 | | 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) | | experiment on matrix material of the Murchison (C2) meteorite up to 1900°C in vacuo has revealed the evaporation...hydrous silicates through magnesium silicates and iron-metal to calcium-aluminum oxides. The comparison...Lipschutz [9,10] heated a bulk sample o f Murchison meteorite at low pressure (10 -s atm H=) over the temperature...spectrometric analyses on the heated Murchison meteorite up to IO00°C to study the decomposition processes...is not placed on the study of a 14 specific meteorite, but on the universal evolution of fine-grained |  | | Journal (article/letter/editorial) | | classification into CI, C2, C3, and C4 types. Renazzo is a Type II meteorite. The Van Schmus division of Type III...textural differences but also differences in total iron content. The genesis of the different types of carbonaceous...for three metal-rich carbonaceous chondrites - Renazzo, Coolidge, and Kainsaz. If we utilize groundmass...groundmass mineralogy as a further discriminant, then Renazzo belongs to Type II and Coolidge and Kainsaz to...features can be used to classify an unanalyzed meteorite. Density is a particularly useful discriminant |  | 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...of the meteorite as well as the dark CI-like inclusions. Hence, major and trace elements, iron, and volatiles |  | 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) | | 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...also shown in Table 1. are En 96. These exceedingly iron-poor compositions are rare in ordinary chondrites...chondrites. Analyses of four grains of metallic nickel-iron and one of troilite are given in Table 3. Particularly...solar value. They also noted that the metal in Renazzo has similar Ni and Co contents to these. but lower |  | | 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; − = |  | | Journal (article/letter/editorial) | | and nonmagnetic fractions of six CR chondrites (Renazzo, Y793495, PCA91082, EET92042, Acfer 209 and El...of volatile elements is an important issue of meteorite research. Gas-solid fractionation during condensation...coexistence of highly unequilibrated phases in the Renazzo meteorite, the lack of meteorites of the same petrology...petrology and chemistry left the classification of Renazzo uncertain (Mason and Wiik, 1962; Mason, 1971; McSween... 1982). Also because of its unique chemistry, Renazzo was usually excluded from comparative discussion |  | | 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 |  | 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...carbonaceous chondrites Paris and Renazzo. The Paris CM meteorite contains both moderately and barely...vol% of the chondrite (Hewins et al. 2014). The Renazzo chondrite (CR2) experienced moderate aqueous alteration...chondrules (e.g., Weisberg et al. 1993). For Paris and Renazzo, type I chondrules are abundant and frequently |  | | Journal (article/letter/editorial) | | %0 for Orgueil and Ivuna and up to +1600%o for Renazzo. These enrichments, at least for Orgueil and Ivuna...+309%o vs. SMOW, respectively), as was the CV* meteorite Mokoia (+214 and +219%o on two different specimens)...practically all the easily exchangeable water from a meteorite could be removed by heating to 180°C in vacuum...suggested a single-stage fractionation process during meteorite formation. This was essentially also the preferred...matter in them Meteorite Unoxidized Orguei/ Ivuna Murray Murchison Mighei Mokoia Renazzo Oxidized H20 |  | | 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... 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...proportion of chondrules inoreases (Haripura + Renazzo), (1) the proportion of high-fayalife olivine tends |  | | Journal (article/letter/editorial) | | chemistry and mineralogy of the Bench Crater meteorite, which is a small fragment, previously numbered...unusual features it was different from any other meteorite then represented in terrestrial collections. McSween...examined Adelaide*, a meteorite with features similar to that of Bench Crater. The meteorite was first described...This feature led to our re-investigation of the meteorite. The analysis of Davy and Whitehead is given in...International Commission for Meteorite Nomenclature since the meteorite was not recovered in Adelaide |  | | Journal (article/letter/editorial) | | Pnnted in U.S.A. + 00 Origin of metallic Fe-Ni in Renazzo and related chondrites MIN SUNG LEE,* ALAN E. RUBIN...Co-Ni correlation among metal grains from the Renazzo and Al Rais chondrites reported in previous studies...chondrule margins, chondrule rims, and matrix) in Renazzo, Al Rais, and the related chondrite, MacAlpine...INTRODUCTION THE UNGROUPEDCARBONACEOUS chondrite, Renazzo, contains - 120 mg/g metallic Fe-Ni ( WILK, 1969;...highest among carbonaceous chondrite falls. The Renazzo-related meteorites, Al Rais and MacAlpine Hills |  | | Journal (article/letter/editorial) | | some relationships between these two elements and iron. In the present communication, these studies will...group (below dashed line). Total number = 22. Meteorite Alais Ivuna Orgueil (I) Orgueil (II) Cold Bokkcveld...Haripura Boriskino Erakot Murray Santa Cruz A1 Rais Renazzo Grosnaja Vigarano Mokoia Lance Felix Ornans Karoonda...olivine a n d p y r o x e n e e n r i c h e d in iron. MASON a n d W I I K r e g a r d t h e s e m e t...triangular diagram I t will be recalled t h a t iron, silicon a n d m a g n e s i u m are t h e m o s |  | | Journal (article/letter/editorial) | | 1990) Abstract-Bencubbin