... and Ohara, Japan) and another I-S series (Shinzan, Japan) were examined. The average layer charge of the Palabora vermiculite is 0.83/O 10 (OH) 2 based on data of Inoue (1984) . The Goto rectorite is the same material as that studied by Lagaly (1979) , though our sample contains illite and pyrophyllite...

... of rock composition and W/R ratio. In order to clarify the effect of fluid chemistry on the structure and composition of I-S minerals, we compared the chemical variations of I-S minerals with those formed from similar original rocks: I-S minerals from Shinzan, Japan ( Inoue and Utada, 1983 ) and Ponza...

... and muon-radiographic observations in Showa-Shinzan lava dome, Usu, Japan : Pure and Applied Geophysics , 174 , no. 3 , 1061 – 1070 , https://doi.org/10.1007s00024-016-1430-9 . Nishiyama , R. Y. Tanaka S. Okubo H. Oshima H. K. M. Tanaka , and T. Maekawa , 2014...

... 75% illitic layers. Inoue & Utada (1983) and Inoue et al. (1987 , 1988 ) showed the presence of R2 illite (0.72–0.85) − smectite in the hydrothermal system of Shinzan (Japan). Inoue et al. (2005) described R2 illite (0.6) − smectite as an intermediate phase during diagenetic...

... calculations also lead to a better understanding of the relative stability of these minerals and yield a description at the unit-cell scale of the solid-state illitization mechanism. The studied materials belong to a hydrothermal series from the Shinzan area, Akita Prefecture, Japan. In this area...

... tuffs (Shinzan, Japan) and diagenetic bentonites (Kinnekulle, Sweden) . Clay Sci . 7 , 263 – 275 . Jardine P.M. , Zelaszny L.W. & Evans A. ( 1986 ) Solution aluminium anomalies resulting from various filtering materials . Soil Sci. Am. J . 50 , 891 – 894...

... from the Shinzan (Japan) hydrothermal area (Inoue et al. 1988 ). That study focused on the illite-growth mechanism during illitization of I-S clay having 50–0% expandable layers because of the presumption that short- and long-range ordered I-S grains with 50–0% expandable layers are immature illites...

... a complete smectite-to-illite conversion series from the Shinzan hydrothermal alteration area, Japan, in which estimates of percent expandability in I–S, based on XRD data, decreased with depth and increased laterally away from the center of the hydrothermal system. Continuous chemical changes...

... , Bloomington, Indiana . Inoue , A. and Utada , M. ( 1983 ) Further investigations of a conversion series of dioctahedral mica/smectites in the Shinzan hydrothermal alteration area, northeast Japan . Clays and Clay Minerals , 31 , 401 – 412 . Inoue , A. and Utada , M. ( 1991...

... ) Further investigations of a conversion series of dioctahedral micas/smectites in the Shinzan hydrothermal alteration area, northeastern Japan . Clays and Clay Minerals , 35 , 111 – 120 . Jepson , W.B. and Rowse , J.B. ( 1975 ) The composition of kaolinite – an electron microscope...

... . Symonds , R.B. , Mizutani , Y. , and Briggs , P.H. , 1996 , Long-term geochemical surveillance of fumaroles at Showa-Shinzan dome, Usu volcano, Japan : Journal of Volcanology and Geothermal Research , v. 73 , p. 177 – 211 . Taran , Y.A. , Hedenquist , J.W. , Korzhinsky , M.A...

... investigations of a conversion series of dioctahedral mica/smectites in the Shinzan hydrothermal alteration area, northeast Japan . Clays and Clay Minerals , 31 , 401 – 412 . Inoue , A. , Velde , B. , Meunier , A. and Touchard , G. ( 1988 ) Mechanism of illite formation during...

... 55,115 Frondini et al. (2004) Vulcano Italy 41,975 2,190 Inguaggiato et al. (2012) Miyakejima (Oyama) Japan 43,618 Hernández et al.(2001a) Satsuma-Iwojima Japan 7,300 Shimoike et al. (2002) Showa-Shinzan Japan 3,760 Hernández et al. (2006) Usu Japan 60,712...

...Shogo Komori; Shinichi Takakura; Yuji Mitsuhata; Toshiyuki Yokota; Toshihiro Uchida; Masahiko Makino; Yosuke Kato; Kazuya Yamamoto ABSTRACT Southwestern Hokkaido, Japan, is characterized by numerous Quaternary volcanoes and geothermal areas. At the same time, the region hosts various critical...

... alteration in a 4000-year-old ash soil of St. Vincent . American Journal of Science , 258 , 354 – 368 . Inoue , A. and Utada , M. ( 1983 ) Further investigations of a conversion series of dioctahedral mica/smectites in the Shinzan hydrothermal alteration area, Northeast Japan . Clays...

.... ( 1983 ) Further investigations of a conversion series of dioctahedral mica-smectites in the Shinzan hydrothermal alteration area, Northeast Japan . Clays Clay Miner . 31 , 401 – 412 . Inoue A. & Utada M. ( 1989 ) Mineralogy and genesis of hydrothermal aluminous clays...

... which, expressed as an equivalent concentration of NaCl, range from very low at Showa-shinzan, Japan, (0.16 wt% NaCl) to 3.95% NaCl at Tolbachik (Kamchatka, Russia). Sodium dominates the alkaline and alkaline earth concentrations but totals only about 3 percent (i.e. 0.1 NaCl equiv ) and the remainder...

... scientists and technical staff associated with the facilities. In Japan, the head of the lab is highly respected and his advice is rarely discussed, which was a bit strange for me since French students often challenge their advisors and are encouraged to express their own views. Because Ozima had spent...

... in an enriched mantle beneath Etna, Sicily . Earth Planet Sci Lett 153 : 57 – 66 Nemoto T ( 1957 ) Report on the geological, geophysical and geochemical studies of Usu volcano (Showa Shinzan) . Geol Surv Japan 170 : 1 – 24 Nishio Y , Sasaki S , Gamo T , Hiyagon H...