Class information for:
Level 1: ORGANIC GEOCHEMISTRY//VITRINITE REFLECTANCE//THERMAL MATURITY

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
2173 2333 37.5 39%


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
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
0 3       GEOCHEMISTRY & GEOPHYSICS//GEOSCIENCES, MULTIDISCIPLINARY//GEOLOGY 255672
498 2             ORGANIC GEOCHEMISTRY//PETR EXPLORAT DEV//MARINE AND PETROLEUM GEOLOGY 15363
2173 1                   ORGANIC GEOCHEMISTRY//VITRINITE REFLECTANCE//THERMAL MATURITY 2333

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ORGANIC GEOCHEMISTRY journal 781226 21% 12% 491
2 VITRINITE REFLECTANCE authKW 356924 4% 29% 93
3 THERMAL MATURITY authKW 227921 2% 31% 56
4 SOURCE ROCK authKW 214567 4% 19% 88
5 HYDROCARBON GENERATION authKW 180920 2% 37% 37
6 PETR EXPLORAT DEV address 176818 5% 12% 113
7 KEROGEN authKW 167805 3% 18% 72
8 VITRINITE authKW 164394 1% 37% 34
9 INTERNATIONAL JOURNAL OF COAL GEOLOGY journal 152556 7% 7% 169
10 CONFINED PYROLYSIS authKW 147439 1% 87% 13

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Engineering, Petroleum 42335 14% 1% 318
2 Geochemistry & Geophysics 35108 34% 0% 798
3 Geosciences, Multidisciplinary 28731 41% 0% 953
4 Energy & Fuels 24348 33% 0% 767
5 Engineering, Chemical 1951 13% 0% 308
6 Geology 985 3% 0% 71
7 Spectroscopy 58 2% 0% 48
8 Multidisciplinary Sciences 32 1% 0% 21
9 Chemistry, Analytical 27 3% 0% 72
10 Paleontology 23 1% 0% 14

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PETR EXPLORAT DEV 176818 5% 12% 113
2 STATE ORGAN GEOCHEM 54939 4% 5% 89
3 ENERGY MINERAL OURCES GRP EMR 40077 1% 26% 12
4 HIGH INNOVAT BUSINESS 39260 0% 100% 3
5 GUANGZHOU GEOCHEM 37631 5% 3% 115
6 GEOL GEOCHEM PETR COAL 37511 1% 11% 27
7 LANGFANG BRANCH 37163 1% 16% 18
8 ERDOL ORGAN GEOCHEM ICG4 34895 0% 67% 4
9 PETR ENERGY ENVIRONM 34895 0% 67% 4
10 PETR GEOL CENT 34895 0% 67% 4

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ORGANIC GEOCHEMISTRY 781226 21% 12% 491
2 INTERNATIONAL JOURNAL OF COAL GEOLOGY 152556 7% 7% 169
3 AAPG BULLETIN-AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS 111643 4% 9% 99
4 JOURNAL OF PETROLEUM GEOLOGY 99011 3% 10% 78
5 MARINE AND PETROLEUM GEOLOGY 67145 5% 4% 120
6 AAPG BULLETIN 38661 3% 4% 75
7 ENERGY EXPLORATION & EXPLOITATION 29782 2% 6% 38
8 SCIENCE IN CHINA SERIES D-EARTH SCIENCES 16450 2% 2% 52
9 PETROLEUM EXPLORATION AND DEVELOPMENT 13349 1% 5% 22
10 BULLETIN OF CANADIAN PETROLEUM GEOLOGY 12331 1% 4% 24

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 VITRINITE REFLECTANCE 356924 4% 29% 93 Search VITRINITE+REFLECTANCE Search VITRINITE+REFLECTANCE
2 THERMAL MATURITY 227921 2% 31% 56 Search THERMAL+MATURITY Search THERMAL+MATURITY
3 SOURCE ROCK 214567 4% 19% 88 Search SOURCE+ROCK Search SOURCE+ROCK
4 HYDROCARBON GENERATION 180920 2% 37% 37 Search HYDROCARBON+GENERATION Search HYDROCARBON+GENERATION
5 KEROGEN 167805 3% 18% 72 Search KEROGEN Search KEROGEN
6 VITRINITE 164394 1% 37% 34 Search VITRINITE Search VITRINITE
7 CONFINED PYROLYSIS 147439 1% 87% 13 Search CONFINED+PYROLYSIS Search CONFINED+PYROLYSIS
8 HYDROUS PYROLYSIS 147219 1% 35% 32 Search HYDROUS+PYROLYSIS Search HYDROUS+PYROLYSIS
9 PRIMARY MIGRATION 147217 1% 75% 15 Search PRIMARY+MIGRATION Search PRIMARY+MIGRATION
10 LIGHT HYDROCARBON 128841 1% 62% 16 Search LIGHT+HYDROCARBON Search LIGHT+HYDROCARBON

