Class information for:
Level 1: ALKUN FORMATION//CAUCASIAN REGIONAL STAGE//BIOCHRONOLOGIC UNIT

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
26681 248 43.8 24%


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
31 3       GEOGRAPHY, PHYSICAL//GEOSCIENCES, MULTIDISCIPLINARY//HOLOCENE 107938
300 2             PALEOCEANOGRAPHY//MARINE MICROPALEONTOLOGY//PALEONTOLOGY 18594
26681 1                   ALKUN FORMATION//CAUCASIAN REGIONAL STAGE//BIOCHRONOLOGIC UNIT 248

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 ALKUN FORMATION authKW 369379 1% 100% 3
2 CAUCASIAN REGIONAL STAGE authKW 369379 1% 100% 3
3 BIOCHRONOLOGIC UNIT authKW 277033 1% 75% 3
4 STRATIGRAPHY journal 246903 8% 11% 19
5 AMI BOUE authKW 246253 1% 100% 2
6 GEOCHRONOLOGIC UNIT authKW 246253 1% 100% 2
7 INTERNATIONAL COMMISSION ON STRATIGRAPHY authKW 246253 1% 100% 2
8 MARINE FISHFAUNA authKW 246253 1% 100% 2
9 SOLENOVIAN authKW 246253 1% 100% 2
10 TYLAWA LIMESTONES authKW 246253 1% 100% 2

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 Paleontology 16315 35% 0% 86
2 Geology 9552 27% 0% 68
3 Geosciences, Multidisciplinary 4037 47% 0% 116
4 Geography, Physical 486 8% 0% 19
5 History & Philosophy of Science 153 3% 0% 7
6 Multidisciplinary Sciences 100 4% 0% 9
7 Geochemistry & Geophysics 36 4% 0% 10
8 Mineralogy 25 2% 0% 4
9 Engineering, Petroleum 12 1% 0% 2
10 Zoology 3 2% 0% 5

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 HIGHER BUSINESS 131329 2% 27% 4
2 BIOCIENCIASUNIV SAO PAULO 123126 0% 100% 1
3 CC 089 123126 0% 100% 1
4 EQUIPE DIDACT BIOL ENVIRONM 123126 0% 100% 1
5 ESTRATIG UEI CORRELAC ESTRATIG 123126 0% 100% 1
6 INQUA COMMISS STRATIG CHRONOL 123126 0% 100% 1
7 INQUA SACCOM 123126 0% 100% 1
8 INQUA STRATIG CHRONOL COMMISS 123126 0% 100% 1
9 INQUA STRATIGR HY CHRONOL COMM 123126 0% 100% 1
10 INT COMMISS STRATIG 123126 0% 100% 1

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 STRATIGRAPHY 246903 8% 11% 19
2 EPISODES 118052 11% 4% 27
3 STRATIGRAPHY AND GEOLOGICAL CORRELATION 39026 7% 2% 17
4 EARTH SCIENCES HISTORY 35372 2% 6% 5
5 PALEONTOLOGICHESKII ZHURNAL 19000 5% 1% 12
6 NEWSLETTERS ON STRATIGRAPHY 10987 2% 1% 6
7 QUATERNAIRE 7688 2% 2% 4
8 EARTH-SCIENCE REVIEWS 7178 4% 1% 9
9 IZVESTIYA AKADEMII NAUK SSSR SERIYA GEOLOGICHESKAYA 6890 3% 1% 8
10 COMPTES RENDUS PALEVOL 6432 3% 1% 7

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 ALKUN FORMATION 369379 1% 100% 3 Search ALKUN+FORMATION Search ALKUN+FORMATION
2 CAUCASIAN REGIONAL STAGE 369379 1% 100% 3 Search CAUCASIAN+REGIONAL+STAGE Search CAUCASIAN+REGIONAL+STAGE
3 BIOCHRONOLOGIC UNIT 277033 1% 75% 3 Search BIOCHRONOLOGIC+UNIT Search BIOCHRONOLOGIC+UNIT
4 AMI BOUE 246253 1% 100% 2 Search AMI+BOUE Search AMI+BOUE
5 GEOCHRONOLOGIC UNIT 246253 1% 100% 2 Search GEOCHRONOLOGIC+UNIT Search GEOCHRONOLOGIC+UNIT
6 INTERNATIONAL COMMISSION ON STRATIGRAPHY 246253 1% 100% 2 Search INTERNATIONAL+COMMISSION+ON+STRATIGRAPHY Search INTERNATIONAL+COMMISSION+ON+STRATIGRAPHY
7 MARINE FISHFAUNA 246253 1% 100% 2 Search MARINE+FISHFAUNA Search MARINE+FISHFAUNA
8 SOLENOVIAN 246253 1% 100% 2 Search SOLENOVIAN Search SOLENOVIAN
9 TYLAWA LIMESTONES 246253 1% 100% 2 Search TYLAWA+LIMESTONES Search TYLAWA+LIMESTONES
10 UNIT STRATOTYPE 246253 1% 100% 2 Search UNIT+STRATOTYPE Search UNIT+STRATOTYPE

