 | | Journal (article/letter/editorial) | | J. Japan. Assoc. Min. P etr. Econ. Geol. 70, 305-314, 1975 MINERAL PARAGENESES OF ARGILLACEOUS XENOLITHS...AMATAKI-YAMA DISTRICTS, SOUTHWEST JAPAN MICHIO TAGIRI Department of Geology, Ibaraki HITOSHI University, Mito...gneisses. Up to this time, staurolite-bearing rocks in Japan, except the districts mentioned above, occur in...district of the Hida metamorphic belt (Ishioka and Suwa, 1956), the Furudono, Takabo-yama and 306 M....argillaceous xenoliths contain much calcic plagioclase, graphite and iron ores. Calcic plagioclase fairly euhedral | | | Journal (article/letter/editorial) | | J. Japan. Assoc. Min. Petr. Econ. Geol. 72, 205-220, 1977. TWO MODES OF OCCURRENCE OF STAUROLITE FROM...RYOKE METAMORPHIC ROCKS IN THE HAZU AREA, CENTRAL JAPAN MASAO ASAMI Department of Geological Sciences, College...Hazu area, the Ryoke metamorphic belt in central Japan . Two modes of occurrence of staurolite have been...sillimanite, garnet, plagioclase, ilmenite and graphite. This is the prevailing mode of occurrence in...sillimanite, plagioclase, andalusite, ilmenite and graphite, but with no muscovite. This is rarely found only |  | | Journal (article/letter/editorial) | | Geosciences, the University of Tsukuba, Ibaraki 305-8571, Japan Graduate School of Life and Environmental...Tsukuba, Ibaraki 305-8572, Japan 3 Institute of Geoscience, the University of Tsukuba, Ibaraki 305-8571...305-8571, Japan ABSTRACT Crystal size distributions (CSDs) provide information about the nucleation and growth...minor plagioclase, and sericitic muscovite, with graphite present in some samples. Biotite is quite abundant...point and aH2O equilibrium with graphite, was used here for graphite-bearing samples in the Silverton |  | | Journal (article/letter/editorial) | | KANENORI SUWA 2 and MI rsuo HOSHINO 3 Department of Geosciences, Faculty of Science, Osaka City University...of General Education, Chikusa-ku, Nagoya 464,3 Japan Nagoya University, (Received March 29, 1986:...muddy sediments of Japan. The kerogen fractions in two Kavirondian shales are graphite, but their graphitization...biotites represents a chemical fossil (Itihara and Suwa, 1985). Biotites from Proterozoic meta sediments...samples were collected from the Kavirondian System by Suwa and Hoshino during geological survey on the Archaean |  | | Journal (article/letter/editorial) | | Shikoku, WADA 1, MASAKI ENAMI2 and metamorphic Japan TAKERU YANAGI3 Institute of Geosciences, Faculty...of Science, Kyushu University, Fukuoka 8123 Japan (Received November 12, 1983: Accepted February...Sanbagawa metamorphic terrain, central Shikoku, Japan, in order to estimate metamorphic temperatures and...Carbon isotopic fractionation be tween calcite and graphite shows the metamorphic temperature of 460°C at...studies of carbonates from various INTRODUCTION Graphite-bearing marbles occur commonly in many regional |  | | Journal (article/letter/editorial) | | for equally fine-grained material from the Suwa mine, Japan, still another, anhydrous chemical formula...coating in a limestone cave near the Tintic Standard mine, Tintic. Associated minerals are jarosite and limonite...[simplified as Fe3þ4(PO4)3(OH)3 5H2O] Tinticite, Suwa mine Fe3þ5.95(P3.92V0.06S0.04)P4.02O19 (H2O not determined)...