is an unclassified meteorite breccia which consists mainly of host silicate...in common with the major components in the CR (Renazzo-type) chondrites and the unique ALH85085 chondrite...relationships to other chondritic samples. The Bencubbin meteorite is an unclassified metal-silicate breccia which...1968), and identical material in the Weatherford meteorite has been called "aubritic" (Mason and Nelen, 1968)...relationship between the Bencubbin breccia and the CR (Renazzo-type) chondrites (Prombo and Clayton, 1985; Weisberg |  | | Journal (article/letter/editorial) | | assemblages from the MAC 87320, EET 92011, and Renazzo CR carbonaceous chondrites. The objectives of this...troilite, and Ni-rich metal. The assemblages in Renazzo contain tochilinite, magnetite, troilite, pentlandite...pentlandite, and phosphate. In all of the assemblages in Renazzo the tochilinite is fine grained and intimately mixed...All rights reserved. 1. INTRODUCTION The Renazzo meteorite was first identified as distinct from other...Nelen et al. (1975). It is the type sample for the Renazzo-like carbonaceous chondrite (CR) group, which was |  | Consolmagno, Guy J., Schaefer, Martha W., Schaefer, Bradley E., Britt, Daniel T., Macke, Robert J., Nolan, Michael C., Howell, Ellen S. (2013) The measurement of meteorite heat capacity at low temperatures using liquid nitrogen vaporization. Planetary and Space Science, 87. 146-156 doi:10.1016/j.pss.2013.07.009 | Journal (article/letter/editorial) | | www.elsevier.com/locate/pss The measurement of meteorite heat capacity at low temperatures using liquid...Accepted 16 July 2013 Available online 27 July 2013 Meteorite heat capacity (specific heat) is an essential parameter...tool for characterization of the material in a meteorite itself. We have devised a novel method for the...may provide an efficient way to classify whole meteorite samples and characterize subtle differences between...the bulk composition of a whole meteorite. Only a handful of meteorite heat capacities have been published |  | | Journal (article/letter/editorial) | | by other researchers allow the definition of a Renazzo (CR) group of carbonaceous chondrites. We analyzed...twenty-seven elements. Along with previously analyzed Renazzo, six or more closely related fall events are represented...were studied ~tro~phically along with Renazzo and Al Rais. Renazzo has a lineation possibly caused by fluid-lub~cated... One of the earliest compositional studies of Renazzo was by MASON and WIIK ( 1962 ) . Other earlier...one by TAKAHASHI et al. ( 1978) who classified Renazzo as CVZ, and another by WOLF et al. ( 1980) who |  | | 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...matrix can be porous and contains sulfide and metal. Iron Table 1a Average Si and Mg concentrations (wt.%)...∼3.6 Kainsaz Y-81020 El-Quss Abu Said Renazzo Renazzo Renazzo Karoonda Efremovka Y-86751 Allende Leoville |  | Harju, Ellen R., Rubin, Alan E., Ahn, Insu, Choi, Byeon-Gak, Ziegler, Karen, Wasson, John T. (2014) Progressive aqueous alteration of CR carbonaceous chondrites. Geochimica et Cosmochimica Acta, 139. 267-292 doi:10.1016/j.gca.2014.04.048 | Journal (article/letter/editorial) | | that have been more-significantly altered (e.g., Renazzo and Al Rais), metallic Fe-Ni has been partially...contains abundant magnetite, additional oxide phases, iron carbonate, only very rare metallic Fe-Ni and essentially...chondrites constitute one of the most primitive meteorite groups. There has been minimal thermal metamorphism:...phyllosilicate sheaths (Wasson and Rubin, 2009). Renazzo, the CRchondrite prototype and one of only two...Magnetite is present in some CR chondrites (e.g., Renazzo; Weisberg et al., 1993), but not in others (e.g |  | 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) | | to 8. Per@mon PreaLtd. Printed The Ftumingb meteorite. M.ineralogyand chemistry PETER R. BVSECK,* BRIAN...09, E&O-O*OO, Cr$$o* O-66; tit&Xl 99.27. THE meteorite fell at 12.60 p.m. on 25 June 1890, in Farmington...Smithsonian Institution has 24 kg. The Farmington meteorite was described by SNOW (1890) and KUXZ and W~~S~EE~K...less than 25,000 years. The appearance of the meteorite is remarkable-it is black, tough and dense, containing...particles are completely disseminated throughout the meteorite thus producing its black color, and large grains-up |  | | Journal (article/letter/editorial) | | carbonaceous chondrites, Orgueil, Murray, Murchison, Renazzo and Cold Bokkeveld. Data determined for whole rock...+650 to +I 150%. The acid residues of the Renazzo meteorite, whose total Hz has a 6D of +930’%, gave a...rS”N values range between +40 and -11. The h”N of Renazzo is unusual; its values range between + 150 and...observed in hydrogen released at 450°C when the meteorite was heated and the gas leaked directly into a...knowledge of how the D/H ratio varies in the meteorite. The existence of * Contribution Number 3609 |  | | Journal (article/letter/editorial) | | deviate from the solar composition. These intra-meteorite element variations hold clues for processes that...accretion to planetesimals or after accretion on the meteorite parent body. Palme et al. (1993) noticed that...(1994) reported data on the Antarctic meteorite Y-86751. This meteorite is almost identical to Allende in...alteration had redistributed both elements within the meteorite, Y-86751 and Allende must have had completely...Murakami et al. (1994) on a different part of the meteorite we assume that they are representative of the |
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