 | | Journal (article/letter/editorial) | | that the corundum and sapphirine are formed by incongruent melting of the plagioclase under high P ~ o is...the perfect triple junction texture with the plagioclase, or was it formed from igneous pyroxene (and...Sittampundi layered rock (JS I56) from near the sapphirine locality that is composed of about 51 ~o Anal' bytownite...49 % hornblende with a little opaque ore, the plagioclase being almost identical in composition to that...composition of the plagioclase in this intrusion, combined with the instability of calcic plagioclase under highpressure |  | ACKERMAND, D., HERD, R.K., REINHARDT, M., WINDLEY, B.F. (1987) Sapphirine parageneses from the Caraiba complex, Bahia, Brazil: the influence of Fe2+-Fe3+ distribution on the stability of sapphirine in natural assemblages. Journal of Metamorphic Geology, 5 (3) 323-339 doi:10.1111/j.1525-1314.1987.tb00388.x | Journal (article/letter/editorial) | | .I. metamorphic Geol. 1987, 5, 323-339 Sapphirine parageneses from the Caraiba complex, Bahia, Brazil:...of Fe2+-Fe3+ distribution on the stability of sapphirine in natural assemblages D. ACKERMAND, Mineralogisches...Leicester LEI 7RH, United Kingdom Abstract. Sapphirine-bearing rocks occur in three conformable, metre-size...Brazil. In the lenses there are six different sapphirine-bearing rock types, which have the following...E: F: Sapphirine, orthopyroxene; Sapphirine, cordierite, orthopyroxene, spinel; Sapphirine, cordierite; |  | | Journal (article/letter/editorial) | | Reaction Textures and Metamorphic Evolution of Sapphirine-bearing Granulites from the Gruf Complex, Italian...chemistries and textures are described from a suite of sapphirine-bearing granulites from the Gruf Complex of the...contain combinations of garnet, orthopyroxene, sapphirine, sillimanite, cordierite, biotite, quartz, spinel...spinel, corundum, staurolite, plagioclase, K-feldspar, ilmenite and rutile, in assemblages with low (usually...monomineralic reaction rims (e.g. of cordierite between sapphirine and quartz); (iii) fine-grained symplectitic |  | | Journal (article/letter/editorial) | | and Manton, W.I., 1986. A new correlation of sapphirine granulites in the Indo--Antarctic metamorphic...the Eastern Ghats Province of South India, a sapphirine-bearing granulite from Anakapalle and a charnockite...India for sapphirine formation during the late Proterozoic; other South Indian sapphirine localities...review of sapphirine localities in the Indo-Antarctic metamorphic terrain indicates that sapphirine developed...(1979a). Sapphirine localities are from summaries by Grew (1982b) and Grew (1984a) except for locality west |  | | Report (chapter) | | orthopyroxene, retrograde garnet reaction rim, and plagioclase gave an age of c. 630 Ma, which is interpreted...2004). Baba et al. (2006) reported a new sapphirine locality in the southwestern part of the Schirmacher...gneisses characterized by alternating felsic (plagioclase, K-feldspar, quartz) and mafic (biotite and amphibole)...coarse-grained plagioclase-rich (up to 10 mm in diameter) rock composed of plagioclase, garnet, clinopyroxene...small grains at the margin of coarse-grained plagioclase, and are zoned with garnet in the inner part |  | | Journal (article/letter/editorial) | | Printed in The Netherlands A new occurrence of sapphirine-bearing granulite from Podur, Andhra Pradesh...Summary We report here on a new occurrence of sapphirine bearing granulites in the high-grade granite...stable assemblage contains cordierite-biotite-sapphirine-spinel-corundum-K-feldspar. Interpretation of...K-feldspar þ H2 O sapphirine ¼ cordierite þ spinel þ corundum The P–T evolution of these sapphirine granulites... 2:2:1 and Spr7:9:3: Subscripts indicate the sapphirine end member molar ratio of MgO: Al2O3:SiO2 416 |  | | Journal (article/letter/editorial) | | garnet-bearing gabbro, Heidal, Gudbrandsdalen, Norway. Said to be between an amphibole and a pyroxene...net schist. Sel, PiUargurippiggen, Otta River, Norway. Analysis made for Goldschmidt in I915. Because...Soc. (U.S.S.R.), 91, 332. Diopsidehypersthene-plagioclase-hornblende granulite. River Anabar, Berega, Siberia...a'oo and 2"44 % Na20 in these hornblendes, the plagioclase is anorthite B. E. L E A K E 394 ON T A...%). M a c o n Co., N o r t h Carolina, precise locality u n k n o w n . Analyst, A. K e m p . A Y , A |  | | Journal (article/letter/editorial) | | et al., 1974). I I ASl2 I-_-------_ I Fig. 1. Locality map of Australia to Figs. 2, 4 and 5, respectively...Average Charnockite 85 86 89 87 88 90 91 94 92 93 Sapphirine 95 96 100 97 98 99 101 of 80 samples (Wilson...Fe, Hb 18974 Pl, Op, Fe 18978 Pl, OP, CP, 8, Fe locality, S. Quairading Mafic granulite, 41352 WA Pl, Op...region form a complex assemblage of Kdeficient plagioclase-hypersthene rocks (the Utnalanama Granulite:...with 6 “0 values of - 5.2°/oo (see Fig. 3). Sapphirine locality, south of Quairading, Western Australia (Fig |  | | Book (volume) | | 145 STAUROLITE.151 CHLORITOID.161 DATOLITE.171 SAPPHIRINE.176 EPIDOTE GROUP 183 Zoisite Clinozoisite...composition of the olivine form dunite of the type locality (Table 2, anal. 5) is F092, the average composition...passes upward into a plagioclase-rich rock at the top. As the amount of plagioclase in the unit increases...(amphibole -f spinel) — plagioclase. olivine — ortliopyroxene — garnet — plagioclase. Other variants have...garnetamphibole intergrowth, is adjacent to the plagioclase. Murthy (1958) has described coronas developed |  | | Book (volume) | | Simpson et al., 1974e). Based on K/Ar dating ofthe plagioclase phenocrysts, the basalt was dated 72 ±7 m.y....review of the essential data from this classic locality and a statement of the Tertiary history of the...granites 1st Basement Plutonites Early orogenic plagioclase granites 1st Basement Volcanics Main geosynclinal...the Red Sea is that described at Zug El Bohar locality (Fig. 5), 12 km to the south of El Qoseir, by...sediments along section line A-A' at Zug El Bohar locality, south of El Qoseir, Red Sea coast (El Shazly |
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