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 GIBBARD, PL , HEAD, MJ , WALKERS, MJC , (2010) FORMAL RATIFICATION OF THE QUATERNARY SYSTEM/PERIOD AND THE PLEISTOCENE SERIES/EPOCH WITH A BASE AT 2.58 MA.JOURNAL OF QUATERNARY SCIENCE. VOL. 25. ISSUE 2. P. 96 -102 22 73% 243
2 HEAD, MJ , GIBBARD, PL , (2015) FORMAL SUBDIVISION OF THE QUATERNARY SYSTEM/PERIOD: PAST, PRESENT, AND FUTURE.QUATERNARY INTERNATIONAL. VOL. 383. ISSUE . P. 4 -35 39 40% 5
3 GIBBARD, PL , HEAD, MJ , (2010) THE NEWLY-RATIFIED DEFINITION OF THE QUATERNARY SYSTEM/PERIOD AND REDEFINITION OF THE PLEISTOCENE SERIES/EPOCH, AND COMPARISON OF PROPOSALS ADVANCED PRIOR TO FORMAL RATIFICATION.EPISODES. VOL. 33. ISSUE 3. P. 152 -158 19 73% 19
4 WALSH, SL , (2006) HIERARCHICAL SUBDIVISION OF THE CENOZOIC ERA: A VENERABLE SOLUTION, AND A CRITIQUE OF CURRENT PROPOSALS.EARTH-SCIENCE REVIEWS. VOL. 78. ISSUE 3-4. P. 207-237 22 61% 17
5 GIBBARD, P , HEAD, MJ , (2009) THE DEFINITION OF THE QUATERNARY SYSTEM/ERA AND THE PLEISTOCENE SERIES/EPOCH.QUATERNAIRE. VOL. 20. ISSUE 2. P. 125 -133 17 71% 16
6 EASTON, RM , CATUNEANU, O , DONOVAN, AD , FLUEGEMAN, RH , HAMBLIN, AP , HARPER, H , LASCA, NP , MORROW, JR , ORNDORFF, RC , SADLER, P , ET AL (2014) NORTH AMERICAN COMMISSION ON STRATIGRAPHIC NOMENCLATURE NOTE 66: RECORDS OF STRATIGRAPHIC COMMISSION, 2003-2013.STRATIGRAPHY. VOL. 11. ISSUE 2. P. 143 -157 13 72% 0
7 MAIORANO, P , CAPOTONDI, L , CIARANFI, N , GIRONE, A , LIRER, E , MARINO, M , PELOSI, N , PETROSINO, P , PISCITELLI, A , (2010) VRICA-CROTONE AND MONTALBANO JONICO SECTIONS: A POTENTIAL UNIT-STRATOTYPE OF THE CALABRIAN STAGE.EPISODES. VOL. 33. ISSUE 4. P. 218-233 22 42% 13
8 FINNEY, SC , (2010) FORMAL DEFINITION OF THE QUATERNARY SYSTEM/PERIOD AND REDEFINITION OF THE PLEISTOCENE SERIES/EPOCH.EPISODES. VOL. 33. ISSUE 3. P. 159-163 9 100% 10
9 FERRUSQUIA-VILLAFRANCA, I , EASTON, RM , OWEN, DE , (2009) DO GSSPS RENDER DUAL TIME-ROCK/TIME CLASSIFICATION AND NOMENCLATURE REDUNDANT?.STRATIGRAPHY. VOL. 6. ISSUE 2. P. 135-169 13 65% 0
10 WALSH, SL , (2008) THE NEOGENE: ORIGIN, ADOPTION, EVOLUTION, AND CONTROVERSY.EARTH-SCIENCE REVIEWS. VOL. 89. ISSUE 1-2. P. 42-72 13 62% 9

Classes with closest relation at Level 1


Rank Class id link
1 8808 MESSINIAN//MESSINIAN SALINITY CRISIS//CENTRAL PARATETHYS
2 35780 LYELL//HISTORY OF GEOLOGICAL IDEAS//A WEGENER
3 14446 SAPROPEL//SAPROPEL S1//MEDITERRANEAN OUTFLOW WATER
4 29122 DOKLADY AKADEMII NAUK BELARUSI//POLAR URALS GLACIAL//UNIV STATE EDUC HIGH PROFESS EDUC
5 3316 PETM//PALEOCENE EOCENE THERMAL MAXIMUM//EOCENE
6 34675 ORTHOZONE//DINOCYSTS//WEST SIBERIAN PLATE
7 5046 AREA PREHIST//EARLY PLEISTOCENE//ATAPUERCA
8 8580 INITIAL REPORTS OF THE DEEP SEA DRILLING PROJECT//PLIOCENE//EASTERN GEOL PALEOCLIMATE SCI
9 35801 GREEN RIVER FORMATION//FISH COPROLITES//ABT MESSELFOR
10 34558 DEEP AND SHALLOW COMPONENTS//SEISMIC REFLECTION AND REFRACTION//VENICE

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