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.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 WILKINS, RWT , GEORGE, SC , (2002) COAL AS A SOURCE ROCK FOR OIL: A REVIEW.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 50. ISSUE 1-4. P. 317-361 122 75% 72
2 TIAN, H , XIAO, XM , WILKINS, RWT , TANG, YC , (2012) AN EXPERIMENTAL COMPARISON OF GAS GENERATION FROM THREE OIL FRACTIONS: IMPLICATIONS FOR THE CHEMICAL AND STABLE CARBON ISOTOPIC SIGNATURES OF OIL CRACKING GAS.ORGANIC GEOCHEMISTRY. VOL. 46. ISSUE . P. 96 -112 66 83% 11
3 CHEN, ZH , MA, ZJ , ZHA, M , SHA, XY , ZHANG, SC , BAO, YS , (2014) THE EFFECTS OF HIGH PRESSURE ON OIL-TO-GAS CRACKING DURING LABORATORY SIMULATION EXPERIMENTS.JOURNAL OF PETROLEUM GEOLOGY. VOL. 37. ISSUE 2. P. 143 -162 60 86% 4
4 PETERSEN, HI , (2006) THE PETROLEUM GENERATION POTENTIAL AND EFFECTIVE OIL WINDOW OF HUMIC COALS RELATED TO COAL COMPOSITION AND AGE.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 67. ISSUE 4. P. 221 -248 70 83% 48
5 STAINFORTH, JG , (2009) PRACTICAL KINETIC MODELING OF PETROLEUM GENERATION AND EXPULSION.MARINE AND PETROLEUM GEOLOGY. VOL. 26. ISSUE 4. P. 552 -572 65 80% 31
6 SUAREZ-RUIZ, I , FLORES, D , MENDONCA, JG , HACKLEY, PC , (2012) REVIEW AND UPDATE OF THE APPLICATIONS OF ORGANIC PETROLOGY: PART 1, GEOLOGICAL APPLICATIONS.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 99. ISSUE . P. 54 -112 138 31% 47
7 XIANG, BL , LI, ET , GAO, XW , WANG, M , WANG, Y , XU, H , HUANG, P , YU, S , LIU, JZ , ZOU, YR , ET AL (2016) PETROLEUM GENERATION KINETICS FOR PERMIAN LACUSTRINE SOURCE ROCKS IN THE JUNGGAR BASIN, NW CHINA.ORGANIC GEOCHEMISTRY. VOL. 98. ISSUE . P. 1 -17 58 79% 0
8 XU, H , DING, XH , LUO, ZJ , LIU, CM , LI, ET , HUANG, P , YU, S , LIU, JZ , ZOU, YR , PAN, CC , (2017) CONFINED PYROLYSIS FOR SIMULATING HYDROCARBON GENERATION FROM JURASSIC COALY SOURCE ROCKS IN THE JUNGGAR BASIN, NORTHWEST CHINA.ENERGY & FUELS. VOL. 31. ISSUE 1. P. 73 -94 55 79% 0
9 UGUNA, CN , CARR, AD , SNAPE, CE , MEREDITH, W , (2016) RETARDATION OF OIL CRACKING TO GAS AND PRESSURE INDUCED COMBINATION REACTIONS TO ACCOUNT FOR VISCOUS OIL IN DEEP PETROLEUM BASINS: EVIDENCE FROM OIL AND N-HEXADECANE PYROLYSIS AT WATER PRESSURES UP TO 900 BAR.ORGANIC GEOCHEMISTRY. VOL. 97. ISSUE . P. 61 -73 51 76% 1
10 PETERS, KE , BURNHAM, AK , WALTERS, CC , (2015) PETROLEUM GENERATION KINETICS: SINGLE VERSUS MULTIPLE HEATING-RAMP OPEN-SYSTEM PYROLYSIS.AAPG BULLETIN. VOL. 99. ISSUE 4. P. 591 -616 44 83% 8

Classes with closest relation at Level 1


Rank Class id link
1 10940 TARIM BASIN//PETR EXPLORAT DEV//THERMOCHEMICAL SULFATE REDUCTION
2 1196 ORGANIC GEOCHEMISTRY//OIL SOURCE CORRELATION//STERANES
3 14717 INTERNATIONAL JOURNAL OF COAL GEOLOGY//COAL PETROLOGY//MACERALS
4 17252 IGNEOUS INTRUSION//NATURAL COKE//INTERNATIONAL JOURNAL OF COAL GEOLOGY
5 13743 OVERPRESSURE//DISEQUILIBRIUM COMPACTION//ABNORMAL PRESSURE
6 7534 SHALE GAS//LONGMAXI FORMATION//TIGHT OIL
7 25894 INITIAL REPORTS OF THE DEEP SEA DRILLING PROJECT//BAS RHIN BOUXWILLER BREMMELBACH//BIOFACIES PALYNOFACIES
8 19820 GEOARABIA//JOURNAL OF PETROLEUM GEOLOGY//SARVAK FORMATION
9 7053 OIL SHALE//OIL SHALE ASH//SHALE OIL
10 29100 BOHAI BAY BASIN//XIHU DEPRESSION//EAST CHINA SEA SHELF BASIN

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