Class information for:
Level 1: INTERNATIONAL JOURNAL OF COAL GEOLOGY//COAL//MINERALS IN COAL

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
5914 1559 37.5 41%


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
18 4 THERMODYNAMICS//ENERGY & FUELS//ENGINEERING, CHEMICAL 531182
381 3       FUEL//HYDRODESULFURIZATION//ENERGY & FUELS 31814
781 2             FUEL//COAL//INTERNATIONAL JOURNAL OF COAL GEOLOGY 12166
5914 1                   INTERNATIONAL JOURNAL OF COAL GEOLOGY//COAL//MINERALS IN COAL 1559

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 INTERNATIONAL JOURNAL OF COAL GEOLOGY journal 1628536 29% 18% 451
2 COAL authKW 405323 20% 7% 309
3 MINERALS IN COAL authKW 356084 1% 91% 20
4 MODE OF OCCURRENCE authKW 322101 2% 66% 25
5 TONSTEIN authKW 315956 1% 73% 22
6 MODES OF OCCURRENCE authKW 275882 1% 78% 18
7 MINERAL MATTER authKW 272577 3% 30% 46
8 ENVIRONM SCI NANOTECHNOL address 264386 1% 75% 18
9 ENVIRONM NANOTECHNOL DEV address 252492 1% 68% 19
10 PL ENERGY address 242972 7% 12% 102

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 Energy & Fuels 59217 62% 0% 964
2 Geosciences, Multidisciplinary 17152 39% 0% 603
3 Engineering, Chemical 6672 28% 0% 434
4 Mining & Mineral Processing 2094 4% 0% 60
5 Mineralogy 1158 4% 0% 63
6 Geology 768 3% 0% 51
7 Geochemistry & Geophysics 585 6% 0% 94
8 Environmental Sciences 437 10% 0% 153
9 Engineering, Petroleum 216 1% 0% 20
10 Chemistry, Applied 152 4% 0% 58

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 ENVIRONM SCI NANOTECHNOL 264386 1% 75% 18
2 ENVIRONM NANOTECHNOL DEV 252492 1% 68% 19
3 PL ENERGY 242972 7% 12% 102
4 OURCE EXPLORAT HEBEI PROV 236389 2% 46% 26
5 STATE COAL OURCES SAFE MIN 173728 4% 13% 70
6 SOURCE EARTH SCI 97924 0% 100% 5
7 COAL ORGAN PETROL 88123 1% 50% 9
8 DEV TOURIST OPPORTUN 78339 0% 100% 4
9 ENVIRONM STUDY GRP 78335 0% 67% 6
10 CATARINENSE ENVIRONM HUMAN DEV 69943 0% 71% 5

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 INTERNATIONAL JOURNAL OF COAL GEOLOGY 1628536 29% 18% 451
2 ENERGY EXPLORATION & EXPLOITATION 68259 3% 7% 47
3 FUEL 46606 12% 1% 188
4 ENERGY SOURCES 27448 3% 3% 41
5 MINERALS 25397 1% 7% 19
6 ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS 13811 3% 2% 43
7 FUEL PROCESSING TECHNOLOGY 9252 3% 1% 49
8 ENERGY & FUELS 7086 4% 1% 66
9 INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION 3362 0% 3% 6
10 ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2878 1% 1% 14

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 COAL 405323 20% 7% 309 Search COAL Search COAL
2 MINERALS IN COAL 356084 1% 91% 20 Search MINERALS+IN+COAL Search MINERALS+IN+COAL
3 MODE OF OCCURRENCE 322101 2% 66% 25 Search MODE+OF+OCCURRENCE Search MODE+OF+OCCURRENCE
4 TONSTEIN 315956 1% 73% 22 Search TONSTEIN Search TONSTEIN
5 MODES OF OCCURRENCE 275882 1% 78% 18 Search MODES+OF+OCCURRENCE Search MODES+OF+OCCURRENCE
6 MINERAL MATTER 272577 3% 30% 46 Search MINERAL+MATTER Search MINERAL+MATTER
7 MARINE OIL SHALE 197478 1% 92% 11 Search MARINE+OIL+SHALE Search MARINE+OIL+SHALE
8 JUNGAR COALFIELD 176263 1% 100% 9 Search JUNGAR+COALFIELD Search JUNGAR+COALFIELD
9 TRACE ELEMENTS IN COAL 176257 1% 75% 12 Search TRACE+ELEMENTS+IN+COAL Search TRACE+ELEMENTS+IN+COAL
10 LATE PERMIAN COAL 139268 1% 89% 8 Search LATE+PERMIAN+COAL Search LATE+PERMIAN+COAL

