 | | Journal (article/letter/editorial) | | of osumilite and andalusite ash layer in Niigata KATSUKI KUROKAWA*, Prefecture, HIROMI * Department...KONISHI** Earth and , Faculty School of Central Japan YOSHIMI FUJIWARA*** Science University, ** Graduate...Science of Education, 950-21, and Niigata Japan Technology , Niigata Niigata *** Meike 950-21...crystals from layer mudstone and and and ash Prefecture, Niigata 2-6cm thick. School combined Osumilite...data for at osumilite and of osumilite and andalusite has not been reported from the volcanic date |  | | Journal (article/letter/editorial) | | metamorphic Geol. 1987, 5, 439-450 Sillimanite and. andalusite produced by base-cation leaching and contact...peraluminous hornfelses, containing cordierite, andalusite, sillimanite, biotite, pyrite and pyrrhotite...probably undergone similar leaching. Key-words: andalusite; base-cation leaching; contact metamorphism;...have been contact metamorphosed to cordierite-, andalusite-, sillimanite-bearing hornfelses, and occur adjacent...in polygonal quartz, feldspar, cordierite and andalusite (bottom) devoid of sillimanite. Plane-polarized |  | | Journal (article/letter/editorial) | | with or without garnet, cordierite and residual andalusite. Many of the folia appear to be limbs of crenulation...with or without garnet, cordierite or residual andalusite (Fig. 1). Some segregating process evidently...containing minerals such as quartz, feldspar, garnet, andalusite, staurolite and cordierite, with smaller amounts...replacement by retrograde muscovite of porphyroblastic andalusite rather than adjacent fibrous sillimanite (e.g...deformation of porphyroblastic andalusite and fibrous sillimanite, in that andalusite adjacent to the high-strain |  | | Report (chapter) | | that deformed lapilli tufts in the English Lake District were initially diagenetically compacted normal... Some may represent deformed pseudomorphs of andalusite, but many appear to be residual concentrations...domains) anastomosing around Q domains consisting of andalusite porphyroblasts and their strain shadows, some...minerals such as cordierite, garnet, staurolite, andalusite and K-feldspar commonly grow during prograde...al. (1995) observed evidence for the reaction andalusite + biotite +water = staurolite + chlorite + muscovite |  | | Report (volume) | | hydrous strontium borate from the Kramer Borate District, California. USGS Prof Paper 424-C:294-297 Erd...paragenesis of the Little Three mine pegmatites, Ramona District, San Diego County, California. Mineral Rec 20:101-127... from the Little Three mine pegmatite, Ramona District, San Diego County, California. Am Mineral 76:1998-2002...Matsubara S (1980) Manganese borate minerals from Japan. Kobutsugaku Zasshi 14 (Tokubetsugo 3):86-97 (in...Nifontovite and olshanskyite from Fuku, Okayama Prefecture, Japan. Mineral Mag 58:279-284 Kusachi I, Henmi C | | | Report (volume) | | hydrous strontium borate from the Kramer Borate District, California. USGS Prof Paper 424-C:294-297 Erd...paragenesis of the Little Three mine pegmatites, Ramona District, San Diego County, California. Mineral Ree 20:101-127... from the Little Three mine pegmatite, Ramona District, San Diego County, California. Am Mineral 76:1998-2002...Matsubara S (1980) Manganese borate minerals from Japan. Kobutsugaku Zasshi 14 (Tokubetsugo 3):86-97 (in...Nifontovite and olshanskyite from Fuku, Okayama Prefecture, Japan. Mineral Mag 58:279-284 Kusachi I, Henmi C |
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