 | | Journal (article/letter/editorial) | | Vol. 41, pp. 1381-1396 (2003) COMPOSITION OF BIOTITE FROM GRANITIC ROCKS OF THE CANADIAN APPALACHIAN...Ottawa, Ontario K1N 6N5, Canada JOSEPH B. WHALEN Geological Survey of Canada, 601 Booth Street, Ottawa...Ottawa, Ontario K1A 0E8, Canada ABSTRACT Biotite, the dominant ferromagnesian mineral in Paleozoic granitic...values. In the biotite quadrilateral (annite –siderophyllite – phlogopite – eastonite), biotite from A-type...granites of the Humber and Avalon zones in Gaspé (Québec) and New Brunswick is characterized by low mean |  | | Journal (article/letter/editorial) | | and 40 Ar–39 Ar geochronology of the 583 Ma Baie des Moutons syenite, Quebec Phil J.A. McCausland a,∗ ...Sciences, University of Western Ontario, London, ON, Canada N6A 5B7 Department of Geological Sciences, University...dipole Low temperature demagnetization Hornblende Biotite a b s t r a c t Laurentia has unclear paleogeographic...geochronologic results from the mid-Ediacaran Baie des Moutons (Mutton Bay) syenite, exposed in a failed...of the Mutton Bay syenite bear hornblende and biotite grains which provide overlapping 40 Ar–39 Ar plateau |  | | Journal (article/letter/editorial) | | FELDSPAR MINERALOGY OF THE KWANDONKAYA ANOROGENIC COMPLEX, NIGERIAN A-TYPE GRANITE PROVINCE Emmanuel M. SAKOMA§...H3A 2A7, Canada Abstract The alkali feldspars in members of the epizonal Kwandonkaya complex, one of...frozen in a state of arrested reaction as the complex cooled. High sanidine solid-solution, the liquidus...in the melt. The feldspars of this metaluminous complex define a transition from a hypersolvus to a subsolvus...Nigeria. Keywords: Kwandonkaya, epizonal nested complex, metaluminous A-type granite, orthoclase perthite |  | | Journal (article/letter/editorial) | | Lakehead Ulllverslty, Thunder Bay, Ont P7B 5£1 (Canada) (Received December 19, 1989; accepted March 26...composition of amphiboles may occur in a given complex. A subtrend found only In oversaturated complexes...mainly of arfvedsonitic composition. Oi(A) Rallier-du-Baty Peninsula complexes Five overlapping ring complexes...variation of amphiboles from the Topsalls-St. Lawrence complex (Strong and Taylor, 1984) illustrated III (a) the...arfvedsomte. 138 R H MITCHELL (A) RALLIER - DU - BATY (8) FLOWERS BAY Fig. 2. Compositional variation |  | | Journal (article/letter/editorial) | | www.elsevier.com/locate/epsl Applications of biotite inclusion composition to zircon provenance determination...Keywords: Hadean Archean zircon mineral inclusion biotite detrital zircon a b s t r a c t Detrital zircons...that inclusions of biotite in magmatic zircon are compositionally well-matched to biotite in the source rock...magmatic biotite from different source rocks and tectonic settings, suggesting that biotite inclusions...studies, we find that the FeO∗ /MgO ratio of magmatic biotite from continental arcs, collisional, and within-plate |  | | Journal (article/letter/editorial) | | the largest peraluminous granitoid complex of Nova Scotia, Canada (e.g. McKenzie & Clarke 1975; MacDonald...succession is biotite granodiorite, biotite monzogranite, leucomonzogranite and muscovite-biotite monzogranite;...pegmatites, but is most prominent in the muscovite-biotite monzogranite and in the coarse-grained leucomonzogranite...SMB (Fig. 1a, c), mainly consists of muscovite-biotite monzogranite and minor leucomonzogranite. Cordierite...1999). The samples investigated are muscovite-biotite monzogranites and aplites from the HP and the MB |  | | Journal (article/letter/editorial) | | the largest peraluminous granitoid complex of Nova Scotia, Canada (e.g. McKenzie & Clarke 1975; MacDonald...succession is biotite granodiorite, biotite monzogranite, leucomonzogranite and muscovite-biotite monzogranite;...pegmatites, but is most prominent in the muscovite-biotite monzogranite and in the coarse-grained leucomonzogranite...SMB (Fig. 1a, c), mainly consists of muscovite-biotite monzogranite and minor leucomonzogranite. Cordierite...1999). The samples investigated are muscovite-biotite monzogranites and aplites from the HP and the MB |  | | Journal (article/letter/editorial) | | Sciences, 140 Louis Pasteur, Ottawa, Ontario K1N 6N5, Canada ABSTR ACT An orbicular diorite from Fisher Lake...orthopyroxene, magnetite, ilmenite, amphibole and minor biotite. Orbicule shells number from a few, to >40. A typical...K2O 2O5 LOI Total V Cr Co Ni Zn Rb Sr Y Zr Nb Ba La Ce Nd Pb Th U 96-OH-21 96-OH-12 Avg OH3 Avg CL4...diopside phenocrysts which they ascribed to a ‘complex crystallization history’ and magma mixing. Eichelberger...liquid moves towards the equilibrium composition (Le), i.e. precipita- REVERSE ZONING IN ORBICULES |  | | Journal (article/letter/editorial) | | given modal proportion of biotite, as the magnesium content of the biotite increases (as would result...Brunswick, Canada; the Zn-Cu-Pb volcanogenic massive sulfide (VMS) deposit of Kidd Creek, Ontario, Canada; the...partitioned into ferromagnesian phases such as biotite, pyroxene, and amphibole. Researchers such as Moura...volatile phases present in these systems. Given that biotite and amphibole are the most common ferromagnesian...the I-type scenario, the magma crystallizes both biotite and amphibole as the primary ferromagnesian minerals |  | | Book (volume) | | the relative stabilities of minerals in quite complex chemical systems. In geochronology, the K—Ar and...the present volume. Amphiboles are notoriously complex chemically and their nomenclature was the subject...Mineral Sciences; Mineralogical Association of Canada for diagrams from Canadian Mineralogist, Elsevier...American Mineralogist; National Research Council of Canada for diagrams from Canadian Journal of Earth Sciences;...K. 1966. Messung des Ultrarot-Pleochroismus von Mineralien VI. Der Pleochroismus des OH- Streckfrequenz |  | | Book | | USA Dr. WILLIAM L. BROWN CRPG Centre National de la Recherche Scientifique B. P. 20 F-54501 Vandreuvre-Ies-Nancy...impractical to continue adding all the new data to the complex figures, especially of Chapter 14, but all critical.... . . . . . . . . . . . . . 71 73 Chapter 5 Complex Crystal Structures 76 5.1 5.2 76 5.3 5.4 Summary...is impossible to relate structural features of complex substances like feldspar to the Schrodinger wave...spherical One: distorted M-cation positions (b) Complex feldspar structures Orthoclase - a K-rich feldspar |
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