 | | Journal (article/letter/editorial) | | 435‑441, 1990 広 島県東 城 町 久代産 ネフ ェ リン Nepheline Nepheline at was Kushiro, mm wide, with the observed...magma. は 逸 見 ら(1976)に I.は Japan Henmi)** accompanied mineral Prefecture, Kusachi)* 子(Chiyoko rocks...rocks The Chemical nepheline-bearing quartz 千 and ƒÃ=1.528. Q4.9. Hiroshima 功(Isao contaminated... tion 地 Prefecture. associated unit 草 found Hiroshima refractive and from Kushiro, じ め に よ...フ ェ リン は 確 認 され て い な い 。 で は2%弱 rocks from Kushiro . ネ フェリ ン と共 生 す る 単 斜 輝 石 は 累 帯 構 造 を 示 す も | | | Journal (article/letter/editorial) | | J. Japan. Assoc. Min.P etr. Econ. Geol. 74, 57-67. 1979. PETROCHEMISTRY MAFIC AND DIKE IN MINERALOGY...K2O-RICH KAGAWA PREFECTURE OSAMU UJIKE Shikoku Office, GeologicalSurvey of Japan, 10-6, Bancho-1, Takamatsu...near Shodo-shima Cretaceous N25•‹E mass, Hiroshima lamprophyres Late strikes the road-cut (Fig...(Fig. so-called the rock a Prefecture the of plutonic to Uchinomi-cho, Kagawa of Cretaceous...(crosses), has a mafic dike in Shodo-shima, Kagawa Prefecture 59 composition falling within the alkalic field |  | | Journal (article/letter/editorial) | | 3O 8), pyroxene (aegirine, N aFeSi 2O 6) and nepheline (Na3KAl4Si4O16) in the form of rims along the...Primary minerals rich in potassium (phlogopite, nepheline, etc.) can also serve as the source of the element...from a gehlenite–spurrite skarn (at Kushiro, Hiroshima Prefecture, Japan), which was formed at the peak of...djerfisherite in gehlenite-spurrite skarn at Kushiro, Hiroshima Prefecture, Japan. Resour Geol 50:179–184. https://doi |  | | Journal (article/letter/editorial) | | basalt a n d shows increasing n o r m a t i v e nepheline with advancing f r a c t i o n a t i o n to r...i z e d by the presence o f n o r m a t i v e nepheline as well as by the absence o f o r t h o p y r...Norway contains not only aegirinebearing and nepheline-bearing rocks (e.g., ekerite and lardalite, respectively)...subalkalic magmas by contamination. For example, nepheline-bearing rocks were reported to have formed locally...volcanic associations, the content of normative nepheline, if any, in the parental basalts is usually very | | | Journal (article/letter/editorial) | | and Economic Geology Tohoku University, Sendai, Japan Abstract: Hornblende gabbroic inclusions are often...gabbroic inclusions in calc-alkali rocks in Central Japan. These inclusions in both kinds of volcanic rock...rocks at Kujiranami, Niigata Prefecture, and Shigarami, Nagano Prefecture, and also from alkali olivine...olivine basalts at Ichinomeg ata, Akita Prefecture. These localities of gabbroic inclusions are shown in Figure...of gabbroic inclusions at Kujiranami, Niigata Prefecture, is described by Kawano (1943) in detail. Although |  | | Journal (article/letter/editorial) | | Southwestern Japan Takehiro Koyaguchi Geological Institute, University of Tokyo, Hongo, Tokyo 1t 3, Japan Abstract...dacites from the Abu monogenetic volcano group, SW Japan, (composed of more than 40 monogenetic volcanoes)...Faculty of Science, Ehime University, Matsuyama 790, Japan Introduction Evidence for magma mixing has been...maps published by Yamaguchi Prefecture (1968) and Mineral Mining Agency of Japan (1973). Numbers are sample...basalts o f the A b u monogenetic volcano group, Japan. The andesites and dacites c o m m o n l y contain |  | | Journal (article/letter/editorial) | | orthopyroxenite xenolith from Takashima, Southwest Japan: silica enrichment of the mantle by evolved alkali...fragments of Group I from Takashima, Southwest Japan. Orthopyroxenite veinlets, some of which contain...Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan e-mail: ultrasa@kenroku.kanazawa-u.ac.jp pyroxenites...peridotite at high pressures (e.g., Nakamura and Kushiro 1974; Mibe et al. 2002), and can enrich overlying...by alkali basalt erupted at Takashima, Southwest Japan. We present their detailed petrological and geochemical |  | | Journal (article/letter/editorial) | | June 2016, At: 02:56 THE GEOLOGICAL SOCIETY OF JAPAN, SELECTED PROCEEDINGS AND ABSTRACTS OF PAPERS READ...plutonic igneous activity in the Kasagi area, Kyoto Prefecture (by I k uo HARA) *Gefilge analysis of the Ryoke...Yamaguchi Prefecture (by Yoshihiko OKAMURA) *Granitization of the RyOke zone in Mie Prefecture (by Hajime...(by Yoshio SUZUKI) *Granites southeast of Keifu City (Ushio FUJIMOTO and two others) Petrologic study...spring area (by Tokuz5 SOMA) *On the granites in Hiroshima and Shimane prefectures (by Hironao YOSHIDA) Granitic |  | | Journal (article/letter/editorial) | | SEPTEMBER OCTOBER, 1964 FROM ,{LKALINE ROCKS OF JAPAN KUN-Icnrno Aorr,1 InsLitute oJ Mineralogy, Petrologyand...rocks, which belong to the alkaline rocks from Japan, have been separated and analyzed chemically. All...studies of clinopyroxenes from the alkaline rocks of Japan, Morotu (Yagi, 1953), and Pantelieria (Carmichael...clinopyroxenesfrom the alkali basalt-trachyteseriesof Japan. The principal purposeis to establish crystallization...PErRoGRApHrcFEATURES Most Cenozoicvolcanic rocks of Japan beiong to the tholeiitic, high alumina-basalt,or |  | | Journal (article/letter/editorial) | | AR409-FM ARI 29 March 2010 12:13 EA38CH01-Kushiro ARI ANNUAL REVIEWS 23 March 2010 12:29 Further...Ikuo Kushiro Department of Earth and Planetary Science, University of Tokyo, Tokyo 113-0033, Japan; email:...evolution of Earth and other planets. 1 EA38CH01-Kushiro ARI 23 March 2010 12:29 INTRODUCTION Annu...study differentiated dolerite sills in northern Japan. At that time, fractional crystallization of basalt...understand the origin of basalt magma and perform a 2 Kushiro Annu. Rev. Earth Planet. Sci. 2010.38:1-16. Downloaded |  | | Journal (article/letter/editorial) | | SILICA-UNDERSATURATED PORTION OF THE SYSTEM NEPHELINE – KALSILITE – SiO2 AT 2 GPa [P(H2O) = P(Total)]... Allahabad 211002, U.P., India Abstract The nepheline (Ne) – kalsilite (Kls) – sanidine (Sa) – albite...by the intersection of the join nepheline–sanidine with the nepheline–feldspar cotectic line occurs at...jadeite along with feldspathoid and feldspar in nepheline syenites arises because the bulk composition of...a high pressure. Keywords: phase equilibria, nepheline, kalsilite, quartz, 2 GPa [P (H2O) = P (Total)] |  | Pascal, M.-L., Katona, I., Fonteilles, M., Verkaeren, J. (2005) RELICS OF HIGH-TEMPERATURE CLINOPYROXENE ON THE JOIN Di CaTs WITH UP TO 72 mol.% Ca(Al,Fe3+)AlSiO6 IN THE SKARNS OF CICLOVA AND MAGUREAUA VATEI, CARPATHIANS, ROMANIA. The Canadian Mineralogist, 43 (3) 857-881 doi:10.2113/gscanmin.43.3.857 | Journal (article/letter/editorial) | | Wiechmann 1995), monzonites and monzodiorites at Kushiro, Japan (Numano 1978, 1979), at Monzoni, Italy (Tilley...skarns have been reported, e.g., at the Kagata mine, Japan (Shimazaki & Yamanaka 1973) and Skye (Tilley 1948...in CHX, Gh69 in VT55). The former presence of nepheline in UCV51 is suggested by the abundance of thomsonite...thomsonite, a common product of alteration of nepheline, and the presence of an inclusion of primary microsommite...plagioclase in favor of nepheline and the CaTs component of pyroxene (nepheline – plagioclase – Al-rich |  | | Journal (article/letter/editorial) | | Rocks by i. KUSHIRO and H. KUNO Geological Institute, University of Tokyo, Tokyo, Japan INTRODUCTION...including tholeiite, alkali olivine basalt, and nepheline basalt were subtracted from the average composition...at intermediate depths, and that of group C (nepheline basalt) at greater depths. Even if the upper mantle...rather uniform mineralogy and chemistry. One of us (Kushiro, 1961) suggested