Class information for:
Level 1: ORGANIC GEOCHEMISTRY//OIL SOURCE CORRELATION//STERANES

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
1196 2792 39.5 46%


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
1196 1                   ORGANIC GEOCHEMISTRY//OIL SOURCE CORRELATION//STERANES 2792

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 2213812 32% 22% 904
2 OIL SOURCE CORRELATION authKW 198247 1% 58% 31
3 STERANES authKW 176696 1% 39% 41
4 SOURCE ROCK authKW 171204 3% 18% 86
5 TRICYCLIC TERPANES authKW 153089 1% 100% 14
6 PETR ENVIRONM ORGAN GEOCHEM address 112850 1% 61% 17
7 THERMAL MATURITY authKW 107098 2% 23% 42
8 CRUDE OILS authKW 103502 1% 29% 33
9 IMMATURE OIL authKW 101775 0% 85% 11
10 HOPANES authKW 101416 1% 31% 30

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 Geochemistry & Geophysics 85311 48% 1% 1352
2 Engineering, Petroleum 36856 12% 1% 325
3 Energy & Fuels 9809 19% 0% 544
4 Geosciences, Multidisciplinary 9686 22% 0% 622
5 Engineering, Chemical 1566 11% 0% 310
6 Chemistry, Organic 447 7% 0% 205
7 Geology 175 1% 0% 36
8 Paleontology 87 1% 0% 26
9 Chemistry, Analytical 70 4% 0% 105
10 Geography, Physical 16 1% 0% 19

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 ENVIRONM ORGAN GEOCHEM 112850 1% 61% 17
2 MARINE BIOGEOCHEM TOXICOL 98336 2% 19% 48
3 WA ORGAN ISOTOPE GEOCHEM 96870 1% 37% 24
4 AUSTRALIAN PETR CRC 72893 0% 67% 10
5 STATE PETR OURCES PROSPECTING 70451 3% 9% 71
6 PETR ORGAN GEOCHEM 68326 1% 42% 15
7 ORGAN GEOCHEM ENVIRONM SCI 59531 0% 78% 7
8 OIL GAS OURCE EXPLORAT TECHNOL 54675 0% 100% 5
9 GEOCHIM ORGAN 53563 1% 35% 14
10 PETR ERVOIR GRP 40250 0% 41% 9

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 2213812 32% 22% 904
2 PETROLEUM CHEMISTRY 63425 4% 6% 104
3 JOURNAL OF PETROLEUM GEOLOGY 55660 2% 8% 64
4 MARINE AND PETROLEUM GEOLOGY 34363 3% 3% 94
5 GEOCHIMICA ET COSMOCHIMICA ACTA 30989 7% 2% 191
6 AAPG BULLETIN 20635 2% 3% 60
7 AAPG BULLETIN-AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS 17545 2% 4% 43
8 INTERNATIONAL JOURNAL OF COAL GEOLOGY 16523 2% 2% 61
9 PETROLEUM SCIENCE AND TECHNOLOGY 9103 2% 2% 50
10 BULLETIN OF CANADIAN PETROLEUM GEOLOGY 7144 1% 3% 20

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 OIL SOURCE CORRELATION 198247 1% 58% 31 Search OIL+SOURCE+CORRELATION Search OIL+SOURCE+CORRELATION
2 STERANES 176696 1% 39% 41 Search STERANES Search STERANES
3 SOURCE ROCK 171204 3% 18% 86 Search SOURCE+ROCK Search SOURCE+ROCK
4 TRICYCLIC TERPANES 153089 1% 100% 14 Search TRICYCLIC+TERPANES Search TRICYCLIC+TERPANES
5 THERMAL MATURITY 107098 2% 23% 42 Search THERMAL+MATURITY Search THERMAL+MATURITY
6 CRUDE OILS 103502 1% 29% 33 Search CRUDE+OILS Search CRUDE+OILS
7 IMMATURE OIL 101775 0% 85% 11 Search IMMATURE+OIL Search IMMATURE+OIL
8 HOPANES 101416 1% 31% 30 Search HOPANES Search HOPANES
9 25 NORHOPANES 99406 0% 91% 10 Search 25+NORHOPANES Search 25+NORHOPANES
10 ARYL ISOPRENOIDS 92618 0% 71% 12 Search ARYL+ISOPRENOIDS Search ARYL+ISOPRENOIDS