(OH)4 6.96H2O2) mine Tinticite, Shunomata (Fe2.99Al0.03)P3.02(P1.90V0.07As0.01)P1.98 mine O8(OH)3 3.80H2O...Finally, finegrained tinticite from the Shunomata mine, Japan, was described as (Fe2.99Al0.03)P3.02(P1.90V0 |  | Jirásek, J., Čejka, J., Vrtiška, L., Matýsek, D., Ruan, X., Frost, R. L. (2017) Molecular structure of the phosphate mineral koninckite - a vibrational spectroscopic study. Journal of GEOsciences, 62 (4) 271-279 | Journal (article/letter/editorial) | | Republic) Kociha (Slovakia) Kociha (Slovakia) Suwa Mine (Japan) Richelle (Belgium) Source this study Plášil...Oni-Ana, Japan, is koninckite present in cave sediments (Kizaki 1983 in Sakurai et al. 1987). At Suwa Mine...Mine, Japan, this mineral originates by interaction of hot hydrothermal solutions rich in Fe3+ and SO42–...suspected for koninckite formation at New Idria Mine, California, USA, although there is only a short...separated, untreated and unpolished grains fixed on a graphite holder without coating were made by back-scattered |  | | Journal (article/letter/editorial) | | area, Gifu of graphite Prefecture, H IDEKI WADA and bearing central carbonates Japan S HINYA DANA...Sciences, Nagoya University, Chikusa, Nagoya, 464 Japan (Received April 26, 1975; in revised form August...metamorphic aureole in the Kasuga area, Gifu Prefecture, central Japan. 13C/12C ratios were determined also for...suggests contact graphite that calcite becomes and regularly coexisting smaller graphite toward the...the igneous approached isotopic calcite and graphite, contact. This equilibrium during metamorphism |  | | Journal (article/letter/editorial) | | Okayama University, Misasa, Tottori-ken 682-01, Japan (Received December 14, 1993; accepted in revised...the Earth’s surface at 3800 Ma. Two samples of graphite-bearing garnet-staurolite-mica schist from sequence...major source of nitrogen in these NH:-enriched, graphite-bearing mica schists might be organic nitrogen...of the results is the high NH:-content in some graphite-bearing mica schists. 2. GEOCHEMICAL BACKGROUND...matter originally contained in sediments (Itihara and Suwa, 1985; Zhang, 1988). 3. SAMPLES AND EXPERIMENTAL |  | | Journal (article/letter/editorial) | | Faculty of Science, Osaka City University, Osaka 558, Japan and KANENORI SUWA Department of Earth Sciences...Faculty of Science, Nagoya University, Nagoya 464, Japan (Received February 21, 1984; accepted in revisedform...summarized by SIMONEN(1980). The Gulf of and K. Suwa localities sampled for this study are plotted in...Precambrian rocks in Finland and from Cretaceous rocks in Japan. tents Biotitesfrom Poslsvecokarelianigwous rock-s(A)...contents than the others. 148 1.. ltihara and Ii. Suwa 8 t 8 , I I -.+Fr--T- Biotite from Precambrian |  | Feneyrol, J., Ohnenstetter, D., Giuliani, G., Fallick, A. E., Rollion-Bard, C., Robert, J.-L., Malisa, E. P. (2012) EVIDENCE OF EVAPORITES IN THE GENESIS OF THE VANADIAN GROSSULAR 'TSAVORITE' DEPOSIT IN NAMALULU, TANZANIA. The Canadian Mineralogist, 50 (3) 745-769 doi:10.3749/canmin.50.3.745 | Journal (article/letter/editorial) | | V2O3), V-bearing rutile (up to 1.9 wt.% V2O3), and graphite. This rock is affected by calcic metasomatism...(lens I) and a calcite-scapolite-diopside-sulfides-graphite lens (lens II). This last unit is characterized...2007) of southeastern Kenya (Pohl & Niedermayr 1978, Suwa et al. 1996), northeastern and southeastern Tanzania...The presence of scapolite in southeastern Kenya (Suwa et al. 1996) and gypsum and anhydrite in northeastern...sillimanite-biotite gneiss, kyanite or sillimanite-graphite gneiss, biotite-graphite gneiss, calc-silicate rocks, quar |  | | Journal (article/letter/editorial) | | cavities in peralkaline rhyolite, Cape Ashizuri, Japan (Nakashima & Imaoka 1998); 7 material from miarolitic...cavities in the Kuiqi alkaline granite, Fujian, China (Suwa et al. 1987); 8 type-locality ecandrewsite from...Melbourne Rockwell mine, Little Broken Hill (Birch et al. 1988); 9 San Valentin mine (Birch et al. 1988)...miarolitic cavities in peralkaline granite and rhyolite (Suwa et al. 1987, Nakashima & Imaoka 1998). Ternary compositions...acetone, and calcined in air for 12 h at 800°C. Graphite was used to maintain Mn in the reduced (divalent) |  | | Journal (article/letter/editorial) | | Deposits: An Important Role of