 | | Journal (article/letter/editorial) | | 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...granites of the Humber and Avalon zones in Gaspé (Québec) and New Brunswick is characterized by low mean...tectonic discrimination, Appalachian orogen, Canada. SOMMAIRE Des échantillons de biotite, minéral ferromagnésien...ferromagnésien dominant dans les roches granitiques des Appalaches canadiennes, ont été analysés avec une microsonde |  | | 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 |  | | Book (volume) | | crystal axes birefringence Buffers HM NNO QFM WM hematite—magnetite nickel—nickel oxide quartz—fayalite-magnetite...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; |  | | 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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