 | | Journal (article/letter/editorial) | | chondrules, chondrule rims, metal, and matrix in the Renazzo chondrite PING KONG1,* and HERBERT PALME1 1 Institut...the Renazzo chondrite (CR2) and studied by instrumental neutron activation analysis. Both Renazzo chondrule...suggest that Renazzo chondrules and matrix formed in the same nebular region. In Renazzo, fine-grained...contained in chondrules, chondrules and matrix of Renazzo have similar common siderophile/lithophile abundance...abundance ratios. This may imply that Renazzo chondrules and metal were formed by reduction of oxidized |  | | Journal (article/letter/editorial) | | chondrules (Fa and Fs <5 mol%) in CR chondrites (except Renazzo and Al Rais) consist of silica-rich igneous rims...pyroxene-rich chondrules in general. INTRODUCTION The CR (Renazzo-type) carbonaceous chondrites are primitive meteorites...type I chondrules in most CR chondrites (except Renazzo and Al Rais). Here, we characterize the mineralogy...91082 PCA 91082 PCA 91082 QUE 99177 QUE 99177 Renazzo Renazzo Temple Bar 9 11 20 5 6 MK 6 12 20 26 28 7...= Smithsonian Institution; number = Antarctic Meteorite Working Group designations. b + = present; − = |  | Cuvillier, Priscille, Chaumard, Noël, Leroux, Hugues, Zanda, Brigitte, Hewins, Roger H., Jacob, Damien, Devouard, Bertrand (2018) A TEM study of exsolution in Ca-rich pyroxenes from the Paris and Renazzo chondrites: Determination of type I chondrule cooling rates. Meteoritics & Planetary Science, 53 (3) 482-492 doi:10.1111/maps.13032 | Journal (article/letter/editorial) | | exsolution in Ca-rich pyroxenes from the Paris and Renazzo chondrites: Determination of type I chondrule cooling...pyroxenes in type I chondrules from the Paris CM and Renazzo CR carbonaceous chondrites in order to provide...chondrite selected for the study. Enstatite and forsterite grains are dark gray and Ca-rich pyroxene light...other thermal indicators need to be found since forsterite grains are essentially unzoned. Recently, Cu-Ga...carbonaceous chondrites Paris and Renazzo. The Paris CM meteorite contains both moderately and barely |  | | Journal (article/letter/editorial) | | which also bear some similarities to those in Renazzo. Its weight ratios of total Fe,?%& and SiO,/MgO...which is not identical to either of these two meteorite types (LEECH and GROSSMAX 1977). In that work...solar value. They also noted that the metal in Renazzo has similar Ni and Co contents to these. but lower...Cr. except for sample I, cause it to resemble Renazzo metal more than that of C2’s. 0.96 0.96 --___...C2 chondrites. but with affinities to those in Renazzo. In Table 4. the bulk chemical composition of the |  | | Journal (article/letter/editorial) | | been demonstrated earlier for the CR-chondrite Renazzo. Chondrules are dominated by FeO-poor olivine and...whereas matrix has high Si and low Mg. The bulk meteorite has a CI chondritic Mg/Si ratio (Klerner and Palme...Mg and/or Si between matrix and chondrules in Renazzo can be excluded. The phyllosilicates of the matrix...∼3.6 Kainsaz Y-81020 El-Quss Abu Said Renazzo Renazzo Renazzo Karoonda Efremovka Y-86751 Allende Leoville...Murray Nogoya Nogoya ALH83016 Renazzo Renazzo Renazzo Renazzo Renazzo Renazzo Al Rais Karoonda Efremovka |  | Varela, Maria Eugenia, Kurat, Gero, Hoppe, Petter, Brandstätter, Franz (2002) Chemistry of glass inclusions in olivines of the CR chondrites Renazzo, Acfer 182, and El Djouf 001. Geochimica et Cosmochimica Acta, 66 (9) 1663-1679 doi:10.1016/s0016-7037(01)00871-7 | Journal (article/letter/editorial) | | glass inclusions in olivines of the CR chondrites Renazzo, Acfer 182, and El Djouf 001 MARIA EUGENIA VARELA... Abstract—Glass inclusions in olivines of the Renazzo, El Djouf 001, and Acfer 182 CR-type chondrites...olivines of these chondrites which belong to the CR (Renazzo-type) group, which is characterized by having “pervasive...chondrites (two glass inclusions in olivine from the Renazzo chondrite) by Kurat et al. (1997) strongly supported...the early solar nebula. The importance of the Renazzo chondrite was already pointed out by Wood (1962) |  | | Journal (article/letter/editorial) | | almost 100% in CI-chondrites to 40% or less in the Renazzo type CR-chondrites (e.g., Fig. 1). Many