that the tholeiite magma is generated...high-alumina basalt, alkali olivine basalt, and nepheline basalt magmas are generated by partial melting |  | | Book (volume) | | Titanaugite showing sector (hourglass) zoning, nepheline dolerite, Lobauer Berg, Saxony. Crossed polars...The Chemical Society of Japan for diagram from Bulletin Chemical Society of Japan: Chapman & Hall Ltd for...White (1964) (see also Coleman et al., 1965) ; Kushiro (1962): particularly in relation to the Tschermak's...K-1., J964. Clinopyroxenes from alkaline rocks of Japan. Amer. Min., 49, 1199-1223. Berman, H., 1937. Constitution...(Freeman). Kushiro, L, 1962 Clinopyroxene solid solutions. Part I. The CaAl 2 SiO6 component. Japan. J. Geol |  | | Journal (article/letter/editorial) | | through lherzolite, wehrlite and dunite, gabbro, to nepheline and sodalite syenite. In some localities Ti-amphibole-bearing...representing the most evolved liquids on Anjouan are nepheline and sodalite syenites. Origin of Xenoliths from...Philpotts, 1970). 4. Discussion The sodalite- and nepheline-syenite xenoliths are taken as evidence for evolved...transitions (Green and Ringwood, 1970; Kushiro et al., 1968; Kushiro, 1969), the garnet peridotite source...Summary of the Conclusions a) The sodalite- and nepheline-syenite xenoliths represent evolved high-level |  | Imaoka, T., Nakashima, K., Kamei, A., Itaya, T., Ohira, T., Nagashima, M., Kono, N., Kiji, M. (2014) Episodic magmatism at 105Ma in the Kinki district, SW Japan: Petrogenesis of Nb-rich lamprophyres and adakites, and geodynamic implications. Lithos, 184. 105-131 doi:10.1016/j.lithos.2013.10.014 | Journal (article/letter/editorial) | | Episodic magmatism at 105 Ma in the Kinki district, SW Japan: Petrogenesis of Nb-rich lamprophyres and adakites...Science, Yamaguchi University, Yamaguchi 753-8512, Japan Department of Earth and Environmental Sciences,...Yamagata 990-8560, Japan c Department of Geoscience, Shimane University, Matsue 690-8504, Japan d Research Institute...Science, 1-1 Ridai-cho, Kita-ku, Okayama 700-0005, Japan e Water and Geo-tech Engineers, Nissaku Co., Ltd...330-0854, Japan f Gakken School, Kono Building, 27-17 Takashima-cho, Numazu 410-0056, Japan g Minoo-higashi |  | | Journal (article/letter/editorial) | | Sakuyama and I. Kushiro Geological Institute, University of Tokyo, Tokyo 113, Japan Abstract. Experiments...CaO Na20 K20 H 2 0 -+ Total M. Sakuyama and I. Kushiro: Vesiculation of Hydrous Andesitic Melt 61.7 15...Onioshidashi lava of A s a m a volcano, central Honshu, Japan. The analysis is given in Table 1. Finely ground...experiments were the same as those described by Kushiro (1976). For reducing the temperature gradient within...vesicles is about 10 j,tm M. Sakuyama and I. Kushiro : Vesiculation of Hydrous Andesitic Melt 63 20 |  | | Journal (article/letter/editorial) | | nephelinites with reference to the system diopside nepheline under variable P T conditions in the presence...Hodogaya ku, Yokohama 240 8501, Japan The join diopside(Di) nepheline(Ne)was studied to determine the... but beyond the composition Di Ne toward the nepheline rich side,thesolidusisreached at 1200±10° C. Meliliteisabsent... In the run at 15kbar,melilite coexists with nepheline and diopside but this phase disappears in the...Necutsthrough theprimaryphasevolumesofdiopside , nepheline and amphibole (Amph)with a pseudoeutectic at Di |  | | Journal (article/letter/editorial) | | Faculty of Integrated Arts and Sciences, Hiroshima University, Japan, 2 Faculty of Science, The University...Study of the Earth's Interior, Okayama University, Japan With 6 Figures Received 22 December 1990; accepted...partial melting of mantle peridotites (O'Hara, 1968; Kushiro, 1969), and its chemistry may bear information...JEOL733 superprobe at the Faculty