| | Journal (article/letter/editorial) | 0016-7037/88/$3.00 U.S.A. + .oo Matrix mineralogy of the Orgueil CI carbonaceous chondrite KAZUSHIGE TOMEOKA* and...transmission electron microscopic study of the Orgueil CI carbonaceous chondrite shows that the matrix...probably fenihydrite (a ferric hydroxide). The ferrihydrite occurs in small particles f<80 A in diameter)...phyllosiiicates”) that are intimately associated with the ferrihydrite. Coarsely crystallized phyllo~licates (“coarse...occur in clusters relatively free of ferrihydrite. The ferrihydrite is a major matrix constitutent and | | | Journal (article/letter/editorial) | m / l o c a t e / e p s l Ca-carbonate in the Orgueil (CI) carbonaceous chondrite: Mineralogy, microstructure...Keywords: Orgueil carbonaceous chondrite EBSD calcite twinning shock a b s t r a c t The Orgueil CI carbonaceous...within a finely crystalline saponite– serpentine–ferrihydrite groundmass. The Ca-carbonate grains are typically...DuFresne and Anders, 1962a; Richardson, 1978; Kerridge et al., 1979; Fredriksson and Kerridge, 1988). Alteration...(Zolenskyet al., 1993; Clayton and Mayeda, 1999; Bullock et al., 2005) to produce Mg–Fe serpentine and saponite | | Bullock, E.S., Gounelle, M., Lauretta, D.S., Grady, M.M., Russell, S.S. (2005) Mineralogy and texture of Fe-Ni sulfides in CI1 chondrites: Clues to the extent of aqueous alteration on the CI1 parent body. Geochimica et Cosmochimica Acta, 69 (10) 2687-2700 doi:10.1016/j.gca.2005.01.003 | Journal (article/letter/editorial) | Geochimica et Cosmochimica Acta, Vol. 69, No. 10, pp. 2687–2700, 2005 Copyright © 2005 Elsevier Ltd Printed...Université Paris XI, Bâtiment 104, 91 405 Orsay Campus, France 3 University of Arizona, Lunar and Planetary Laboratory...this study, although it has also been reported in Orgueil (MacDougall and Kerridge, 1977). The pyrrhotite...evidence of Ni or Co zoning. The pyrrhotite grains in Orgueil and Ivuna are, in general, smaller, and show more...y from Alais, Tonk and Ivuna, completely from Orgueil—leaving behind pyrrhotite with spaces (“corrosions”) | | | Journal (article/letter/editorial) | errestrial rocks (Ch en & Wasserb urg 1 9 81 , Bowring et al 1 990). Th ey contain min eral grains that occ...th e l east und erstood ma jor component of CC m et eori tes. Matrix is the backgro und "sea" in which...that mainly consists of the anhydro us phas es of m et eorites, s uch as olivin e, pyroxen e, and F e(Ni...gen erally pres ent in only minor amo unts. Som e m et eori tes contain sig nificant amo un ts of phyllosilicates...accretion bro ught th es e min erals to a vari ety of m et eorite parent bodi es. It is probable that com etary | | | Journal (article/letter/editorial) | Vandceuvre-lis-Nancy, France 2ENSG-INPL, BP40, F-54501 Vandceuvre-lis-Nancy, France XSNSM, Bat. 104, F-9...F-9 1405 Orsay-Campus, France *Correspondence author's e-mail address: toppani@crpg.cnrs-nancy.fr (Received...magnetite shell. Fragments of the Murchison and Orgueil meteorites were used as analogue material in flash-heating...1985) and in polar ice sheets (Maurette et al., 1986, 1991a; Taylor et al., 2000; Yada and Kojima, 2000)....Chnstophe Michel-Levy and Bourot-Denise, 1992;Kurat et al., 1994;Gounelle, 2000) and are thought to originate | | | Journal (article/letter/editorial) | alteration products by aqueous processes active on the meteorite parent body appears to be the most likely origin...Kerridge and Bunch, 1979), impact heating (Lange et al., 1985), or formation of an interfacial water...Since the work of Hulston and Thode (1965), Monster et al. (1965) and Kaplan and Hulston (1966), there have...sulphurbearing constituents in the Orgueil meteorite, Monster et al. (1965) made isotopic measurements...(Cold Bokkeveld, Mighei and Murray) as well as Orgueil. Recently larger internal variations in 034S have | | | Journal (article/letter/editorial) | ~16.7037/90~3.