carbonaceous...estimate a maximum contribution of CAIs to bulk meteorite Si of about 2% to 3% and even less for Mg. Most...complementarity has been demonstrated for the CR-chondrite Renazzo by Klerner (2001), Klerner and Palme (1999) and...shown that the relatively coarse grained Allende meteorite is compositionally uniform with regard to Si,...plus oxygen make up nearly 90% of the Allende meteorite. Other carbonaceous chondrites should at least |  | Martins, Z., Hofmann, B. A., Gnos, E., Greenwood, R. C., Verchovsky, A., Franchi, I. A., Jull, A. J. T., Botta, O., Glavin, D. P., Dworkin, J. P., Ehrenfreund, P. (2007) Amino acid composition, petrology, geochemistry,14C terrestrial age and oxygen isotopes of the Shişr 033 CR chondrite. Meteoritics & Planetary Science, 42 (9) 1581-1595 doi:10.1111/j.1945-5100.2007.tb00592.x | Journal (article/letter/editorial) | | the degree of terrestrial alteration of this meteorite and also its petrologic classification. Bulk chemical...suggests extensive amino acid contamination of the meteorite from the fall site soil. Nevertheless, Shi∫r 033...have become a source of an increasing number of meteorite finds in the past years (Jull et al. 1990; Ash...interdisciplinary team of researchers analyzed the Shi∫r 033 meteorite. Shi∫r 033 is the first CR carbonaceous chondrite...mineralogical, and isotopic composition of the meteorite as well as the dark CI-like inclusions. Hence |  | EBEL, Denton S., WEISBERG, Michael K., HERTZ, Jessica, CAMPBELL, Andrew J. (2008) Shape, metal abundance, chemistry, and origin of chondrules in the Renazzo (CR) chondrite. Meteoritics & Planetary Science, 43 (10) 1725-1740 doi:10.1111/j.1945-5100.2008.tb00639.x | Journal (article/letter/editorial) | | abundance, chemistry, and origin of chondrules in the Renazzo (CR) chondrite Denton S. EBEL1*, Michael K. WEISBERG1...eight whole chondrules in a ~1 cm3 piece of the Renazzo (CR) chondrite at ~17 µm per volume element (voxel)...accretion resulting in chondrule + matrix aggregates (meteorite parent bodies) that preserve the bulk chondritic...composition of source regions. INTRODUCTION The CR (Renazzo-type) chondrites are primitive meteorites that...DeGregorio et al. 2008). Renazzo is one of only two CR chondrite falls. In some Renazzo chondrules, metal occurs |  | | Journal (article/letter/editorial) | | kinds of carbonaceouschondrites: (1) carbonaceous Renazzo-like (CR) group, (2) carbonaceous high-metal (CH)...Bencubbin-like group let CH-like group let Ungrouped Renazzo Al Rais El DjoufOOI * Kaidunt Temple Bar EET 87770~...~Paired with 40 other EET meteorites (Antarctic Meteorite Newsletter, 1989, 1994). §Paired with Acfer 207...uncertain. $Paired with QUE 94627 (Antarctic Meteorite Newsletter, 1996). classification than "group"...and (2) spinel-bearing spherules surrounded by forsterite rims (Fig. 8). Concentrations of Al and Ti in |  | Bischoff, A., Palme, H., Ash, R.D., Clayton, R.N., Schultz, L., Herpers, U., Stöffler, D., Grady, M.M., Pillinger, C.T., Spettel, B., Weber, H., Grund, T., Endreβ, M., Weber, D. (1993) Paired Renazzo-type (CR) carbonaceous chondrites from the Sahara. Geochimica et Cosmochimica Acta, 57 (7) 1587-1603 doi:10.1016/0016-7037(93)90014-n | Journal (article/letter/editorial) | | Pergamon Press Ltd. Printed in U.S.A. Paired Renazzo-type (CR) carbonaceous chondrites from the Sahara...mineralogical similarities to the carbonaceous chondrite Renazzo were recovered at two locations of the Sahara:...26A1contents. The Acfer-El Djouf meteorite is classified as a CR (Renazzo-type) carbonaceous chondrite....comprises three non-Antarctic members (Al Rais, Renazzo, Acfer-El Djouf) and five Antarctic meteorites...lithological components of the Acfer-El Djouf meteorite are large chondrules (up to 1 cm in size; mean |  | | Journal (article/letter/editorial) | | chondrite plsnets than C2. C2’s are more abundant in meteorite collections than Cl’s (18 vs. 5 known), but this...printed out the results in terms of mole &a&ions of forsterite end fayalite or enstatite and ferrosilite. Analyses... r , KABA , , I : AL I , RAIS 1 I A RENAZZO . 11-m . _ . (GROSNAJA, mklIu-. 