globalchange  > 气候变化与战略
DOI: 10.1016/j.earscirev.2020.103210
论文题名:
Comparability of heavy mineral data – The first interlaboratory round robin test
作者: Dunkl I.; von Eynatten H.; Andò S.; Lünsdorf K.; Morton A.; Alexander B.; Aradi L.; Augustsson C.; Bahlburg H.; Barbarano M.; Benedictus A.; Berndt J.; Bitz I.; Boekhout F.; Breitfeld T.; Cascalho J.; Costa P.J.M.; Ekwenye O.; Fehér K.; Flores-Aqueveque V.; Führing P.; Giannini P.; Goetz W.; Guedes C.; Gyurica G.; Hennig-Breitfeld J.; Hülscher J.; Jafarzadeh M.; Jagodziński R.; Józsa S.; Kelemen P.; Keulen N.; Kovacic M.; Liebermann C.; Limonta M.; Lužar-Oberiter B.; Markovic F.; Melcher F.; Miklós D.G.; Moghalu O.; Mounteney I.; Nascimento D.; Novaković T.; Obbágy G.; Oehlke M.; Omma J.; Onuk P.; Passchier S.; Pfaff K.; Lincoñir L.P.; Power M.; Razum I.; Resentini A.; Sági T.; Salata D.; Salgueiro R.; Schönig J.; Sitnikova M.; Sternal B.; Szakmány G.; Szokaluk M.; Thamó-Bozsó E.; Tóth Á.; Tremblay J.; Verhaegen J.; Villaseñor T.; Wagreich M.; Wolf A.; Yoshida K.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2020
卷: 211
语种: 英语
中文关键词: Heavy mineral analysis ; Interlaboratory comparison ; Provenance ; Raman spectroscopy ; SEM-EDX
英文关键词: chemical analysis ; comparative study ; heavy mineral ; laboratory method ; mineral resource ; mineralogy ; provenance ; Raman spectroscopy ; scanning electron microscopy
英文摘要: Heavy minerals are typically rare but important components of siliciclastic sediments and rocks. Their abundance, proportions, and variability carry valuable information on source rocks, climatic, environmental and transport conditions between source to sink, and diagenetic processes. They are important for practical purposes such as prospecting for mineral resources or the correlation and interpretation of geologic reservoirs. Despite the extensive use of heavy mineral analysis in sedimentary petrography and quite diverse methods for quantifying heavy mineral assemblages, there has never been a systematic comparison of results obtained by different methods and/or operators. This study provides the first interlaboratory test of heavy mineral analysis. Two synthetic heavy mineral samples were prepared with considerably contrasting compositions intended to resemble natural samples. The contributors were requested to provide (i) metadata describing methods, measurement conditions and experience of the operators and (ii) results tables with mineral species and grain counts. One hundred thirty analyses of the two samples were performed by 67 contributors, encompassing both classical microscopic analyses and data obtained by emerging automated techniques based on electron-beam chemical analysis or Raman spectroscopy. Because relatively low numbers of mineral counts (N) are typical for optical analyses while automated techniques allow for high N, the results vary considerably with respect to the Poisson uncertainty of the counting statistics. Therefore, standard methods used in evaluation of round robin tests are not feasible. In our case the ‘true’ compositions of the test samples are not known. Three methods have been applied to determine possible reference values: (i) the initially measured weight percentages, (ii) calculation of grain percentages using estimates of grain volumes and densities, and (iii) the best-match average calculated from the most reliable analyses following multiple, pragmatic and robust criteria. The range of these three values is taken as best approximation of the ‘true’ composition. The reported grain percentages were evaluated according to (i) their overall scatter relative to the most likely composition, (ii) the number of identified components that were part of the test samples, (iii) the total amount of mistakenly identified mineral grains that were actually not added to the samples, and (iv) the number of major components, which match the reference values with 95% confidence. Results indicate that the overall comparability of the analyses is reasonable. However, there are several issues with respect to methods and/or operators. Optical methods yield the poorest results with respect to the scatter of the data. This, however, is not considered inherent to the method as demonstrated by a significant number of optical analyses fulfilling the criteria for the best-match average. Training of the operators is thus considered paramount for optical analyses. Electron-beam methods yield satisfactory results, but problems in the identification of polymorphs and the discrimination of chain silicates are evident. Labs refining their electron-beam results by optical analysis practically tackle this issue. Raman methods yield the best results as indicated by the highest number of major components correctly quantified with 95% confidence and the fact that all laboratories and operators fulfil the criteria for the best-match average. However, a number of problems must be solved before the full potential of the automated high-throughput techniques in heavy mineral analysis can be achieved. © 2020 Elsevier B.V.