~ Geochimica et Cosm~~i~iea Actu Vol. 54, pp. 2 I 13-2 120 Copyrighl 0 1990 Pergamon...lacking in Kaba is the serpentine and ferrihydrite found in Orgueil. Alteration products in Kaba matrix...and WOOD, 1987; LIU and SCHMITT, 1987, 1988; LIU et al., 1988). We are particularly interested in the...and LAP) in inclusions (FEGLEY and POST, 1985; LIU et al., 1988). BGLEY and POST (1985) described unidentified...phyllosilicates similar to those described by COHEN et al. (1983) in the Mokoia CV3 chondrite. TOMEOKA and | | Morlok, Andreas, Bischoff, Addi, Stephan, Thomas, Floss, Christine, Zinner, Ernst, Jessberger, Elmar K. (2006) Brecciation and chemical heterogeneities of CI chondrites. Geochimica et Cosmochimica Acta, 70 (21) 5371-5394 doi:10.1016/j.gca.2006.08.007 | Journal (article/letter/editorial) | Geochimica et Cosmochimica Acta 70 (2006) 5371–5394 www.elsevier.com/locate/gca Brecciation and chemical...lm to several hundred lm in the CI chondrites Orgueil, Ivuna, Alais, and Tonk show a wide range of chemical...of phyllosilicates, magnetites, and possibly ferrihydrite, in particular, control the abundances of these...except for volatiles such as H, C, N, and O (Baars et al., 1993). Since the solar photosphere is representative...08.007 totally pristine parent bodies: of all meteorite classes CI chondrites have undergone the highest | | | Journal (article/letter/editorial) | analyzed Allende, Murchison, Tagish Lake, and Orgueil. Based on our modal data, the grain density estimates...estimates for Allende, Murchison, and Orgueil are close to literature values. In the case of Tagish Lake...an exceptionally high porosity of 41% for this meteorite, similar to some chondritic IDPs and in line with...instrumental studies. This may be an oxidized meteorite, but that oxidation is not manifested in abundant...addition, we note appreciable fayalitic olivine in Orgueil, detected by both XRD and Mössbauer. We employed | | | Journal (article/letter/editorial) | serpentine, magnetite, pentlandite, pyrrhotite, and ferrihydrite. Phases such as tochilinite and cronstedtite...represent material which is less altered than Orgueil. The difference in oxygen isotopic composition...sulfides to produce ferrihydrite and more Mg-rich saponite, such as that in Orgueil matrix. Although the...CM clasts (e.g., WILKENING, 1973; BUNCH et al., 1979; REID et al., 1990). This apparent difference may...small specks up to 3 mm across (PRINZ et al., 1987b). PRINZ et al. ( 1987b) reported a modal abundance | | | Journal (article/letter/editorial) | at www.sciencedirect.com ScienceDirect Geochimica et Cosmochimica Acta 165 (2015) 148–160 www.elsevier...bulk samples of the CI chondrite falls Alais, Orgueil and Ivuna, and the Antarctic CI-like chondrites...chondrites Y-82162 and Y-980115. We find that Alais, Orgueil and Ivuna are dominated by a mixed serpentine/saponite...samples in the meteorite collection (Anders and Grevesse, 1989; Lodders, 2003; Barrat et al., 2012). However...1996; Bischoff et al., 2006). As a potential source of Earth’s volatiles (Alexander et al., 2012), understanding | | | Journal (article/letter/editorial) | CI-like phyllosilicate-rich clasts in the Tsukuba meteorite inferred from mineralogy and noble gas signatures1...dispersed in a brecciated region in the Tsukuba meteorite. The clasts, much darker than the dark portions...have compositions quite similar to those in the Orgueil CI carbonaceous chondrite. Therefore, mineralogically...were found among the light^dark structure in the meteorite and contain abundant solar noble gases. Impacts...1016/S0012-821X(03)00282-6 EPSL 6693 2-7-03 322 D. Nakashima et al. / Earth and Planetary Science Letters 212 (2003) | | Zanetta, P.-M., Le Guillou, C., Leroux, H., Zanda, B., Hewins, R.H., Lewin, E., Pont, S. (2019) Modal abundance, density and chemistry of micrometer-sized assemblages by advanced electron microscopy: Application to chondrites. Chemical Geology, 514. 27-41 doi:10.1016/j.chemgeo.2019.03.025 | Journal (article/letter/editorial) | article as: P.