 | | Journal (article/letter/editorial) | | J. Japan. Assoc. Min. Petr. Econ. Geol. 69, 343-353, 1974 "NON -CALCIFEROUS" ORTHOPYROXENE AND ITS...ITS BEARING ON THE PETROGENESIS OF ULTRAMAFIC IN SANGUN AND JOETSU ZONES ROCKS SHOJI ARAI Geological...g peridotites. In Joetsu region, central Japan, ultramafic complexes are also invaded by large amounts...orthopyroxene is also found, and petrogenesis of ultramafic complexes in the central part of the Chugoku...and lherzolite in orogenic belts, characterizes ultramafic rocks in Kamuiko tan, Joetsu, and Sangun metamorphic |  | | Journal (article/letter/editorial) | | Metamorphosed Dunite-Harzburgite Complex in the Chugoku District, Western Japan Shoji Arai Geological Institute...Faculty of Science, University of Tokyo, Tokyo, Japan Received January 16, 1975 / Accepted June 3, 1975...1975 Abstract. The Tari-Misaka ultramafic complex, which is emplaced into the Paleozoic sediments and.... Zone II olivine-talc. Zone I I I olivine-anthophyllite. Zone IV olivine-orthopyroxene. Strongly serpentinized...Petrological and mineralogical characters of the ultramafic rocks can be well explained by thermal metamorphism |  | | Journal (article/letter/editorial) | | from three Japanese ultramafic complexes, and some crystals contain anthophyllite (Pnma) lamellae. The...The Mg/(Mg + Fe) ratios of the Hayachine, Tari-Misaka, and Takase protoanthophyllites are 0.90, 0.92, and...electron-diffraction patterns. The protoanthophyllite and anthophyllite have similar compositions and orthorhombic symmetry...published data on geological and synthetic anthophyllite samples may be of misidentified materials, potentially...errors in the published stability relations of anthophyllite. We provide a method to identify protoanthophyllite |  | | Journal (article/letter/editorial) | | chesterite in contact-metamorphosed serpentinites from Japan Hiromi Konishi,1,2,3,* Peter R. Buseck,2,4 Huifang...metamorphosed serpentinites from two Japanese ultramafic complexes. The lattice constants of the proto...occur in two contact metamorphic serpentinites in Japan. The discovery of proto-varieties of wide-chain...The Hayachine ultramafic complex (4 × 2 km) of the Tohoku district, northeastern Japan, experienced contact...1986b). The Tari-Misaka ultramafic (10 × 6 km) complex of the Chugoku district, western Japan, experienced |  | | Journal (article/letter/editorial) | | d peridotite-sediment system from Nagasawa, SW Japan: implications for mobility of elements in a hydrothermal...contactmetamorphosed peridotite-sediment system from Nagasawa, SW Japan: implications for mobility of elements in a hydrothermal...d peridotite-sediment system from Nagasawa, SW Japan: implications for mobility of elements in a hydrothermal...University, 1060 Nishikawazu, Matsue, Shimane 690-8504, Japan. 2. Department of Earth Sciences, Kanazawa University...University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan. E-mail: ultrasa@staff.kanazawa-u.ac.jp 3. Present |  | | Journal (article/letter/editorial) | | University, Sendai, Japan; bCenter for Northeast Asian Studies, Tohoku University, Sendai, Japan; cDepartment...Ethiopia; dNuclear Regulation Authority, Tokyo, Japan ABSTRACT ARTICLE HISTORY Serpentinites (massive...Listvenite associated with serpentinites of smaller ultramafic lenses also contain relict chromian spinel having...a nearly complete metasomatic replacement of ultramafic rocks by magnesite, talc, and quartz to prevent...hydrothermal fluids would have infiltrated into ultramafic rocks from host calcareous sedimentary rocks |  | | Journal (article/letter/editorial) | | facies: evidence from the Happo-O’ne metaperidotites (Japan) Mohamed Zaki Khedr Æ Shoji Arai Received: 1 April...peridotite complex is situated in the northeastern part of the Hida Marginal Tectonic Zone, central Japan, characterized...Kanazawa University, Kakuma, Kanazawa 920-1192, Japan e-mail: khedrzm@yahoo.com formation of low-T, low-Ti... Forearc mantle Happo-O’ne metaperidotites Japan Introduction Upper mantle peridotites change their...peridotites. The Happo-O’ne metaperidotites, central Japan, are associated with high-P/T schists of the Renge |  | Proenza, J.A., Zaccarini, F., Escayola, M., Cábana, C., Schalamuk, A., Garuti, G. (2008) Composition and textures of chromite and platinum-group minerals in chromitites of the western ophiolitic belt from Pampean Ranges of Córdoba, Argentina. Ore Geology Reviews, 33 (1) 32-48 doi:10.1016/j.oregeorev.2006.05.009 | Journal (article/letter/editorial) | | (Argentina) were studied at Los Congos and Los Guanacos ultramafic bodies, with regard to the composition and textures...some massive chromitites from the Los Guanacos ultramafic body, and is similar to Al-rich ophiolitic chromitites...chromitites and associated metamorphosed ultramafic rocks show complex replacement and exsolution textures...hosted in a metamorphosed Neoproterozoic ophiolitic complex (640 Ma; Escayola et al., in press), located in...the ranges (Gordillo and Lencinas, 1979). The ultramafic rocks are arranged in two belts of NW–SE trend |  | Cao, Yi, Song, Shuguang, Su, Li, Jung, Haemyeong, Niu, Yaoling (2016) Highly refractory peridotites in Songshugou, Qinling orogen: Insights into partial melting and melt/fluid–rock reactions in forearc mantle. Lithos, 252. 234-254 doi:10.1016/j.lithos.2016.03.002 | Journal (article/letter/editorial) | | ACCEPTED MANUSCRIPT Abstract The Songshugou ultramafic massif is located in the eastern segment of the... highly refractory nature of these rocks with complex histories of high-temperature boninite melt generation...ubiquitous occurrences of hydrous minerals, such as anthophyllite, tremolite, Cr-chlorite, and serpentine (stable...of the mantle wedge, with the emphasis on the complex partial melting Keywords: peridotite, partial...depths. They mainly occur SC R as (1) dispersed ultramafic bodies in suture zones and orogenic belts (i |  | | Book (volume) | | original monoclinic Ca-poor pyroxene. Bushveld complex. Crossed polars x60. C. Pigeonite inverted to...of exsolved augite lamellae //(100). Bushveld complex. Crossed polars x60. D. Orlhopyroxene with exsolved...The Chemical Society of Japan for diagram from Bulletin Chemical Society of Japan: Chapman & Hall Ltd for...Fe3 +)2 SiO6 and CaTi(Al,Fe 3 +) 2 O 6 . A more complex method, involving the estimation of twelve components...K-1., J964. Clinopyroxenes from alkaline rocks of Japan. Amer. Min., 49, 1199-1223. Berman, H., 1937. Constitution |
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