| | Journal (article/letter/editorial) | the Murchison meteorite STEVEN B. SIMON1*ANDREW M. DAVIS2 AND LAWRENCE GROSS MAN^.^ ‘Department of the...the Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, Illinois 60637, USA...USA *Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, USA...Abstract-Through freeze-thaw disaggregation of the Murchison meteorite, we have recovered a refractory inclusion...unique in terms of its texture, mineral compositions, and bulk composition. It consists of anhedral, Y-rich | | MacPherson, Glenn J., Bar-Matthews, Miryam, Tanaka, Tsuyoshi, Olsen, Edward, Lawrence, Grossman (1983) Refractory inclusions in the Murchison meteorite. Geochimica et Cosmochimica Acta, 47 (4) 823-839 doi:10.1016/0016-7037(83)90116-3 | Journal (article/letter/editorial) | in U.S.A. Refractory inclusions in the Murchison meteorite GLENN J. MACPHERSON,MIRYAM BAR-MATHEWS’,...OLSEN”and LAWRENCEGROSSMAN Department of the Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue...petrographic studies of a wide variety of refractory objects from the Murchison C2 chondrite have revealed...melilite-rich and feldspathoid-bearing inclusions in this meteorite, but none 6f these is identical to any inclusion... One inclusion (MUCH-l) consists of a delicate radial aggregate of hibonite crystals surrounded by alteration | | | Journal (article/letter/editorial) | Meteoritical Society, 1994. Printed in USA. Alteration of calcium- and aluminium-rich inclusions in the Murray...GREENWOOD^ 1Department of Physics, University of Essex, Colchester CO4 3SQ, U.K. 2Department of Mineralogy, The...K *Present address: Department of Geology and Geophysics, University of Edinburgh, West Mains Road, Edinburgh...revisedform 1994 June 13) Abstract-Four different types of calcium- and aluminium-rich inclusions (CAIs) have...CM2 chondrite Murray, three of which contain alteration products. Two types of altered CAIs, spinel inclusions | | Kimura, Makoto, Goresy, Armed El, Palme, Herbert, Zinner, Ernst (1993) Ca-,Al-rich inclusions in the unique chondrite ALH85085: Petrology, chemistry and isotopic compositions. Geochimica et Cosmochimica Acta, 57 (10) 2329-2359 doi:10.1016/0016-7037(93)90573-f | Journal (article/letter/editorial) | (CAIs) that differ from CAIs found in other types of meteorites. The ALH85085 inclusions are smaller (...chondrites. We have performed a comprehensive study of these inc!uions: forty-two for petrography and mineralogy...(CA1 125). The mineralogy of the CAIs is dominated by oxide phases. About half of the inclusions contain...others are reminiscent of recrystallization due to thermal processing. Many of the CAIs are coated with...with a double layer of gehlenitic melilite and diopside or a single layer of diopside. The CAIs analyzed | | | Journal (article/letter/editorial) | Faculty of Science, University of Tokyo, Hongo, Tokyo 113, Japan 'Present address: Dept. of Earth Sciences...Sciences, Faculty of Science, Kobe University, Nada, Kobe 657, Japan 'Present address: Onoda Cement Co...717 CO carbonaceous chondrite contain 5 to 80 vol% of nepheline, along with minor sodalite, and thus are...primary phases in inclusions are mainly spinel, fassaite, aluminous diopside, perovskite, and hibonite...melilite is rare. Spinel contains variable amounts of Fe (0 to 57 mol% FeAl,O.) and is commonly zoned. | | Russell, S.S., Huss, G.R., Fahey, A.J., Greenwood, R.C., Hutchison, R., Wasserburg, G.J. (1998) An Isotopic and Petrologic Study of Calcium-Aluminum-Rich Inclusions from CO3 Meteorites. Geochimica et Cosmochimica Acta, 62 (4) 689-714 doi:10.1016/s0016-7037(97)00374-8 | Journal (article/letter/editorial) | S0016-7037(97)00374-8 An isotopic and petrologic study of calcium-aluminum-rich inclusions from CO3 meteorites...Lunatic Asylum, Division of Geological and Planetary Science, California Institute of Technology, Pasadena...Pasadena, California 91125, USA 2 Department of Mineralogy, The Natural History Museum, Cromwell Road, London...and petrology of 229 calcium-aluminum-rich inclusions (CAIs) from ten CO3 meteorites of petrologic types...types 3.0 –3.7. Subsets of these inclusions were measured by ion probe for magnesium, calcium, and titanium | | | Journal (article/letter/editorial) | Formation of orange hibonite, as inferred from some Allende inclusions S. B. SIMON[*, A. M. DAVIS'J AND...AND L. GROSSMAN'J 'Department of the Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue...Illinois 60637, USA 2Enrico Ferrni Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois...inclusions, unlike that in Murchison, has low rare earth element abundances of <10 x CI; in the other inclusion...consistent with (26AlPAl)1= 5 x 10-5. Much of the hibonite and some of the spinel in these inclusions is corroded | | | Journal (article/letter/editorial) | Meteoritical Society, 1998. Printed in USA. Origin of hibonite-pyroxene spherules found in carbonaceous...ERNSTK. ZI"ER3 'Department of the Geophysical Sciences, The University of Chicago, 5734 South Ellis Avenue...60637, USA 2Enrico Fermi Institute, The University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois...form 1998 January 6) Abstract-We have studied both of the known glass-free, hibonite-pyroxene spherules:...consist of hibonite plates (-2 wt% TiOT' ) enclosed in Al-rich pyroxene that has such high amounts of CaTs | | Goresy, A.El, Palme, H., Yabuki, H., Nagel, K., Herrwerth, I., Ramdohr, P. (1984) A calcium-aluminum-rich inclusion from the Essebi (CM2) chondrite: Evidence for captured spinel-hibonite spherules and for an ultra-refractory rimming sequence. Geochimica et Cosmochimica Acta, 48 (11) 2283-2298 doi:10.1016/0016-7037(84)90224-2 | Journal (article/letter/editorial) | concentrations of refractory Iithophile and siderophile elements, with strong enrichments of the most refractory...elements (Lu, Sc, Hf) in one part of the inclusion. The inclusion consists of a melilite-rich core partially...consisting of spine1 + fassaite or spine1 + hibonite. These framboids are probably spherules of the types...types reported from Murchison, and were possibly captured by the molten inclusion before it solidified....and the spinel-rich spherules in Murchison. The rim sequence consists of the following five layers from | | | Journal (article/letter/editorial) | Enrico Fermi Institute and Dept. of Geophysical Sciences, University of Chicago, Chicago, IL 60637, USA...and magnesium isotopic compositions of hibonites from the Murchison (CM) and Allende (CV) meteorites are...for possible presence of the short-lived nuclides 41Ca and 26Al at the time of their formation. Abundance...determined to infer a plausible formation environment of the hibonites in the early solar system. The results...distribution of the short-lived nuclide 41Ca in the early solar system. Observation of correlated presence | | | Report (issue) | SCIENCES • NUMBER 25 Inclusions in the Allende Meteorite Brian Mason and S.R. Taylor ISSUED OCT 51982...SMITHSONIAN PUBLICATIONS SMITHSONIAN INSTITUTION PRESS City of Washington 1982 ABSTRACT Mason, Brian, and S...S.R. Taylor. Inclusions in the Allende Meteorite. Smithsonian Contributions to the Earth Sciences, number...—Six discrete groups of inclusions have been distinguished in the Allende meteorite. Groups I, V, and VI...fine-grained aggregates made up largely of spinel and fassaite; Group IV are olivine-rich aggregates and | | Schwander, D., Kööp, L., Berg, T., Schönhense, G., Heck, P.R., Davis, A.M., Ott, U. (2015) Formation of refractory metal nuggets and their link to the history of CAIs. Geochimica et Cosmochimica Acta, 168. 70-87 doi:10.1016/j.gca.2015.07.014 | Journal (article/letter/editorial) | com/locate/gca Formation of refractory metal nuggets and their link to the history of CAIs D. Schwander a...D-55128 Mainz, Germany Department of the Geophysical Sciences, The University of Chicago, Chicago, IL, United...Chicago Center for Cosmochemistry, The University of Chicago, Chicago, IL, United States d Robert A. Pritzker...Museum of Natural History, Chicago, IL, United States e Enrico Fermi Institute, The University of Chicago...Chicago, Chicago, IL, United States f University of West Hungary, H-9700 Szombathely, Hungary g Max-Planck-Institut | | | Journal (article/letter/editorial) | http://meteoritics.org Petrography of refractory inclusions in CM2.6 QUE 97990 and the origin of melilite-free spinel...chondrites Alan E. RUBIN Institute of Geophysics and Planetary Physics, University of California, Los Angeles,...