Clinopyroxene Skarn and Graphite-bearing Limestone in Precipitating Sulfide Ore...deposits which are the largest Zn-Pb producer in Japan. In the Mozumi deposit, one of main deposits in...are not found in the Tochibora deposit. Instead, graphite-bearing crystalline limestone and relatively fresh...has high graphite carbon contents relative to barren one, suggesting that the amount of graphite in the...for mineralization. It is very likely that the graphite played a role of reducing agent during the mineralization |  | | Report (issue) | | mineral col lector, was born in Kanazawa, Ishikawa Prefecture, on August 30, 1874. Soon after his graduation...at the Arakawa Mine, Akita Prefecture. In 1909, he was promoted to Director of the Mine and held. the...then that of the Director of the Yoshioka Mine, Okayama Prefecture, for about seven years altogether. He...technology in the first half of this century in Japan. He retired from the Advisory Board of the Mitsu...such volumes as " Beiträge zur Mineralogie von. Japan ", Neue Folge I and II (T. Ito, 1937), " Japanese |  | | Journal (article/letter/editorial) | | deGeochemicaland mineralogicalstudieshave shown that posit in Japan where it is found. N is a ubiquitous component of...trace, component) is poorly known. 1981; Itihara and Suwa, 1985; Milovskiy and Volynets, Experimental studies...subgreenschistfacies, and Honma, 1979 Itiharu and Suwa, 1985).The adsorpnatural NHo-bearing phyllosilicates...diagenesisand (Itihara and Honma, 1979;-ltlharaand Suwa, 1985),and metamorphism may be incorporated into...p. 75; Tissot and Welte, 1984, p. 141),whereas graphite contains only trace amounts of N. N must therefore |  | | Journal (article/letter/editorial) | | FROM CENTRAL ROCKS JAPAN Ken SHIBATA Geological Surf O, of Japan, Kawasaki (Japan} and Mamoru ADACHI...Department of Earth Sciences, Nagoya University, Nagoya (Japan) Received 30 July 1973 Revised version received...boulders from the Kamiaso conglomerate in central Japan yield well-defined Rb-Sr isochron ages of 1985 +...The oldest fossiliferous formations recognized in Japan are Silurian, and there has been much debate whether...recently there was no record of Precambrian rocks in Japan that have not been involved in a younger metamorphism |  | | Journal (article/letter/editorial) | | ..by M. Satish-Kumar et al. Shear-zone hosted graphite in southern Kerala, India: implications for CO...Mozambique metamorphic rocks, south Kenya...by K. Suwa et al. The structural evolution of the Arena Gneisses...Tani and M. Yoshida (7: Yamamoto, Osaka City University, Japan) |  | | Journal (article/letter/editorial) | | this kind of skarn ranges between carbon dioxide/graphite and hematite/magnetite buffers. It increases from...Magnetite 6 Hematite 7 Quartz 8 Calcite 9 Fayalite 10 Graphite 11 Oxygen 12 Carbon dioxide Chemical formula...744 -14.023 -12.527 Huckenholz and Yoder (1971) Suwa et al. (1976) Taylor and Liou (1978) 0.22 0.50...oxygen fugacity calculated by using Equations 8 and 9 Mine Sample Garnet X Aa Pyroxene T (~ log fo2 X...Bowman and Essene (1984) 261 Table 6 (continued) Mine Sample Pyroxene Garnet XA,I Xo, 0.462 0.351 |  | Giuliani, Gaston, Fallick, Anthony E., Feneyrol, Julien, Ohnenstetter, Daniel, Pardieu, Vincent, Saul, Mark (2011) 18O/16O and V/Cr ratios in gem tsavorites from the Neoproterozoic Mozambique metamorphic belt: a clue towards their origins?. Mineralium Deposita, 46 (7) 671-676 doi:10.1007/s00126-011-0355-6 | Journal (article/letter/editorial) | | left side). Crystals of tsavorite from the Nadan I mine in the Voi mining district (Kenya). The width of...000 ppm), and the carbon isotopic composition of graphite in quartz veins from Merelani (δ13C=−24.0±1.0‰)...metamorphic origin (Malisa 1987; Key and Hill 1989; Suwa et al. 1996) and formed during the orogenesis