 | | Journal (article/letter/editorial) | | andalusite ash layer in Niigata KATSUKI KUROKAWA*, Prefecture, HIROMI * Department of from the Pliocene...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... first reported was grains ash to by Miya Japan the silicic The ash are The and is in andalusite |  | | Journal (article/letter/editorial) | | Contact metamorphism adjacent to a porphyritic quartz-monzodiorite at Kentucky, New South Wales, Australia...manite anastomose between lenticular grains of quartz and feldspar and truncate igneous zoning in plagioclase...adjacent to a Late Permian stock of porphyritic quartz monzodiorite (Fig. 1). We suggest that the aluminous...plagioclase, up to 5 mm in length, in a groundmass of quartz, plagioclase, K-feldspar and biotite, all with...of the monzodiorite pluton. Both the porphyritic quartz monzodiorite and the metamorphosed leucogranite |  | | Journal (article/letter/editorial) | | lenticular pods of coarser-grained aggregates rich in quartz, feldspar and biotite, with or without garnet,...anastomose between elongate pods of coarse-grained quartz, K-feldspar, plagioclase and biotite, with or without...in which muscovite is stable in the presence of quartz, mica (especially muscovite) commonly is strongly...largely co-axial strain, containing minerals such as quartz, feldspar, garnet, andalusite, staurolite and cordierite...facies), muscovite is unstable in the presence of quartz, and biotite is commonly reduced in amount, the |  | | Report (chapter) | | show evidence of solution of quartz in P domains and addition of quartz in Q domains. The problem is...Local compositional changes may develop adjacent to quartz veins, and some aluminous ('pseudopelitic') mineral...deposited in adjacent low-strain domains rich in quartz, or whether it has been removed from the local... mesoscopic (metre) scale, perhaps to form the quartz veins that are so abundant in slate belts. The...around Q domains that commonly consist of detrital quartz grains, with feldspar in some Fig. 1. Slate and |  | | Report (volume) | | magmas: Dravite 376 Tourmaline stability in magmas: Quartz-tourmaline assemblages 376 Tourmaline stability...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 | | | Report (volume) | | :cceeeeeeeeeeees Tourmaline stability in magmas: Quartz-tourmaline assemblages...... Tourmaline stability...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 |
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