-M. Zanetta, C. Le Guillou, H. Leroux, et al., Modal abundance, density and chemistry of micrometer-sized...8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France ; 2. IMPMC, Sorbonne Université...MNHN, UPMC Paris 06, UMR CNRS 7590, 75005 Paris, France ; 3. EPS, Rutgers Univ., Piscataway, NJ 08854,...75014 Paris, France ; 5. ISTerre (OSUG : Univ. Grenoble Alpes & INSU-CNRS), Grenoble, France. (Pierre.marie...three well-known chondrites (Murchison, Paris and Orgueil), showing heterogeneous grain sizes and mineralogy | | | Journal (article/letter/editorial) | Geochimica et Cosmochimica Acta, Vol. 67, No. 23, pp. 4621– 4638, 2003 Copyright © 2003 Elsevier Ltd...Pétrographiques et Géochimiques, CNRS-UPR2300, BP20, 54501 Vandoeuvre-les-Nancy, France 2 MNHN, Laboratoire...Extraterrestre, UMS CNRS 2679, 61 rue Buffon, 75005 Paris, France 3 Ecole Nationale Supérieure de Géologie, INPL...INPL, BP40, 54501 Vandoeuvre-les-Nancy, France (Received February 11, 2003; accepted in revised form May...extraterrestrial objects were carried out using Orgueil samples as proxies of meteoritic material. Covering | | TONUI, Eric K., ZOLENSKY, Michael E., LIPSCHUTZ, Michael E., WANG, Ming-Sheng, NAKAMURA, Tomoki (2003) Yamato 86029: Aqueously altered and thermally metamorphosed CI-like chondrite with unusual textures. Meteoritics & Planetary Science, 38 (2) 269-292 doi:10.1111/j.1945-5100.2003.tb00264.x | Journal (article/letter/editorial) | characteristics of the Yamato 86029 (Y-86029) meteorite. Y-86029 is a breccia consisting of a variety...available for study (Anders and Grevesse 1989; Burnett et al. 1989). These meteorites consist largely of finegrained...Society, 2003. Printed in USA. 270 E. K. Tonui et al. ratios (3.56) corresponding to a volume fraction...Weisberg, Prinz, and Nehru 1988), and Kaidun (Zolensky et al. 1996) continue to provide an important source...integrated intensities of xray reflections (Nakamura et al. 2001). PETROGRAPHY AND MINERALOGY Y-86029 is | | McSween, Harry Y., Emery, Joshua P., Rivkin, Andrew S., Toplis, Michael J., C. Castillo-Rogez, Julie, Prettyman, Thomas H., De Sanctis, M. Cristina, Pieters, Carle M., Raymond, Carol A., Russell, Christopher T. (2018) Carbonaceous chondrites as analogs for the composition and alteration of Ceres. Meteoritics & Planetary Science, 53 (9) 1793-1804 doi:10.1111/maps.12947 | Journal (article/letter/editorial) | Recherche en Astrophysique et Planetologie, University of Toulouse, Toulouse, France 4 Jet Propulsion Laboratory...surface of Ceres in existing meteorite collections (e.g., Gaffey 1976; Feierberg et al. 1985), although interpreted...specific alteration pathways may have differed (Rivkin et al. 2011). The more highly altered CM and CI classes...and survive transit to Earth (Rivkin et al. 2014). Vernazza et al. (2015) suggested that if there are...Meteoritical Society, 2017. 2 H. Y. McSween Jr. et al. collection, they reside among the hydrated IDPs | | Britt, Daniel T., Cannon, Kevin M., Donaldson Hanna, Kerri, Hogancamp, Joanna, Poch, Olivier, Beck, Pierre, Martin, Dayl, Escrig, Jolantha, Bonal, Lydie, Metzger, Philip T. (2019) Simulated asteroid materials based on carbonaceous chondrite mineralogies. Meteoritics & Planetary Science, 54 (9) 2067-2082 doi:10.1111/maps.13345 | Journal (article/letter/editorial) | Univ. Grenoble Alpes, CNRS, IPAG, 38000 Grenoble, France 5 European Space Agency, ECSAT, Fermi Avenue, Harwell...developed based on CI1 chondrites (typified by Orgueil), CM2 chondrites (typified by Murchison), and CR2/3...to support a spacebased economy (Metzger et al. 2013; Graps et al. 2017). There are compelling science...impact cratering (e.g., Miyamoto et al. 2007), space weathering (e.g., Clark et al. 2002), Yarkovsky and YORP...YORP effects (e.g., Vokrouhlicky et al. 2015), aqueous alteration and thermal heating (e.g., Keil 2000) | | | Journal (article/letter/editorial) | Robertd a Centre de Recherches Pétrographiques et Géochimiques, CNRS UPR 2300, 15 rue Notre-Dame des...Vandoeuvre lès Nancy Cedex, France b Laboratoire de Chimie Bioorganique et Organique Physique, UMR CNRS...Chimie de Paris, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France c Ecole Nationale Supérieure...Roubault, BP 40, 54501 Vandoeuvre-Lès-Nancy Cedex, France d Laboratroire de Minéralogie, FRE CNRS 32, Museum...d’Histoire Naturelle, 61 rue Buffon, 75005 Paris, France Received 5 January 2005; accepted 15 April 2005 | | | Journal (article/letter/editorial) | at www.sciencedirect.com ScienceDirect Geochimica et Cosmochimica Acta 145 (2014) 175–205 www.elsevier...powdered samples of the carbonaceous chondrites Orgueil (CI1), ALH 88045 (CM1), Cold Bokkeveld (CM2), Murchison...reserved. 