Class information for:
Level 1: OBSIDIAN//OBSIDIAN SOURCING//PXRF

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
18607 544 31.8 34%


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
1 4 ECONOMICS//EDUCATION & EDUCATIONAL RESEARCH//PSYCHOL 3876184
400 3       ARCHAEOLOGY//ANTHROPOLOGY//AMERICAN ANTIQUITY 30112
1759 2             ARCHAEOMETRY//JOURNAL OF GLASS STUDIES//ARCHAEOLOGY 6432
18607 1                   OBSIDIAN//OBSIDIAN SOURCING//PXRF 544

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 OBSIDIAN authKW 1402415 16% 28% 89
2 OBSIDIAN SOURCING authKW 649492 3% 64% 18
3 PXRF authKW 582186 4% 45% 23
4 OBSIDIAN PROVENANCE authKW 449040 1% 100% 8
5 PORTABLE X RAY FLUORESCENCE authKW 382688 3% 45% 15
6 PORTABLE XRF authKW 303077 3% 30% 18
7 ARCHAEOL XRF address 288667 1% 86% 6
8 MCMASTER ARCHAEOL XRF address 280650 1% 100% 5
9 UMR 5060 address 235633 5% 16% 26
10 PORTABLE X RAY FLUORESCENCE PXRF authKW 202063 1% 60% 6

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 Archaeology 50999 33% 1% 181
2 Anthropology 9812 21% 0% 113
3 Geosciences, Multidisciplinary 2877 27% 0% 148
4 Chemistry, Analytical 743 17% 0% 92
5 Nuclear Science & Technology 711 11% 0% 61
6 Spectroscopy 564 9% 0% 51
7 Environmental Sciences 483 16% 0% 86
8 Chemistry, Inorganic & Nuclear 381 10% 0% 56
9 Soil Science 281 5% 0% 25
10 Geochemistry & Geophysics 222 6% 0% 34

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 ARCHAEOL XRF 288667 1% 86% 6
2 MCMASTER ARCHAEOL XRF 280650 1% 100% 5
3 UMR 5060 235633 5% 16% 26
4 RECH ARCHEOMAT 145917 2% 20% 13
5 DIPARTIMENTO SCI ARCHEOL STOR ARTIST 126291 1% 75% 3
6 OLD WORLD ARCHAEOL PROGRAM 126291 1% 75% 3
7 CDCROBERT A TAFT S 112260 0% 100% 2
8 GRP GEOPHYS NUCL 112260 0% 100% 2
9 GRP RECH PREHIST PROTOHIST 112260 0% 100% 2
10 PREHIST SCI ANTIQUITE 112260 0% 100% 2

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 JOURNAL OF ARCHAEOLOGICAL SCIENCE 75508 15% 2% 83
2 GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS 44289 3% 5% 17
3 ARCHAEOMETRY 32374 5% 2% 28
4 ACTA HISTORIAE ARTIUM ACADEMIAE SCIENTIARUM HUNGARICAE 14029 0% 13% 2
5 GEOARCHAEOLOGY-AN INTERNATIONAL JOURNAL 12305 2% 2% 11
6 JOURNAL OF MEDITERRANEAN ARCHAEOLOGY 6914 1% 4% 3
7 AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL 6060 3% 1% 16
8 COMPTES RENDUS PALEVOL 5977 2% 1% 10
9 TRABAJOS DE PREHISTORIA 5095 1% 2% 4
10 X-RAY SPECTROMETRY 2705 2% 0% 10

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 OBSIDIAN 1402415 16% 28% 89 Search OBSIDIAN Search OBSIDIAN
2 OBSIDIAN SOURCING 649492 3% 64% 18 Search OBSIDIAN+SOURCING Search OBSIDIAN+SOURCING
3 PXRF 582186 4% 45% 23 Search PXRF Search PXRF
4 OBSIDIAN PROVENANCE 449040 1% 100% 8 Search OBSIDIAN+PROVENANCE Search OBSIDIAN+PROVENANCE
5 PORTABLE X RAY FLUORESCENCE 382688 3% 45% 15 Search PORTABLE+X+RAY+FLUORESCENCE Search PORTABLE+X+RAY+FLUORESCENCE
6 PORTABLE XRF 303077 3% 30% 18 Search PORTABLE+XRF Search PORTABLE+XRF
7 PORTABLE X RAY FLUORESCENCE PXRF 202063 1% 60% 6 Search PORTABLE+X+RAY+FLUORESCENCE+PXRF Search PORTABLE+X+RAY+FLUORESCENCE+PXRF
8 FIELD PORTABLE X RAY FLUORESCENCE 175403 1% 63% 5 Search FIELD+PORTABLE+X+RAY+FLUORESCENCE Search FIELD+PORTABLE+X+RAY+FLUORESCENCE
9 EAST GOLLU DAG 168390 1% 100% 3 Search EAST+GOLLU+DAG Search EAST+GOLLU+DAG
10 HANDHELD PORTABLE X RAY FLUORESCENCE HHPXRF 168390 1% 100% 3 Search HANDHELD+PORTABLE+X+RAY+FLUORESCENCE+HHPXRF Search HANDHELD+PORTABLE+X+RAY+FLUORESCENCE+HHPXRF

