Cathodoluminescence measurements of several minerals under a sample-temperature control and its application
Project/Area Number |
16K05614
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Petrology/Mineralogy/Economic geology
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Research Institution | Okayama University of Science |
Principal Investigator |
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Research Collaborator |
Kusano Nobuhiro
Ohgo Shuhei
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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Keywords | カソードルミネッセンス / 発光中心 / 温度消光 / 温度増感 / 発光メカニズム / 鉱物 / ルミネッセンス鉱物 / 試料温度効果 / 岩石・鉱物・鉱床学 / ルミネッセンス / 結晶化学 |
Outline of Final Research Achievements |
Cathodoluminescence (CL) characterization of several minerals including carbonates and hydrous silicates has been conducted to clarify unusual effects of sample temperature on their CL emissions. The luminescent efficiencies at individual temperatures were quantitatively estimated from the Arrhenius plots indicating temperature quenching and/or sensitizing processes, which can be explained on the basis of Mott-Seitz and Barnett-Bailiff models. In general, luminescence efficiency decreases with rising temperature due to an increase in non-radiative transitions. However, this study reveals that a variety of CL quenching and sensitizing mechanisms in the minerals should be closely related to characteristic features of emission centers and energy transfers between the centers.
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Academic Significance and Societal Importance of the Research Achievements |
物質に電子線を照射した際に発現するルミネッセンス(CL)を温度変化させ測定し、各種鉱物に内在する発光要因(発光中心)と発光メカニズムを明らかにしてきた。従来からこの分野の探究はほとんどなく、CLを用いた鉱物の結晶化学的研究に新たな方法を提示でき、鉱物のCLを指標とする地質温度計、地質圧力計および地質線量計への応用が期待できる。これにより、新たな資源探査や放射線被ばく線量の推定などへの実用も可能かもしれない。
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Report
(4 results)
Research Products
(33 results)
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[Journal Article] Composition of Asian dust from cathodoluminescence spectral analysis of single quartz grain2017
Author(s)
Nagashima, K., Nishido, H., Kayama, M., Kurosaki, Y., Ohgo, S. and Hasegawa, H.
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Journal Title
Geology
Volume: 45
Pages: 303-312
Related Report
Peer Reviewed
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[Journal Article] Recurrent magmatic activity on a lithosphere-scale structure-Crystallization and deformation in kimberlitic zircons2017
Author(s)
Tretiakova, I.G., Belousova, E.A., Malkovets, V.G., Griffin, W.L., Piazolo, S., Pearson, N.J., O'Reilly, S.Y. and Nishido, H.
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Journal Title
Gondwana Research
Volume: 42
Pages: 126-132
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Recurrent magmatic activity on a lithosphere-scale structure: Crystallization and deformation in kimberlitic zircons2017
Author(s)
Tretiakova, .I, Belousova, E., Malkovets, V., Grifin, W., Piazolo, S., Pearso, N., O'Reilly, S., Nishido, H.
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Journal Title
Gondwana Research
Volume: 42
Pages: 126-132
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Cryptoperthitic and replacive intergrowths with iridescence in monzonitic rocks from Cerro Colorado, northern Chile2016
Author(s)
Nakano, S., Kojima, S., Makino, K., Kayama, M., Nishido, H. and Akai, J
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Journal Title
European Journal of Mineralogy
Volume: 28
Pages: 355-374
Related Report
Peer Reviewed
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[Journal Article] Cathodoluminescence and Raman Spectromicroscopy of Forsterite in Tagish Lake Meteorite, Implications for Astromineralogy2016
Author(s)
Gucsik, A., Gyollai, I., Nishido, H., Ninagawa, K., Izawa, M., Jager, C., Simonia, I., Ott, U., Szaniszlo, C. and Kayama, M.
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Journal Title
International Journal of Spectroscopy
Volume: 2016
Pages: 1-8
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Shock pressure estimation in basement rocks of the Chicxulub impact crater using cathodoluminescence spectroscopy of quartz2017
Author(s)
Tani, R, Tomioka, N., Kayama, M., Chang, Y., Nishido, H., Das, K., Rae, A, Ferrire, L., Gulick, S., Morgan, J. and the IODP-ICDP Expedition 364 Scientists
Organizer
AGU2017 Fall Meeting
Related Report
Int'l Joint Research
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