5 C, I_...C3): continuation of Fig. 1. Haripura through Renazzo are arranged in order of incrwsing content of chondrules...going from -150/o by vol. in Haripura to -700/O in Renazzo. The ordering is approximate, being based on visual |  | | Journal (article/letter/editorial) | | Pergamon Press Ltd. Printed in U.S.A. The CR (Renazzo-type) carbonaceous chondrite group and its implications...isotopic study of eight meteorites, identified as CR (Renazzo-type) chondrites, reveals that they have a set...olivine aggregates (AOA) with Mn-rich and Mn-poor forsterite, and (8) oxygen isotopic compositions that form...water to a greater degree than the rest of the meteorite. The overall degree of hydration in CR chondrites...fiamboidal magnetite in Renazzo matrix as being CI-like. It was later shown that Renazzo has a nitrogen isotopic |  | | Journal (article/letter/editorial) | | 73 stony meteorites to identify the nature of meteorite ablation spheres (MAS) and constrain the processes...melted crusts are similar to those of the bulk meteorite. However, differences from whole rock suggest...that are formed by the melting dust particles. Meteorite ablation spheres produced at high altitude probably...probably have compositions very different from bulk meteorite and will resemble cosmic spherules derived from...microanalysis tools (Krinov, 1960; Rarndohr, 1967). Meteorite fusion crusts can provide valuable information |  | | Journal (article/letter/editorial) | | synthetic standards were used: chromite for Cr, forsterite for Si and Mg, albite for Na, Mn-rich garnet...Vigarano is an observed fall (22 January 1910 in Ferrara, Italy) and an 11.5 kg stone was recovered quickly...the second stone. Weather records for 1910 in Ferrara, Italy are unavailable, but the website, weatherspark...58:5589–5598. Kempe W. and Müller O. 1969 The stony meteorite Krahenberg: Its chemical composition and the Rb-Sr...Hurt et al. the light and dark portions. In Meteorite research, edited by Millman P. N. Hingham, Mass: |  | | Journal (article/letter/editorial) | | was further strengthened by the large Allende meteorite fall in 1969 with its abundant calcium-aluminum-rich...are listed in Table 1. Elemental abundances for Renazzo (CR) are from Kallemeyn and Wasson (1982) and Mason...Mason and Wiik (1962), and for the other meteorite classes from Wasson and Kallemeyn (1988). primitive...(1988), except for the CR composition, which is the Renazzo bulk composition of Mason and Wiik (1962) and Kallemeyn...for matrix mineralogy and petrology in other meteorite groups that have a significant CI-like component |  | Rubin, Alan E., Breen, John P., Isa, Junko, Tutorow, Sean (2017) NWA 10214-An LL3 chondrite breccia with an assortment of metamorphosed, shocked, and unique chondrite clasts. Meteoritics & Planetary Science, 52 (2) 372-390 doi:10.1111/maps.12797 | Journal (article/letter/editorial) | | Slab of the NWA 10214 LL3 chondrite breccia. The meteorite contains numerous well-defined chondrules and...can be viewed at wileyonlinelibrary.com.) The meteorite has been significantly weathered. Most of the...thin section of NWA 10214, we estimate that the meteorite contains ~2–3 vol% metallic Fe-Ni, corresponding...exhibit some patchy Fe-Mg zoning. Because the meteorite contains LL5 and LL6 clasts (see below), the whole...indicate that the host is subtype 3.6–3.9. The meteorite has been very weakly shocked. Most of the coarse |  | | Journal (article/letter/editorial) | | groups, as well as the ungrouped Tagish Lake (C2) meteorite, can be reproduced using mixtures of the same...reliable as the elemental and isotopic data used. Meteorite heterogeneity (both within a sample and between...For the CRs, the bulk O isotopic composition for Renazzo was used (Clayton and Mayeda, 1999) because it...and GRO 95577 (CR1) are both more altered than Renazzo. However, Al Rais has an anomalously high matrix...component with a [Mg]Si,CI of ~1.5 (e.g., a mix of forsterite, [Mg] Si,CI≈2, and enstatite, [Mg]Si,CI≈1) to |  | Friend, Pia, Hezel, Dominik C., Barrat, Jean-Alix, Zipfel, Jutta, Palme, Herbert, Metzler, Knut (2018) Composition, petrology, and chondrule-matrix complementarity of the recently discovered Jbilet Winselwan CM2 chondrite. Meteoritics & Planetary Science, 53 (12) 2470-2491 doi:10.1111/maps.13139 | Journal (article/letter/editorial) | | chondrules and matrix make up the bulk of the meteorite. Chondrule