Class information for:
Level 1: ORGANIC GEOCHEMISTRY//SOURCE ROCK//THERMAL MATURITY

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
3 4 GEOSCIENCES, MULTIDISCIPLINARY//GEOCHEMISTRY & GEOPHYSICS//METEOROLOGY & ATMOSPHERIC SCIENCES 1953906
118 3       FUEL//ENERGY & FUELS//PYROLYSIS 71180
878 2             ORGANIC GEOCHEMISTRY//BOTRYOCOCCUS BRAUNII//PETR EXPLORAT DEV 11618
148 1                   ORGANIC GEOCHEMISTRY//SOURCE ROCK//THERMAL MATURITY 4181

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ORGANIC GEOCHEMISTRY journal 2349733 27% 28% 1132
2 SOURCE ROCK authKW 480781 4% 36% 179
3 THERMAL MATURITY authKW 380637 2% 51% 99
4 VITRINITE REFLECTANCE authKW 230326 2% 31% 100
5 OIL SOURCE CORRELATION authKW 226199 1% 73% 41
6 PETR EXPLORAT DEV address 205427 4% 16% 168
7 JOURNAL OF PETROLEUM GEOLOGY journal 185763 3% 17% 142
8 KEROGEN authKW 178431 2% 24% 100
9 MARINE AND PETROLEUM GEOLOGY journal 148730 6% 8% 240
10 HYDROUS PYROLYSIS authKW 148192 1% 46% 43

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Geochemistry & Geophysics 86825 40% 1% 1667
2 Engineering, Petroleum 73820 13% 2% 563
3 Geosciences, Multidisciplinary 37438 35% 0% 1464
4 Energy & Fuels 28280 27% 0% 1135
5 Engineering, Chemical 2545 12% 0% 483
6 Geology 879 2% 0% 92
7 Chemistry, Analytical 83 4% 0% 148
8 Spectroscopy 54 2% 0% 70
9 Paleontology 17 0% 0% 19
10 Multidisciplinary Sciences 7 1% 0% 21

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PETR EXPLORAT DEV 205427 4% 16% 168
2 PETR ORGAN GEOCHEM 92301 1% 58% 21
3 STATE PETR OURCES PROSPECTING 90619 3% 11% 105
4 STATE ORGAN GEOCHEM 67478 3% 7% 134
5 PETR GEOCHEM PROGRAM 60290 0% 100% 8
6 GUANGZHOU GEOCHEM 49289 4% 4% 179
7 GEOL GEOCHEM PETR COAL 41156 1% 14% 38
8 ORGAN GEOCHEM ENVIRONM SCI 41027 0% 78% 7
9 EXPT TESTING 40688 0% 60% 9
10 LANZHOU GEOL 36440 1% 20% 24

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ORGANIC GEOCHEMISTRY 2349733 27% 28% 1132
2 JOURNAL OF PETROLEUM GEOLOGY 185763 3% 17% 142
3 MARINE AND PETROLEUM GEOLOGY 148730 6% 8% 240
4 INTERNATIONAL JOURNAL OF COAL GEOLOGY 131760 5% 8% 211
5 AAPG BULLETIN-AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS 113215 3% 11% 131
6 AAPG BULLETIN 77268 3% 7% 142
7 BULLETIN OF CANADIAN PETROLEUM GEOLOGY 34607 1% 9% 53
8 ENERGY EXPLORATION & EXPLOITATION 22969 1% 7% 45
9 GEOCHIMICA ET COSMOCHIMICA ACTA 17535 4% 1% 176
10 SCIENCE IN CHINA SERIES D-EARTH SCIENCES 14767 2% 3% 65

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 SOURCE ROCK 480781 4% 36% 179 Search SOURCE+ROCK Search SOURCE+ROCK
2 THERMAL MATURITY 380637 2% 51% 99 Search THERMAL+MATURITY Search THERMAL+MATURITY
3 VITRINITE REFLECTANCE 230326 2% 31% 100 Search VITRINITE+REFLECTANCE Search VITRINITE+REFLECTANCE
4 OIL SOURCE CORRELATION 226199 1% 73% 41 Search OIL+SOURCE+CORRELATION Search OIL+SOURCE+CORRELATION
5 KEROGEN 178431 2% 24% 100 Search KEROGEN Search KEROGEN
6 HYDROUS PYROLYSIS 148192 1% 46% 43 Search HYDROUS+PYROLYSIS Search HYDROUS+PYROLYSIS
7 RESERVOIR GEOCHEMISTRY 140853 1% 69% 27 Search RESERVOIR+GEOCHEMISTRY Search RESERVOIR+GEOCHEMISTRY
8 STERANES 130177 1% 40% 43 Search STERANES Search STERANES
9 HYDROCARBON GENERATION 126635 1% 41% 41 Search HYDROCARBON+GENERATION Search HYDROCARBON+GENERATION
10 PRIMARY MIGRATION 116268 0% 86% 18 Search PRIMARY+MIGRATION Search PRIMARY+MIGRATION

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 11496 TARIM BASIN//THERMOCHEMICAL SULFATE REDUCTION//TARIM OILFIELD CO
2 17877 HIGHLY BRANCHED ISOPRENOIDS//IP25//MARINE BIOGEOCHEM TOXICOL
3 32259 FISH COPROLITES//ABT MESSELFOR//MESSEL
4 20176 HOPANOIDS//BACTERIOHOPANEPOLYOLS//BACTERIOHOPANETETROL
5 16427 IGNEOUS INTRUSION//NATURAL COKE//INTERNATIONAL JOURNAL OF COAL GEOLOGY
6 24501 BARKINITE//ALIPHATIC CHAIN LENGTH//CICASI
7 13093 OVERPRESSURE//DISEQUILIBRIUM COMPACTION//ABNORMAL PRESSURE
8 27620 GEOKHIMIYA//OIL GAS PROBLEMS//ANOMALOUS WELLS
9 11064 N ALKANES//ORGANIC GEOCHEMISTRY//LEAF WAX
10 21671 HYDROTHERMAL PETROLEUM//EARTH OURCES FUEL GEOSCI UNIT//MODERN RIFT ZONE

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