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 WARD, CR , (2016) ANALYSIS, ORIGIN AND SIGNIFICANCE OF MINERAL MATTER IN COAL: AN UPDATED REVIEW.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 165. ISSUE . P. 1 -27 168 62% 3
2 DAI, SF , REN, DY , CHOU, CL , FINKELMAN, RB , SEREDIN, VV , ZHOU, YP , (2012) GEOCHEMISTRY OF TRACE ELEMENTS IN CHINESE COALS: A REVIEW OF ABUNDANCES, GENETIC TYPES, IMPACTS ON HUMAN HEALTH, AND INDUSTRIAL UTILIZATION.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 94. ISSUE . P. 3 -21 83 80% 187
3 CHEN, J , CHEN, P , YAO, DX , LIU, Z , WU, YS , LIU, WZ , HU, YB , (2015) MINERALOGY AND GEOCHEMISTRY OF LATE PERMIAN COALS FROM THE DONGLIN COAL MINE IN THE NANTONG COALFIELD IN CHONGQING, SOUTHWESTERN CHINA.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 149. ISSUE . P. 24 -40 87 98% 7
4 DAI, SF , XIE, PP , JIA, SH , WARD, CR , HOWER, JC , YAN, XY , FRENCH, D , (2017) ENRICHMENT OF U-RE-V-CR-SE AND RARE EARTH ELEMENTS IN THE LATE PERMIAN COALS OF THE MOXINPO COALFIELD, CHONGQING, CHINA: GENETIC IMPLICATIONS FROM GEOCHEMICAL AND MINERALOGICAL DATA.ORE GEOLOGY REVIEWS. VOL. 80. ISSUE . P. 1 -17 49 80% 2
5 WANG, XB , DAI, SF , CHEKRYZHOV, IY , HOWER, JC , WARD, CR , REN, DY , SEREDIN, VV , NECHAEV, VP , GRAHAM, IT , (2016) METALLIFEROUS COAL DEPOSITS IN EAST ASIA (PRIMORYE OF RUSSIA AND SOUTH CHINA): A REVIEW OF GEODYNAMIC CONTROLS AND STYLES OF MINERALIZATION.GONDWANA RESEARCH. VOL. 29. ISSUE 1. P. 60 -82 79 61% 11
6 DAI, SF , SEREDIN, VV , WARD, CR , HOWER, JC , XING, YW , ZHANG, WG , SONG, WJ , WANG, PP , (2015) ENRICHMENT OF U-SE-MO-RE-V IN COALS PRESERVED WITHIN MARINE CARBONATE SUCCESSIONS: GEOCHEMICAL AND MINERALOGICAL DATA FROM THE LATE PERMIAN GUIDING COALFIELD, GUIZHOU, CHINA.MINERALIUM DEPOSITA. VOL. 50. ISSUE 2. P. 159 -186 63 89% 21
7 DAI, SF , GRAHAM, IT , WARD, CR , (2016) A REVIEW OF ANOMALOUS RARE EARTH ELEMENTS AND YTTRIUM IN COAL.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 159. ISSUE . P. 82 -95 65 57% 17
8 SIA, SG , ABDULLAH, WH , (2012) ENRICHMENT OF ARSENIC, LEAD, AND ANTIMONY IN BALINGIAN COAL FROM SARAWAK, MALAYSIA: MODES OF OCCURRENCE, ORIGIN, AND PARTITIONING BEHAVIOUR DURING COAL COMBUSTION.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 101. ISSUE . P. 1-15 83 85% 12
9 GURDAL, G , (2011) ABUNDANCES AND MODES OF OCCURRENCE OF TRACE ELEMENTS IN THE CAN COALS (MIOCENE), CANAKKALE-TURKEY.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 87. ISSUE 2. P. 157 -173 73 87% 29
10 HOWER, JC , EBLE, CF , DAI, SF , BELKIN, HE , (2016) DISTRIBUTION OF RARE EARTH ELEMENTS IN EASTERN KENTUCKY COALS: INDICATORS OF MULTIPLE MODES OF ENRICHMENT?.INTERNATIONAL JOURNAL OF COAL GEOLOGY. VOL. 160. ISSUE . P. 73 -81 41 91% 10

Classes with closest relation at Level 1


Rank Class id link
1 14717 INTERNATIONAL JOURNAL OF COAL GEOLOGY//COAL PETROLOGY//MACERALS
2 9780 COAL COMBUSTION//INCINERATION//HEAVY METAL VAPORIZATION
3 9350 FLY ASH//COAL FLY ASH//FLY ASH DEPOSITS
4 13611 ASPHALTITE//ULTRA CLEAN COAL//ORGANIC SULPHUR
5 27357 CFBC FLY ASH//FOAM INDEX//UNBURNED CARBON
6 6665 ELEMENTAL MERCURY//MERCURY OXIDATION//MERCURY CAPTURE
7 26832 SLIDING MUD//SULFURIZED RUST//PYROPHORIC IRON SULFIDE
8 28859 CENOSPHERES//BARREL SPUTTERING SYSTEM//FLY ASH CENOSPHERES
9 17252 IGNEOUS INTRUSION//NATURAL COKE//INTERNATIONAL JOURNAL OF COAL GEOLOGY
10 33040 APPLIED COAL PETROGRAPHY//BERGBAU FORSCHUNG//CALBINDIN AND PARVALBUMIN

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