fractions range from 15 to 92 vol%...complementarities in the carbonaceous chondrites Renazzo (CR) and Allende (CV). Hezel and Palme (2008) reported...shown by Ford and Brearley (2008) in the Allende meteorite, there exists some local redistribution of Ca...and CM chondrites and Ti/Al complementarities in Renazzo and Mokoia. Similar complementarities for main...have superchondritic Hf/W ratios, while the bulk meteorite has a CI chondritic ratio. In addition, the radiogenic |  | | Journal (article/letter/editorial) | | in Bishunpur (LL3.1) and Semarkona (LL3.0).a Meteorite Chondrule (26Al/27Al)0 (×10−5) Bishunpur (BM...in Bishunpur (LL3.1) and Semarkona (LL3.0).a Meteorite Bishunpur (BM 05DE) Chond. B2-C1 Type IIAB ...attributable to fractionation of forsterite in precursors. If only forsterite is the fractionated component...should be along the line that originates from a forsterite composition. However, chondrule compositions...been caused simply by addition or subtraction of forsterite, but probably by volatility-related fractionation |  | | Journal (article/letter/editorial) | | Widmanstatten pattern, nebular condensation, meteorite orbits, asteroid spectra); primitive meteoritic...(CAIs), solar-system abundances, organic matter); meteorite ages (radiogenic ages, cosmic-ray ages, charged...elements, noble gases, interstellar grains); and meteorite impacts (impact craters, WT mass extinction)....time was practically the world’s center of modem meteorite research. Harold Urey and Tony Turkevich were...would be a good thing if you were to continue meteorite research.” Obviously, not to fill his shoes-nobody |  | | Journal (article/letter/editorial) | | Mason, 1963) showed that the bulk S content of CR Renazzo is about 30% lower than those in CO chondrites...chondrite Al Rais are about 2 higher than in Renazzo. Abundances of other moderately volatile elements...with bulk compositions for the observed CR fall Renazzo (Wiik, in Mason, 1963; Kallemeyn et al., 1994)...synthetic standards were used: chromite for Cr, forsterite for Si and Mg, albite for Na, Mn-rich garnet...report 6 mg/g H and 14 mg/g C in whole-rock CR Renazzo. Based on data summarized by Pizzarello et al. |  | Hicks, L. J., MacArthur, J. L., Bridges, J. C., Price, M. C., Wickham-Eade, J. E., Burchell, M. J., Hansford, G. M., Butterworth, A. L., Gurman, S. J., Baker, S. H. (2017) Magnetite in Comet Wild 2: Evidence for parent body aqueous alteration. Meteoritics & Planetary Science, 52 (10) 2075-2096 doi:10.1111/maps.12909 | Journal (article/letter/editorial) | | this hypothesis, powdered material from a CR2 meteorite (NWA 10256) was shot into the aerogel at 6.1 km...silicates, requiring aqueous activity in the meteorite parent body. Hematite and maghemite c-Fe2O3 are...look at powdered material from a CR2 chondrite meteorite, selected as an analogue to Wild 2, including...magnetite grain from a thin section of the same CR2 meteorite shows a Fe-rich content with a trace of Cr. Peaks...8.056, and all final results for cometary and meteorite samples and reference materials, including Fe-K |  | | Journal (article/letter/editorial) | | thermal metamorphism experienced by the host meteorite. Oxygen-isotope compositions of olivine and low-Ca...05 0.03 3.33 0.42 54.5 0.06 <0.02 <0.01 96.7 forsterite and enstatite contents are shown for olivine...and the least Fe-rich compositions are shown. Forsterite and enstatite contents are shown for olivine...1.5 0.24 ± 0.25 0.03 ± 0.04 <0.01 94.6 ± 2.4 Forsterite and enstatite contents are shown for olivine...matrix (Figs. 3 and 4). The AOA olivines have forsterite content of 97 and 0.4 wt% MnO. These compositions |  | | Journal (article/letter/editorial) | | sharp, but irregular interfaces with the host meteorite and have characteristics which suggest that formed...from hot deserts. The 26AI concentration in a meteorite depends upon different parameter like the exposure...analyzed sample and the terrestrial age of the meteorite. Our data contributes to the understanding of...production rate characteristic for the corresponding meteorite class. We do not find extremely low 26AI concentrations...order to reconstruct the irradiation history of a meteorite in detail, it is essential to analyze other cosmogenic |
|