of Science, Hiroshima University. Analytical conditions are: 15 kV accerelation...xenoliths have been reported from Ichinomegata, Japan (Takahashi, 1980a), in which the high CaO concentrations | | | Journal (article/letter/editorial) | | system diopside-acmite-nepheline low oxygen Kosuke Institute of Ohtani Nepheline component (NaFeSi2O6)...Di40Ac40Ne20 as at second nepheline The 1,050•Ž. phase, (<1,150•Ž) Liquidus nepheline data (Ne, on the...system, (Schairer, and at the 10-12 each Nepheline, diopside(Di, (1963), this examined The med...Calcuim-sodium CaMgSi2O6)-acmite(Ac, and was Geology, Japan clinopyroxene. Keywords: been the of Economic...Adress: Nagoya Institue of Technology, Nagoya 466, Japan (Manuscript received, February 25, 1992; accepted |  | | Journal (article/letter/editorial) | | clinopyroxene, alkali and plagioclase feldspars, nepheline and leucite by using the appropriate average compositions...fine grained titanaugite, leucite, ores and rare nepheline, olivine and microcrystalline glass. The leueite-phonolite...leucites show prominent signs of breakdown to nepheline and alkali feldspar similar to the leucites in...matrix consists of fine-grained titanaugite, nepheline and ores together with a microcrystalline glass...leucitite trend approaches the phonolite field (i.e. nepheline and alkali feldspar), the phonolitictephrite trend |  | | Journal (article/letter/editorial) | | EXPERIMENTAL STUDY OF THE SYSTEM DIOPSIDE – ALBITE – NEPHELINE AT P(H2O) = P(TOTAL) = 2 AND 10 KBAR AND AT P(TOTAL)...University, 156, Tokiwadi, Hodogaya-ku, Yokohama 240, Japan ALOK K. GUPTA§ National Centre of Experimental...tephrites plot in the system diopside – albite – nepheline. A study of the system under various pressures...albite-rich side of the subsystem, whereas in the nepheline-rich portion, the three-phase assemblage of Cpx...2 kbar corresponds to the composition of many nepheline-bearing mafic to felsic rocks. The present data |  | | Journal (article/letter/editorial) | | investigation of clinopvroxenes from alkalic rocks of Japan and its surrounding regions. He showed the presenceunder...dolerite from Atumi district, Japan, given in Table 6 (Katsura and Kushiro, 1961).Sincethe exact amounts...olivine-titanaugite-analcite dolerite, Atumi, Japan (Katsura and Kushiro, 1961). 4. Chemical composition of a...alkalic rocks of Morotu district. H, pyroxenes from nepheline syenites of HaliburtonBancroft district; A, field...constituents of some crystalline schistsfrom Shikoku, Japan. Aegirine-augitefrom Besshi (5) comes from magn |  | | Journal (article/letter/editorial) | | and volcanic arcs. They are subdivided into a ‘‘nepheline-normative’’ alkaline-rich, silica-poor group uniquely...the liquidus of a hypersthene-normative and a nepheline-normative ultracalcic melt results in quite distinct...410C, this occurs at 0.2 GPa and 1,220C for the nepheline-normative ultracalcic liquid. Our results in combination...at elevated mantle temperatures. Contrasting, nepheline-normative ultracalcic melts form from wehrlitic...(typically 44–47 wt%) and alkali-rich (‡3.0 wt%) nepheline-normative population exclusively found in arc |  | | Journal (article/letter/editorial) | | rocks of Japan AKIMASA MASUDA Department of Chemistry, University of Tokyo, Hongo, Tokyo, Japan* (Received... Lead isotope composition in volcanic rock8 of Japan 293 remove the remnant gaees. Bemove the cold...characterized by the alkali olivine basalt magma covers the Japan Sea side of the Japanese Islands and extends southward...some of A.R.S. (Nos. 19, 20, 21 and 22) by I. Kushiro, and two of the same rock series (Nos. 18 and 23)... Lead isotope composition in volcanic rocks of Japan 295 No. 1; augite-olivine basalt (P.R.S.), a lava |
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