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被引频次[WOS]:13   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166064
Appears in Collections:气候变化与战略

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作者单位: Sedimentology and Environmental Gelogy, University of Göttingen, Goldschmidtstr. 3, Göttingen, D-37077, Germany; Department of Earth and Environmental Sciences, University of Milano Bicocca, Piazza della Scienza 4, Milano, I-20126, Italy; HM Research Associates Giddanmu, Musselwick Road, St Ishmaels, Pembrokeshire, SA62 3TJ, United Kingdom; School of Science, University of Greenwich, Central Avenue, Chatham Maritime, Kent, ME4 4TB, United Kingdom; Lithosphere Fluid Research Laboratory, Eötvös Loránd University, Pázmány P. sétány 1/C, Budapest, H-1117, Hungary; Institutt for Energiressurser, Stavanger, N-4036, Norway; Institut für Geologie und Paläontologie, Westfälische Wilhelms-Universität, Corrensstrasse 24, Münster, D-48149, Germany; Chemostrat Ltd 1, Ravenscroft Court, Buttington Enterprise Park, Welshpool, SY21 8SL, United Kingdom; Rocktype Ltd, 87 Divinity Road, Oxford, OX4 1LN, United Kingdom; Institut für Mineralogie, Westfälische Wilhelms-Universität, Corrensstrasse 24, Münster, D-48149, Germany; Landesamt für Bergbau, Energie und Geologie Geozentrum, Hannover, Germany; Queens Building SE Asia Research Group Earth Sciences Department, Royal Holloway University of London, Egham Hill EGHAM, Surrey, TW20 0EX, United Kingdom; Instituto D. Luiz and Departamento de Geologia, Universidade de Lisboa, Edifício C6, Campo Grande, Lisboa, 1749-016, Portugal; Departamento de Ciências da Terra, Universidade de Coimbra, Coimbra, Portugal; Department of Geology, University of Nigeria, Nsukka, Enugu State 410001, Nigeria; Department of Petrology & Geochemistry, Eötvös University, Pázmány P. sétány 1/C, Budapest, H-1117, Hungary; ARQMAR Centre for Maritime Archaeology Research of the Southeastern Pacific, Casilla 21Valparaiso 2340000, Chile; Institute of Geosciences, University of São Paulo Rua do Lago, 562, Cidade Universitária, Butantã, São Paulo 05508-080, Brazil; Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg, 3, Göttingen, D - 37077, Germany; Geology department, Universidade Federal do Paraná, Av. Cel. Francisco H. dos Santos, 210 - Jardim das Américas, Curitiba, PR 81531-980, Brazil; Department of Applied and Environmental Geology, Mining and Geological Survey of Hungary, Stefánia út 14 H-1143, Budapest, Hungary; Department of Earth Sciences Egham Hill, Royal Holloway University of London, Egham, TW20 0EX, United Kingdom; Institut für geologische Wissenschaften Tektonik und Sedimentäre Systeme, Freie Universität Berlin, Malteserstr. 74-100, Berlin, D-12249, Germany; Faculty of Earth Sciences, Shahrood University of Technology, Hafte-Tir square, Shahrood, Iran; Geohazards Lab, Institute of Geology, Adam Mickiewicz University in Poznań, Bogumiła Krygowskiego 12, Poznań, PL-61-680, Poland; Department of Petrology and Economic Geology, Geological Survey of Denmark and Greenland, Øster Voldgade 10, Copenhagen K, DK-1350, Denmark; Department of Geology, Institute of Mineralogy and Petrology, University of Zagreb, Horvatovac 95, Zagreb, HR-10000, Croatia; Department of Geology, Faculty of Science, University of Zagreb Geološko-paleontološki zavod, Prirodoslovno-matematički fakultet, Horvatovac 102a, Zagreb, HR-10000, Croatia; Chair of Geology and Economic Geology, Montanuniversität Leoben, Peter-Tunner-Straße 5, Leoben, A-8700, Austria; British Geological Survey, Knicker, Hill Keyworth, Nottingham, NG12 5GG, United Kingdom; Departamento de Geologia, Universidade Federal do Ceará, Campus do PICI, Bloco 912 60440-554, Fortaleza (CE), Brazil; Institute for Nuclear Research, Hungarian Academy of Sciences, Bem square 18/c, Debrecen, H-4026, Hungary; Department of Earth and Environmental Studies, Montclair State University, CELS 220, 1 Normal Ave, Montclair, NJ 07043, United States; Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, United States; Departmento de Geologia, FCFM, Universidad de Chile, Plaza Ercilla 803, Casilla 13518, Correo 21, Santiago, Chile; Oil, Gas & Chemicals Services, SGS Canada Inc., 3260 Production Way, Burnaby, BC V5A 4W4, Canada; Croatian Natural History Museum, Demetrova 1, Zagreb, HR-10000, Croatia; Faculty of Geography and Geology, Institute of Geological Sciences, Jagiellonian University, Gronostajowa 3a, Krakow, PL-30-387, Poland; LNEG-Laboratório Nacional de Energia e Geologia, Estrada da Portela, Bairro do Zambujal, Apartado 7586- Alfragide, Amadora, 2610-999, Portugal; BGR B2.1 Geophysikalische Erkundung - Technische Mineralogie, Stilleweg 2, Hannover, D-30655, Germany; Department of Mineralogy and Petrology, Institute of Geology, Adam Mickiewicz University in Poznan, str. Bogumila Krygowskiego 12, Poznan, PL-61-680, Poland; Department of Geological Basic Research, Mining and Geological Survey of Hungary, Stefánia út 14, Budapest, H-1143, Hungary; IOS Services Geoscientifiques Inc, 1319 St-Paul Boulevard, Saguenay, Québec G7J 3Y2, Canada; Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200E, Heverlee, B-3001, Belgium; Department of Geodynamics and Sedimentology, Center for Earth Sciences, University of Vienna, Althanstrasse 14, Vienna, A-1090, Austria; Department of Geology, Faculty of Science Shinshu University, Asahi 3-1-1, Matsumoto, Nagano Prefecture 390-8621, Japan

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Dunkl I.,von Eynatten H.,Andò S.,et al. Comparability of heavy mineral data – The first interlaboratory round robin test[J]. Earth Science Reviews,2020-01-01,211
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