 | Bosse, ValĆ©rie, FĆ©raud, Gilbert, BallĆØvre, Michel, Peucat, Jean-Jacques, Corsini, Michel (2005) RbāSr 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 GeĢosciences Azur (UMR-CNRS 6526), UniversiteĢ...Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France c GeĢosciences Rennes (UMR-CNRS 6118), UniversiteĢ...UniversiteĢ 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) | | 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...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...Ile de Groix Phengite Quartz Chloritoid Plagioclase Chlorite Glaucophane Pyroxene Rutile/ilmenite Sphene/rntile...schists a n d a s s o c i a t e d rocks of I l e de Groix h a v e been r a t h e r few. B a r r o i s (1884) |  | | Journal (article/letter/editorial) | | a result of ļ¬uidārock interactions (Ile de Groix, France) A. El Korh a,ā, S.Th. Schmidt a, T. Vennemann...Department of Mineralogy, University of Geneva, Rue des MaraĆ®chers 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 HPāLT metamorphic rocks of the Ile de Groix were analysed to characterise geochemical ļ¬ngerprints...variety of metamorphic assemblages on the Ile de Groix is thus directly related to the pre-HP rock composition |
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