 | Bosse, ValĂ©rie, FĂ©raud, Gilbert, BallĂšvre, Michel, Peucat, Jean-Jacques, Corsini, Michel (2005) RbâSr and 40Ar/39Ar ages in blueschists from the Ile de Groix (Armorican Massif, France): Implications for closure mechanisms in isotopic systems. Chemical Geology, 220 (1) 21-45 doi:10.1016/j.chemgeo.2005.02.019 | Journal (article/letter/editorial) | | ages in blueschists from the Ile de Groix (Armorican Massif, France): Implications for closure mechanisms... 5, rue Kessler, 63038 Clermont Ferrand Cedex, France b GeÌosciences Azur (UMR-CNRS 6526), UniversiteÌ...Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France c GeÌosciences Rennes (UMR-CNRS 6118), UniversiteÌ...UniversiteÌ de Rennes 1, 35042 Rennes Cedex, France Received 1 October 2003; accepted 28 February 2005 Abstract...from the HP/LT rocks from the Ile de Groix (Armorican Massif, France), which represents one of the few occurrences |  | | Journal (article/letter/editorial) | | facies rocks from the ile de Groix, Armorican Massif (northwest France) J. BERNARD-GRIFFITHS, M.S.N....Structurale des Socles, CNRS LITHOS Universitd de Rennes 1, 35042 Rennes C~dex (France} Bernard-Griffiths...blueschist facies rocks from the he de Groix, Armorican Massif (northwest France). In: W.L. Griffin (Editor), Second...Sampling includes the main rock types exposed on Groix, concentrating on those metabasic rocks with least...alkali-basalt debris. The volcanicsedimentary assemblage on Groix is suggestive of ocean-island magmatic activity |  | | Journal (article/letter/editorial) | | collected from three outcrops on Ile de Groix (Morbihan) France, each being not more than one kilometer...and petrology of the Ile de Groix and the neighbouring coastal area of France has been examined most recently...the Southern Britany coast. The geology of Ile de Groix itself is complex in structural, metamorphic and...particular outcrops studied (at Pointe de Surville and Pointe des Chats and the harbour of Locmaria) were...meters in outcrop extent) which was also on Pointe des Chats. This is near the unit ~1 of C o G ~ (1960 |  | | Journal (article/letter/editorial) | | Deerite from Ile de Groix, Brittany, France K. DUDE~ Academy of Mining and Metallurgy, Institute of Geology... Curie, 4 place Jussieu, 75252 Paris Cedex 05, France Abstract Deerite has been found in layers of Fe-rich...described in the literature show that the Ile de Groix deerites most closely resemble the Mn-poor, alpine...Sifnos deerites. The P - T conditions of the Ile de Groix metamorphism do not conform with the stability field...metamorphism. KEYWORDS: deerite, metamorphism, Brittany, France Introduction THE hydrous iron-rich silicate |  | | Journal (article/letter/editorial) | | Schists and Associated Rocks from Ile de Groix, Brittany, France A.A. M a k a n j u o l a * a n d R.A. Howie...were obtained from the metamorphic rocks of lie de Groix, and their chemical, physical, optical and X-ray...in a schist iron-alumininmchlorites react with quartz to give almandine and Mg-rich chlorites. The Fe2+:Mg...composition of the glaucophane schists of Ile de Groix is given i n T a b l e 1. N i n e t y - s e v e...composition of the glaucophane schists of Ile de Groix Phengite Quartz Chloritoid Plagioclase Chlorite Glaucophane |  | | Journal (article/letter/editorial) | | a result of ïŹuidârock interactions (Ile de Groix, France) A. El Korh a,â, S.Th. Schmidt a, T. Vennemann...Department of Mineralogy, University of Geneva, Rue des MaraĂźchers 13, CH-1205 Geneva, Switzerland Institute...6118), University of Rennes 1, 35042 Rennes Cedex, France a r t i c l e i n f o Article history: Received...different HPâLT metamorphic rocks of the Ile de Groix were analysed to characterise geochemical ïŹngerprints...variety of metamorphic assemblages on the Ile de Groix is thus directly related to the pre-HP rock composition |  | | Journal (article/letter/editorial) | | gueiss. The limestone contains microcline, albite, quartz, biotite, muscovite, tourmaline, hornblende, garnet...described by A. v. Lasaulx, from the Pointe des Chats, Brittany, gave the following results :SiO,. Also3...was of a violet colour, and was associated with quartz, tremolite, and piemontite. Xapphirine from Fiskenas |  | | Book (volume) | | MINERALOGIE DE LA FRANCE ET DE SES COLONIES DESCRIPTION PHYSIQUE ET CHIMIQUE DES MINĂRAUV;â ĂTUDE DES CONDITIONS...bibliotheek iĂ«k RimstsusEĂŻ:^ Câ', Ă©diteurs RLE DES SAINTS-PĂRES, 15 v:;^ CEOLG;!' ceolg^ Woogi. KeflxĂźracht...J ßß y. .r âąL i INTRODUCTION La lecture des tiâaitĂ©s de minĂ©ralogie les plus rĂ©cents, lâĂ©tude...collections publiques tendent Ă faire considĂ©rer la France comme fort pauvre en minĂ©raux. Le fait paraĂźt Ă©tiange...longtemps que ce a recueillir tous les gie de la France. J ai visitĂ© la ai fait m a frappĂ© et c|ue jâai |
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