176 R.W. Court, M.A. Sephton / Geochimica et Cosmochimica Acta 145 (2014) 175–205 1. INTRODUCTION...surface beneath (Greshake et al., 1998; Court and Sephton, 2009a,b, 2011; Toppani et al., 2001; Toppani and...delivered mass of 1023 g (Kring and Cohen, 2002; Gomes et al., 2005), occurring over 200 Myr, would amount | | Sutton, S., Alexander, C.M.O'D., Bryant, A., Lanzirotti, A., Newville, M., Cloutis, E.A. (2017) The bulk valence state of Fe and the origin of water in chondrites. Geochimica et Cosmochimica Acta, 211. 115-132 doi:10.1016/j.gca.2017.05.021 | Journal (article/letter/editorial) | 2017.05.021 GCA 10290 To appear in: Geochimica et Cosmochimica Acta Received Date: Accepted Date:...and the Origin of Water in Chondrites, Geochimica et Cosmochimica Acta (2017), doi: http://dx.doi.org/10...Laboratory, Argonne, IL 60439 Submitted to Geochimica et Cosmochimica Acta, September 2016 Revision submitted...to determine the Fe valences of bulk meteorite powders in Orgueil (CI1), a number of CMs and CRs that...total ranges of bulk Fe valences we obtained were: Orgueil 2.77, CMs 2.40-2.63, CRs 1.46-2.54, and Semarkona | | | Journal (article/letter/editorial) | abundance of phases > 5 μm in the CI chondrites Orgueil, Ivuna, Alais, and Tonk. Considering this cut-off...94 vol%. The values vary slightly from meteorite to meteorite. Considering all four chondrites, the most...degree of brecciation decreases in the sequence: Orgueil > Ivuna > Alais ∼ Tonk. Because these meteorites...specific coarse-grained phases. In this respect, in Orgueil we found a fragment with a 21.5 vol% of magnetite...Ebihara, 1982; Anders and Grevesse, 1989; Barrat et al., 2012). Statistically, CI chondrites are rare | | | Journal (article/letter/editorial) | immobile while hydration reactions proceeded on the meteorite parent bodies. The near closed-system character...fourteen CM chondrites and in the CI chondrites Orgueil and Ivuna. Dolomite has been identified and analyzed...particles (e.g., TOMEOKA and BUSECK, 1986; KELLER et al., 1992). CARBONATEMINERALSHAVElong been recognized...a large number of analyses from Alais, Ivuna, Orgueil, and Tonk. Carbonates in CM chondrites have received...Fe has been noted by several workers (e.g., FUCHS et al., 1973; BUNCH and CHANG, 1980; BARBER, 198 1) | | | Journal (article/letter/editorial) | at www.sciencedirect.com ScienceDirect Geochimica et Cosmochimica Acta 131 (2014) 368–392 www.elsevier...com/locate/gca Evolution of organic matter in Orgueil, Murchison and Renazzo during parent body aqueous...Albuquerque, NM 87131, USA Laboratoire de Minéralogie et Cosmochimie du Muséum, UMR CNRS 7202, MNHN, CP 52...52, 57 rue Cuvier, 75231 Paris Cedex 05, France Received 6 February 2013; accepted in revised form 12...chondrite falls, Renazzo (CR2), Murchison (CM2) and Orgueil (CI). By combining synchrotron-based STXM and TEM | | | Journal (article/letter/editorial) | Nucléaire et de Spectrométrie de Masse, CNRS/IN2P3—Univ. Paris XI, 91405 Orsay-Campus, France 3U.S. Army...Naturelle, Case Postale 52, 57 rue Cuvier, 75005 Paris, France †Corresponding author. E-mail: m.genge@imperial...reflect the fundamental genetic differences between meteorite parent bodies, albeit with minimal bias towards...single collecting expedition) (Maurette et al. 1991; Taylor et al. 1998), and provide us with a unique...and snow (Duprat et al. 2003; Iwata and Imae 2001; Maurette et al. 1991; Taylor et al. 1998; Yada and | | | Journal (article/letter/editorial) | Geochimica et Cosmochimica Acta 70 (2006) 1040–1058 www.elsevier.com/locate/gca Experimental aqueous...aqueous alteration of the Allende meteorite under oxidizing conditions: Constraints on asteroidal alteration...Ca-carbonate as well as the Fe-oxyhydroxide, ferrihydrite. However, the phyllosilicate phases formed in...extremely important, and one of the central goals of meteorite research. Unequivocal identification of features...(e.g., Zolensky and McSween, 1041 1988; Zolensky et al., 1993). A similar approach has also been used |
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