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 TYKOT, RH , (2016) USING NONDESTRUCTIVE PORTABLE X-RAY FLUORESCENCE SPECTROMETERS ON STONE, CERAMICS, METALS, AND OTHER MATERIALS IN MUSEUMS: ADVANTAGES AND LIMITATIONS.APPLIED SPECTROSCOPY. VOL. 70. ISSUE 1. P. 42 -56 24 69% 3
2 FREUND, KP , (2013) AN ASSESSMENT OF THE CURRENT APPLICATIONS AND FUTURE DIRECTIONS OF OBSIDIAN SOURCING STUDIES IN ARCHAEOLOGICAL RESEARCH.ARCHAEOMETRY. VOL. 55. ISSUE 5. P. 779-793 43 46% 8
3 FRAHM, E , SCHMIDT, BA , GASPARYAN, B , YERITSYAN, B , KARAPETIAN, S , MELIKSETIAN, K , ADLER, DS , (2014) TEN SECONDS IN THE FIELD: RAPID ARMENIAN OBSIDIAN SOURCING WITH PORTABLE XRF TO INFORM EXCAVATIONS AND SURVEYS.JOURNAL OF ARCHAEOLOGICAL SCIENCE. VOL. 41. ISSUE . P. 333-348 24 67% 6
4 WEINDORF, DC , BAKR, N , ZHU, YD , (2014) ADVANCES IN PORTABLE X-RAY FLUORESCENCE (PXRF) FOR ENVIRONMENTAL, PEDOLOGICAL, AND AGRONOMIC APPLICATIONS.ADVANCES IN AGRONOMY, VOL 128. VOL. 128. ISSUE . P. 1 -45 39 39% 11
5 STOCKMANN, U , CATTLE, SR , MINASNY, B , MCBRATNEY, AB , (2016) UTILIZING PORTABLE X-RAY FLUORESCENCE SPECTROMETRY FOR IN-FIELD INVESTIGATION OF PEDOGENESIS.CATENA. VOL. 139. ISSUE . P. 220 -231 19 63% 4
6 MILIC, M , (2014) PXRF CHARACTERISATION OF OBSIDIAN FROM CENTRAL ANATOLIA, THE AEGEAN AND CENTRAL EUROPE.JOURNAL OF ARCHAEOLOGICAL SCIENCE. VOL. 41. ISSUE . P. 285-296 18 82% 10
7 FRAHM, E , FEINBERG, JM , SCHMIDT-MAGEE, BA , WILKINSON, K , GASPARYAN, B , YERITSYAN, B , KARAPETIAN, S , MELIKSETIAN, K , MUTH, MJ , ADLER, DS , (2014) SOURCING GEOCHEMICALLY IDENTICAL OBSIDIAN: MULTISCALAR MAGNETIC VARIATIONS IN THE GUTANSAR VOLCANIC COMPLEX AND IMPLICATIONS FOR PALAEOLITHIC RESEARCH IN ARMENIA.JOURNAL OF ARCHAEOLOGICAL SCIENCE. VOL. 47. ISSUE . P. 164 -178 22 71% 1
8 FRAHM, E , FEINBERG, JM , (2013) EMPIRES AND RESOURCES: CENTRAL ANATOLIAN OBSIDIAN AT URKESH (TELL MOZAN, SYRIA) DURING THE AKKADIAN PERIOD.JOURNAL OF ARCHAEOLOGICAL SCIENCE. VOL. 40. ISSUE 2. P. 1122-1135 22 71% 3
9 LE BOURDONNEC, FX , BONTEMPI, JM , MARINI, N , MAZET, S , NEUVILLE, PF , POUPEAU, G , SICURANI, J , (2010) SEM-EDS CHARACTERIZATION OF WESTERN MEDITERRANEAN OBSIDIANS AND THE NEOLITHIC SITE OF A FUATA (CORSICA).JOURNAL OF ARCHAEOLOGICAL SCIENCE. VOL. 37. ISSUE 1. P. 92 -106 16 100% 11
10 FRAHM, E , FEINBERG, JM , (2013) FROM FLOW TO QUARRY: MAGNETIC PROPERTIES OF OBSIDIAN AND CHANGING THE SCALE OF ARCHAEOLOGICAL SOURCING.JOURNAL OF ARCHAEOLOGICAL SCIENCE. VOL. 40. ISSUE 10. P. 3706 -3721 20 74% 2

Classes with closest relation at Level 1


Rank Class id link
1 32444 ENERGY DISPERSIVE X RAY FLUORESCENCE AND SCATTERING//GERX//PLASTICS CHARACTERIZATION
2 24169 ANAL MAT ANTICHI//MILLSTONE//WHITE MARBLE
3 22829 PLAGGEN SOILS//MULTI ELEMENT SOIL ANALYSIS//PLAGGENESCH
4 9340 POLYCAPILLARY OPTICS//CAPILLARY OPTICS//POLYCAPILLARY X RAY OPTICS
5 12062 PIXE//EXTERNAL BEAM//SILVER COINS
6 32789 SLOWPOKE REACTOR ILITY//OLD COPPER COMPLEX//ONTARIO SERV
7 4942 ARCHAEOMETRY//FIRING TEMPERATURE//POTTERY
8 21287 XRF ANALYSIS OF BIOLOGICAL SAMPLES//WDXRF ANALYSIS//PEDXRF
9 5044 LITHIC TECHNOLOGY//PALEOINDIAN//PLAINS ANTHROPOLOGIST
10 9058 SOUTHERN LEVANT//ARCHAEOLOGY//LEVANT

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