| | Journal (article/letter/editorial) | Laboratoire de Structure et PropriĂ©tĂ©s de l’Etat Solide, UniversitĂ© des Sciences et Technologies de Lille,...orthopyroxene crystals of the Johnstown meteorite. Orthopyroxene from this meteorite has been previously studied...who described exsolution products as (i) frequent augite exsolution lamellae several unitcell wide, epitactically...Johnstown meteorite. Their TEM observations confirmed the presence of both, thin (100)Opx augite lamellae...products. However, it is still unknown whether the augite lamellae and/or the Guinier-Preston zones affect | | | Journal (article/letter/editorial) | composition Wo4En60Fs36, contains thin exsolved augite lamellae but no Guinier-Preston zones. A series...“normal” kinetic behaviour. The presence of Ca and augite lamellae in the orthopyroxene matrix do not seem...the Ca-rich orthopyroxene from the Johnstown meteorite. Key-words: Ca-rich orthopyroxene, order-disorder...the Ca-rich orthopyroxene from the Johnstown meteorite. This orthopyroxene has the composition Wo3En74Fs23...et al., 1999) and contains both exsolved (100) augite lamellae and abundant GuinierPreston (GP) zones | | Dyar, M. D., Gunter, M. E., Delaney, J. S., Lanzarotti, A., Sutton, S. R. (2002) SYSTEMATICS IN THE STRUCTURE AND XANES SPECTRA OF PYROXENES, AMPHIBOLES, AND MICAS AS DERIVED FROM ORIENTED SINGLE CRYSTALS. The Canadian Mineralogist, 40 (5) 1375-1393 doi:10.2113/gscanmin.40.5.1375 | Journal (article/letter/editorial) | Specifically, single crystals of enstatite (En), augite (Aug), aegirine (Ae), kaersutite (Krs; three different...Keywords: XANES, XAS, single crystal, enstatite, augite, aegirine, kaersutite, annite, phlogopite, illite...Ă partir de cristaux uniques de pyroxènes, amphiboles, et micas en utilisant un faisceau de rayons X...d’enstatite (En), d’augite (Aug), d’aegyrine (Ae), de kaersutite (Krs; trois compositions diffĂ©rentes)...d’accommoder la tĂŞte du goniomètre dans le faisceau de rayons X de 20 30 m. Comme on § E-mail address: mdyar@mtholyoke | | Murri, M., Cámara, F., Adam, J., Domeneghetti, M.C., Alvaro, M. (2018) Intracrystalline “geothermometry” assessed on clino and orthopyroxene bearing synthetic rocks. Geochimica et Cosmochimica Acta, 227. 133-142 doi:10.1016/j.gca.2018.02.010 | Journal (article/letter/editorial) | using Brizi et al.s’ (2000) equation 3, based on an augite crystal from Vulcano basalt dike (PD30, En42Fs12Wo46)...al.s’ (2015) calibration, obtained on a Martian augite crystal from Miller Range nakhlite (MIL 03346,13)...determine the closure temperatures of Fe-Mg ordering in augite from nakhlites. Meteorit. Planet. Sci., 50, 499–507...of intracrystalline Fe 2+-Mg exchange in three augite crystals: Effect of composition on geothermometric...Tribaudino M. (1995) Orthopyroxene from the Serra de MagĂ© meteorite: structure refinement and estimation of | | | Book | America 123 Rogelio Daniel Acevedo Centro Austral de Investigaciones CientĂficas Tierra del Fuego Argentina...Argentina VĂctor Manuel GarcĂa Centro Austral de Investigaciones CientĂficas Tierra del Fuego Argentina...the Centro Austral de Investigaciones CientĂficas (CADIC) and the Consejo Nacional de Investigaciones CientĂficas.... . . . . . . . . . . . . . . . . . 35 37 4 Brazil. . . . . . . . . . . . . . . . . . . . . . . ....to reach to the Earth’s surface it is called a meteorite. So meteorites are small solid masses coming from | | Jacob, D., Palatinus, L., Cuvillier, P., Leroux, H., Domeneghetti, C., Camara, F. (2013) Ordering state in orthopyroxene as determined by precession electron diffraction. American Mineralogist, 98 (8) 1526-1534 doi:10.2138/am.2013.4296 | Journal (article/letter/editorial) | not been possible for pigeonite crystals bearing augite exsolutions, which is by far the most common case...is supported by the Conseil Regional du Nord-Pas de Calais, the European Regional Development Fund (ERDF)...(ERDF), and the Institut National des Sciences de l’Univers (INSU, CNRS). D. Troadec (IEMN) is gratefully...study of intracrystalline Fe2+–Mg exchange in three augite crystals: Effect of composition on geothermometric...Ordering kinetics of MgFe2+ exchange in a Wo43En46Fs11 augite. American Mineralogist, 86, 271–278. Cámara, F |
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