(predominantly Mg-Fe serpentine); several contain small grains of perovskite. In addition to phyllosilicate, the most...most abundant inclusions in QUE 97990 consist mainly of spinel-pyroxene (35%), followed by spinel (20%),...diopside (with ≥8.0 wt% Al2O3), Al-Ti diopside (i.e., fassaite), and (in two inclusions) enstatite. No inclusions | | | Journal (article/letter/editorial) | Al-rich objects in ordinary chondrites: Related origin of carbonaceous and ordinary chondrites and their constituents...and K. KEIL’ Department of Geology and Institute of Meteoritic%University of New Mexico, Albuquerque...Absmct-Ca-Al-rich inclusions (CAIs), common constituents of carbonaceous chondrites, have been studied extensively...formed at high temperatures during the early history of the solar system. Few CAIs have previously been discovered...containing unequilibrated material, the unique meteorite Kakangari, and a few types 5 and 6 ordinary chondrites | | | Journal (article/letter/editorial) | GROSSMAN1,2 1 Department of the Geophysical Sciences, 5734 S. Ellis Ave., The University of Chicago, Chicago...Fermi Institute, 5640 S. Ellis Ave., The University of Chicago, Chicago, Illinois 60637, USA * Corresponding...unaltered carbonaceous chondrite with an unusual suite of refractory inclusions. The refractory inclusions...a newly prepared thin section and a small aliquot of disaggregated material were studied to compare the...to report new or unusual inclusion types. A total of 289 Ca-, Al-rich inclusions in the thin section and | | Simon, S. B., Grossman, L., Hutcheon, I. D., Phinney, D. L., Weber, P. K., Fallon, S. J. (2006) Formation of spinel-, hibonite-rich inclusions found in CM2 carbonaceous chondrites. American Mineralogist, 91 (10) 1675-1687 doi:10.2138/am.2006.2130 | Journal (article/letter/editorial) | Mineralogist, Volume 91, pages 1675–1687, 2006 Formation of spinel-, hibonite-rich inclusions found in CM2 carbonaceous...STEWART J. FALLON3 1 Department of the Geophysical Sciences, University of Chicago, 5734 S. Ellis Avenue... U.S.A. 2 The Enrico Fermi Institute, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois...isotopic compositions of a suite of 40 spinel-rich inclusions from the Murchison (CM2) carbonaceous chondrite...chondrite. Seven types of inclusions have been identified based on mineral assemblage: spinel-hibonite-perovskite; | | | Journal (article/letter/editorial) | Many of these meteorites are breccias containing primitive type 3 fragments as well as fragments of higher...lithologies. Here, we present the results of our search for and analysis of Al-rich objects in Rumuruti chondrites...simple concentric spinel-rich inclusions (42), (2) fassaite-rich spherules, (3) complex spinel-rich CAIs (53)...based on the presence or absence of different major phases (fassaite, hibonite, Na,Al-(Cl)-rich alteration...assemblages, abundance, and size, the overall assemblage of CAIs is distinct to the R-chondrite group. Some Ca | | | Journal (article/letter/editorial) | reserved $6.00 + .OO refractory spherule from Murchison: Evidence for very high-temperature melting in...DAVIS~ ‘Department of the Geophysical Sciences, 5734 South Ellis Avenue, The University of Chicago, Chicago...Institute, 5640 South Ellis Avenue, The University of Chicago, Chicago, IL 60637, USA (Received J14l.v2...recovered a unique refractory spherule, B6, from the Murchison C2 chondrite. Approximately 170 pm in diameter...outer rim sequence, from outermost to innermost, of aluminous diopside ( 10 Frn thick), anorthite (3 | | LIN, Y., KIMURA, M., MIAO, B., DAI, D., MONOI, A. (2006) Petrographic comparison of refractory inclusions from different chemical groups of chondrites. Meteoritics & Planetary Science, 41 (1) 67-81 doi:10.1111/j.1945-5100.2006.tb00193.x | Journal (article/letter/editorial) | Petrographic comparison of refractory inclusions from different chemical groups of chondrites Y. LIN1, 3*...Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences...China 2Faculty of Science, Ibaraki University, Mito 310-8512, Japan 3Guangzhou Institute of Geochemistry...Geochemistry, Chinese Academy of Sciences, Guangzhou, China *Corresponding author. E-mail: linyt@mail.igcas.ac.cn...inclusions (40–230 μm, with average of 86 ± 40 μm) were found by X-ray mapping of 18 ordinary chondrites. All | | Olsen, Edward J, Davis, Andrew M, Hutcheon, Ian D, Clayton, Robert N, Mayeda, Toshiko K, Grossman, Lawrence (1988) Murchison xenoliths. Geochimica et Cosmochimica Acta, 52 (6) 1615-1626 doi:10.1016/0016-7037(88)90230-x | Journal (article/letter/editorial) | ~i6-7037/88~3.~ t .@I Murchison xenoliths EDWARD J. OLSEN’*~,ANDREW M. DAVIS’, IAN D. HUTCHEON~, ROBERT...‘Field Museum of Natural History, Chicago, IL 60605, U.S.A. ‘James Franck Institute, University of Chicago...60637, U.S.A. 3Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena...University of Chicago, Chicago, IL 60637, U.S.A. ‘Department of Chemistry, University of Chicago, Chicago...Chicago, IL 60637, U.S.A. ‘~~rnent of Geophysical Sciences, Unive~i~ of Chicago, Chicago, IL 60637, U.S | | | Journal (article/letter/editorial) | Acta List of Referees, List of Contents, Subject Index, and Author Index Vokme 55, 1991 EDITORIAL ...continue to enable us to maintain the high standards of Geochimica et Cosmochimica Acta. These individuals...contribution that they have made to the advancement of geochemistry during the past year. In addition, we...who served as Executive Editors when G.F. was out of the country. We also introduce to you at this time...Subscription Manager of the Geochemical Society. All of the above are members of team that has brought | | | Journal (article/letter/editorial) | Amsterdam [FB] Evidence for extraneous origin of a magnesiowiistite-metal Fremdling from the Vigarano...Vigarano CV3 chondrite, 477B, contains three types of Fremdlinge and Pt-rich phases: (1) FeNi blebs; (2)...Pt-rich Fe-bearing veins. Many of the FeNi Fremdlinge contain grains of MgFe oxide (periclase-wi~stite...(periclase-wi~stite series). Ion microprobe measurements of an unusually large (5 #m) Per70-Wii30 grain reveal isotopically...spinel and melilite. The oxygen isotopic composition of the periclase-wiistite is 617OsMow = --9.1%o, 81SOsMow | | | Journal (article/letter/editorial) | Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China Institute of Astrophysics...refractory inclusions, consisting mainly of melilite, fassaite and spinel ⫾ anorthite, were found in the...composition of melilite varies from Åk4 –15 near the diopside rims to Åk80 –90 in the centers of these inclusions...melilite exhibits intergrowths with fassaite and/or anorthite in the centers of the inclusions. These observations...both inclusions were once molten. The Na2O content of melilite is positively correlated with the Åk content | | Rout, S.S., Bischoff, A., Nagashima, K., Krot, A.N., Huss, G.R., Keil, K. (2009) Oxygen- and magnesium-isotope compositions of calcium–aluminum-rich inclusions from Rumuruti (R) chondrites. Geochimica et Cosmochimica Acta, 73 (14) 4264-4287 doi:10.1016/j.gca.2009.04.006 | Journal (article/letter/editorial) | com/locate/gca Oxygen- and magnesium-isotope compositions of calcium– aluminum-rich inclusions from Rumuruti (R)... Germany b School of Ocean and Earth Sciences and Technology, Hawai‘i Institute of Geophysics and Planetology...report oxygen- and magnesium-isotope compositions of Ca,Al-rich inclusions (CAIs) from several Rumuruti...three-isotope oxygen diagram, d17O vs. d18O, compositions of individual minerals in most R CAIs analyzed fall...fall along a slope-1 line. Based on the variations of D17O values (D17O = d17O 0.52 d18O) within individual | | | Journal (article/letter/editorial) | Vernadsky Institute of Geochemistry and Analytical Chemistry of Russian Academy of Sciences, Moscow 119991...National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia 20560–0119...20560–0119, USA 3 Hawaiʻi Institute of Geophysics and Planetology, University of Hawaiʻi at M anoa, Honolulu...(FoB) CAI, that encloses at least 26 smaller CAIs of different types, including compact type A (CTA),...and B CAIs found elsewhere, the bulk compositions of the types A and B CAIs within 3N more closely match |
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