zoning
53%
thermal maturity
47%
resource
46%
tectonics
44%
heat flow
43%
paleoclimate
41%
Paleozoic
39%
sedimentary basin
38%
sedimentation
36%
hydrocarbon resource
35%
pyrolysis
35%
parameter
32%
dislocation
32%
gas
31%
kerogen
31%
petroleum
31%
coal
30%
asphaltene
29%
catagenesis
29%
zonation
28%
biomarker
27%
steroid
26%
sediment
25%
hydrocarbon generation
24%
well
24%
fold
24%
Pleistocene
23%
temperature
23%
basin
23%
coalification
22%
organic geochemistry
21%
bitumen
21%
thrust
21%
oil field
20%
method
20%
distribution
19%
neotectonics
19%
vitrinite reflectance
19%
regionalization
18%
Physics & Astronomy
Siberia
80%
rocks
72%
kerogen
46%
tectonics
45%
hydrocarbons
44%
sediments
39%
oils
39%
coal
38%
permafrost
34%
Arctic regions
31%
biomarkers
29%
deposits
28%
histories
27%
geochemistry
26%
asphaltenes
24%
horizon
24%
weathering
23%
crude oil
23%
pyrolysis
22%
oil fields
22%
climate
20%
thrust
18%
grade
16%
gases
16%
alkanes
13%
carbon isotopes
12%
resins
11%
geotemperature
10%
carbon
10%
fats
9%
heat transmission
8%
resources
8%
evaluation
7%
glaciers
7%
crusts
6%
sampling
6%
sedimentary rocks
6%
peninsulas
6%
condensates
6%
reflectance
6%
intervals
6%
beads
5%
accumulators
5%
insulation
5%
Engineering & Materials Science
Rocks
82%
Tectonics
76%
Biological materials
69%
Shale oil
51%
Deposits
50%
Hydrocarbons
48%
Sedimentation
38%
Permafrost
37%
Oils
32%
Coal
28%
Geochemistry
28%
Zoning
28%
Pyrites
25%
Sediments
23%
Shale
20%
Lignite
20%
Erosion
19%
Hot Temperature
17%
Temperature
16%
Sampling
11%
Glaciers
10%
Asphaltenes
10%
Chemical analysis
9%
Biomarkers
8%
Raw materials
7%
Organic carbon
7%
Resins
7%
Crude oil
6%
Gases
6%
Drilling
6%
Kerogen
6%
Heat transfer
6%
Thermodynamic properties
6%
Hydraulic fracturing
5%
Biota
5%
Earth (planet)
5%
Arches
5%