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 WANG, GL , WANG, TG , SIMONEIT, BRT , ZHANG, LY , ZHANG, XJ , (2010) SULFUR RICH PETROLEUM DERIVED FROM LACUSTRINE CARBONATE SOURCE ROCKS IN BOHAI BAY BASIN, EAST CHINA.ORGANIC GEOCHEMISTRY. VOL. 41. ISSUE 4. P. 340 -354 50 91% 9
2 CHENG, X , HOU, DJ , XU, CG , WANG, FL , (2016) BIODEGRADATION OF TRICYCLIC TERPANES IN CRUDE OILS FROM THE BOHAI BAY BASIN.ORGANIC GEOCHEMISTRY. VOL. 101. ISSUE . P. 11 -21 42 86% 0
3 ARAUJO, BQ , AZEVEDO, DD , (2016) UNCOMMON STERANES IN BRAZILIAN MARGINAL CRUDE OILS: DINOFLAGELLATE MOLECULAR FOSSILS IN THE SERGIPE-ALAGOAS BASIN, BRAZIL.ORGANIC GEOCHEMISTRY. VOL. 99. ISSUE . P. 38 -52 49 68% 0
4 WU, LL , GENG, AS , (2016) DIFFERENCES IN THE THERMAL EVOLUTION OF HOPANES AND STERANES IN FREE AND BOUND FRACTIONS.ORGANIC GEOCHEMISTRY. VOL. 101. ISSUE . P. 38 -48 42 79% 0
5 LI, MJ , WANG, TG , SHI, SB , ZHU, L , FANG, RH , (2014) OIL MATURITY ASSESSMENT USING MATURITY INDICATORS BASED ON METHYLATED DIBENZOTHIOPHENES.PETROLEUM SCIENCE. VOL. 11. ISSUE 2. P. 234 -246 39 83% 3
6 LI, NX , HUANG, HP , JIANG, WL , WU, T , SUN, JJ , (2015) BIODEGRADATION OF 25-NORHOPANES IN A LIAOHE BASIN (NE CHINA) OIL RESERVOIR.ORGANIC GEOCHEMISTRY. VOL. 78. ISSUE . P. 33 -43 31 94% 3
7 SUN, X , ZHANG, TW , SUN, YG , MILLIKEN, KL , SUN, DY , (2016) GEOCHEMICAL EVIDENCE OF ORGANIC MATTER SOURCE INPUT AND DEPOSITIONAL ENVIRONMENTS IN THE LOWER AND UPPER EAGLE FORD FORMATION, SOUTH TEXAS.ORGANIC GEOCHEMISTRY. VOL. 98. ISSUE . P. 66 -81 42 71% 0
8 NYTOFT, HP , BOJESEN-KOEFOED, JA , CHRISTIANSEN, FG , FOWLER, MG , (2002) OLEANANE OR LUPANE? REAPPRAISAL OF THE PRESENCE OF OLEANANE IN CRETACEOUS-TERTIARY OILS AND SEDIMENTS.ORGANIC GEOCHEMISTRY. VOL. 33. ISSUE 11. P. 1225-1240 48 81% 43
9 KOOPMANS, MP , RIJPSTRA, WIC , DE LEEUW, JW , LEWAN, MD , DAMSTE, JSS , (1998) ARTIFICIAL MATURATION OF AN IMMATURE SULFUR AND ORGANIC MATTER RICH LIMESTONE FROM THE GHAREB FORMATION, JORDAN.ORGANIC GEOCHEMISTRY. VOL. 28. ISSUE 7-8. P. 503 -521 46 98% 20
10 KOOPMANS, MP , KOSTER, J , VANKAAMPETERS, HME , KENIG, F , SCHOUTEN, S , HARTGERS, WA , DELEEUW, JW , DAMSTE, JSS , (1996) DIAGENETIC AND CATAGENETIC PRODUCTS OF ISORENIERATENE: MOLECULAR INDICATORS FOR PHOTIC ZONE ANOXIA.GEOCHIMICA ET COSMOCHIMICA ACTA. VOL. 60. ISSUE 22. P. 4467 -4496 52 78% 146

Classes with closest relation at Level 1


Rank Class id link
1 2173 ORGANIC GEOCHEMISTRY//VITRINITE REFLECTANCE//THERMAL MATURITY
2 10940 TARIM BASIN//PETR EXPLORAT DEV//THERMOCHEMICAL SULFATE REDUCTION
3 24455 HOPANOIDS//BACTERIOHOPANEPOLYOLS//BACTERIOHOPANETETROL
4 20995 BOTRYOCOCCUS BRAUNII//BOTRYOCOCCENE//ALGAENAN
5 10846 N ALKANES//ORGANIC GEOCHEMISTRY//LEAF WAX
6 5657 COPROSTANOL//ALKENONES//ORGANIC GEOCHEMISTRY
7 16266 TAR BALLS//OIL SPILL IDENTIFICATION//ENVIRONMENTAL FORENSICS
8 19810 HYDROTHERMAL PETROLEUM//EARTH OURCES FUEL GEOSCI UNIT//MODERN RIFT ZONE
9 15383 VANADYL PORPHYRINS//STERYL CHLORIN ESTERS//PETROPORPHYRINS
10 19820 GEOARABIA//JOURNAL OF PETROLEUM GEOLOGY//SARVAK FORMATION

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