at...Pezinok in Slovakia (Uher et al. 2008) and at Jeffrey mine in Quebec (Wight and Grice 1982). Samples and analytical...crystal scale as exemplified by a crystal from Kikuyu mine (19.0±0.1‰, n=2) with no significant variation between |  | | Journal (article/letter/editorial) | | Variably colored grossular specimens from the Jeffrey mine in Canada have previously been featured as a Connoisseur’s...Tsavo National Park, and was granted a permit to mine the deposit. In 1973 the name tsavorite was coined...1980 Bridges opened the Scorpion mine in Taita-Taveta County. This mine continuously produced outstanding...in 2009. For six years following this tragedy the mine lay dormant, but it was reopened by his son, Bruce...tsavorite for the mineral collector. At the Scorpion mine, and in other Neoproterozoic Mozambique Metamorphic | | | Journal (article/letter/editorial) | | J. Japan. Assoc. Min. Petr. Econ. Geol. 73, 300-310, 1978. 208-240 M. Y. OLD JADEITE-GLAUCOPHANE SCHISTS...SCHISTS IN THE KUROSEGAWA TECTONIC ZONE NEAR KOCHI CITY, SHIKOKU SHIGENORI MARUYAMA Department of Earth...tectonic zone was found in the serpentinite near Kochi city. They are high P and low T schists derived from...fault zone in the Chichibu terrain in south west Japan. It runs in EW direction in the middle subbelt of...of two usually kilometer low detail. map city into their we high constituting divided of |  | | Journal (article/letter/editorial) | | exchange in the system calcite-carbon dioxide-graphite-methane-hydrogen-water vapor Y. BOTTXNQA* Scripps...and methane, and for carbon-13 exchange between graphite, calcite, carbon dioxide and methane. These fractionation...Carbon dioxide, water vapor, hydrogen, calcite and graphite The carbon dioxide partition fun&ion ratios calculated...the graphite calculation may be found in BOTTINUA (1968c). In the cases of calcite and of graphite it...between C-12 and C-13 graphite was calculated by means of the lattice dynamical graphite model of YOSHIMORI |  | | Journal (article/letter/editorial) | | 1974; Aok~ & Prinz 1974; Emdeus & Andrews 1975; Suwa eta]. 1975; Reid et aL 1975; Wallace 1975; Smith...nodules in alkali basalts at Itinome-gata, N.E. Japan. However, they entertain the possibility that the...geotherm is from (lark & Ringwood (1964) and the graphite~diamond inversion curve from Bundy et al. (1961)...Some petrographic observation,-. (Kuno & Aoki 1970; Suwa et al. 1975; Carswell t~t al. 1979) have indicated...nodule a further 3.4 Kbars away from the diamond/graphite inversion curve of Bundy et al. (1961) and hence |  | | Journal (article/letter/editorial) | | argillaceous hornfels from the Toki area, Gifu Prefecture, central Japan Akira Miyake Department of Earth Sciences...Sciences, Aichi University of Education, Kariya 448, Japan Received August 22, 1989 / Accepted November 6,...argillaceous hornfels from the Toki area, Gifu Prefecture, Japan. The cordierite crystal consists o f ' c -...southeastern part of the Toki area, Gifu Prefecture, central Japan. To the author's knowledge, this is the...in contact metamorphic rocks at Daimonji-yama, Japan. Venkatesh (1952) reported skeletal or dendritic |  | | Journal (article/letter/editorial) | | Ammonium-rich white mica relics only persist in some graphite-rich microdomains, defining the first schistosity...mica was discovered in hydrothermal deposits of Japan and termed tobelite by Higashi (1982). From that...metamorphic grades (Honna and Itihara 1981; Itihara and Suwa 1985; Duit et al. 1986; Visser 1992; Boyd and *...vector is not considered. Given the abundance of graphite, the white mica formulas were Figure 1. Distribution... and muscovite:annite ratios. Intergrowths of graphite-rich ammoniumbearing white mica, muscovite, and |
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