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Yuguchi, Takashi*; Ogita, Yasuhiro; Kato, Takenori*; Yokota, Rintaro*; Sasao, Eiji; Nishiyama, Tadao*
Journal of Asian Earth Sciences, 192, p.104289_1 - 104289_16, 2020/05
Times Cited Count：5 Percentile：31.49(Geosciences, Multidisciplinary)Quartz from a granitic pluton is found to have formed through sequential growth events under different mechanisms and crystallization temperatures, which can provide new insights into magmatic processes of granitic magmas that were eventually consolidified into plutons. The events were identified using (1) the description of crystal shape and occurrence, (2) the study of the internal structure with cathodoluminescence (CL), and (3) derivation of the crystallization temperatures based on TitaniQ thermometry. The magmatic quartz crystals from the Toki granite, central Japan, are characterized as having the following internal structures: oscillatory zonation, no-oscillatory zonation with luminescence graduation (gradational zonation), and heterogeneous CL. The quartz crystals with oscillatory zonation were formed in the temperature range of about 800 
C to below 700 C, which is referred to as oscillatory zoning temperature (OZT) conditions. The CL zonation pattern was controlled by the temperature conditions and titanium diffusivity in the melt (magma). The crystallization process of quartz within the Toki granite reveals the cooling processes of the granitic pluton; the lithofacies with a high frequency of oscillatory-zoned quartz underwent slower cooling under the OZT conditions than those in other lithofacies.
Yamanishi, Toshihiko; Iwai, Yasunori; Okuno, Kenji
JAERI-Research 95-058, 22 Pages, 1995/09
JAERI-Research-95-058.pdf:0.69MB
no abstracts in English
W.M.Shu*; Okuno, Kenji; Hayashi, Yasunori*
Journal of Physical Chemistry, 97(17), p.4497 - 4499, 1993/00
Times Cited Count：11 Percentile：43.86(Chemistry, Physical)no abstracts in English
in HNO
solutionJournal of Nuclear Materials, 138, p.152 - 154, 1986/00
Times Cited Count：26 Percentile：98.2(Materials Science, Multidisciplinary)no abstracts in English
;
IEEE Transactions on Electrical Insulation, EI-16(6), p.528 - 532, 1981/00
Times Cited Count：7 Percentile：68.71(Engineering, Electrical & Electronic)no abstracts in English
El-S.A.Hegazy*; ;
J.Appl.Polym.Sci., 26, p.3117 - 3124, 1981/00
Times Cited Count：84 Percentile：95.93(Polymer Science)no abstracts in English
; ; ;
Journal of Nuclear Materials, 101, p.200 - 206, 1981/00
Times Cited Count：12 Percentile：79.98(Materials Science, Multidisciplinary)no abstracts in English
Nihon Genshiryoku Gakkai-Shi, 22(11), p.769 - 775, 1980/00
Times Cited Count：2 Percentile：33.82(Nuclear Science & Technology)no abstracts in English
Ogita, Yasuhiro; Yuguchi, Takashi*; Kato, Takenori*; Yokota, Rintaro*; Sasao, Eiji; Nishiyama, Tadao*
no journal, ,
no abstracts in English
