 | Sumino, Hirochika, Notsu, Kenji, Nakai, Shun'ichi, Sato, Masanori, Nagao, Keisuke, Hosoe, Morikazu, Wakita, Hiroshi (2004) Noble gas and carbon isotopes of fumarolic gas from Iwojima volcano, Izu–Ogasawara arc, Japan: implications for the origin of unusual arc magmatism. Chemical Geology, 209 (1) 153-173 doi:10.1016/j.chemgeo.2004.05.002 | Journal (article/letter/editorial) | | isotopes of fumarolic gas from Iwojima volcano, Izu–Ogasawara arc, Japan: implications for the origin of...School of Science, University of Tokyo, Hongo, Bunkyo, Tokyo 113-0033, Japan b Earthquake Research Institute...Institute, University of Tokyo, Yayoi, Bunkyo, Tokyo 113-0032, Japan c Earth and Ocean Sciences, National Defense...Kanagawa 239-8686, Japan Received 27 January 2004; accepted 10 May 2004 Abstract Iwojima volcano, located on...on the southernmost part of the Izu – Ogasawara arc, is characterized by a magma chemistry, which differs |  | | Journal (article/letter/editorial) | | 1009-1018, 2 FIGS., OCTOBER 1948 PETROGRAPHY OF IWO JIMA BY GORDON A. MACDONALD CONTENTS Page 1009 1009...Tuff Motoyama intrusive bodies Lava of Suribachiyama Suribachiyama cinder cone Syenite inclusions Fumarolic...map of Iwo Jima 2. Map showing location of Iwo Jima Page 1010 1013 ABSTRACT The rocks of Iwo Jima are...some rocks to a mixture of opal and clay minerals and have cemented tuff with opal, calcite, zeolite,...petrography of Iwo Jima (Sulfur Island) has been discussed by Tsuya (1936)1. The writer can add little to Tsuya's |  | | Journal (article/letter/editorial) | | J. Japan. Assoc. Min. Petr. Econ. Geol. 74, 1-15, 1979. PETROLOGICAL STUDY OF THE SOUTH YUBARA QUARTZ...QUARTZ GABBROIC MASS, OKAYAMA PREFECTURE, SOUTHWEST JAPAN MASAKATSU Geothermal The Research South Sangun... Yubara of in inner the divided tonalitic to part into part of that ilmenite, facies the...minerals of The type the composed facies . Japan. facies The similar biotite, is the color...would porphyritic be and attributed have lower to fugacity. In the Yubara area the outline of INTRODUCTION |
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