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| PUBLISHING COMPANY HIBONITE [Ca2(A1,Ti)24038 ] FROM ALLENDE CHONDRITIC THE LEOVILLE AND METEORITES* Klaus...Meteoritics, The University of New Mexico, Albuquerque, New Mexico 87106, USA "and Louis H. F U C H S...Si-Fe-poor, achondritic inclusions of the Leoville and Allende HL-group chondrites. Two varieties of hibonite...diopside, andradite, Ca-pyroxene, perovskite, spinel, taenite, chromite, and pentlandite, and in close proximity...polymict-brecciated HLgroup chondrites Leoville and Allende, and the present paper deals with a detailed description |
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| MAGNETIZATION AND THERMOMAGNETIC OF THE ALLENDE PROPERTIES METEORITE Robert F. BUTLER* Department of Geophysics...Paleomagnetic examination of a l-kg specimen of the Allende meteorite has revealed the existence of natural remanent...original accretion or post-accretion reheating of Allende. Paleointensity determinations on three samples...ferromagnetic minerals in Allende consist of 95 wt% taenite containing 67% Ni plus 5 wt% taenite with 36% Ni. These...chondrites. The Allende meteorite shower occurred in February 1969 over northern Mexico. Preliminary petrologic |
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| RELATIONS OF SULFIDE, SULFATE AND SULFUR IN ORGUEIL METEORITE Manuel N. Bass NASA Manned Spacecraft Center...concurrently forming cracks in unheated portions of the meteorite. The minerals of Orgueil indicate a many-stage...recognized for some time by its occurrence in meteorite fusion crusts. Also spherules of wustite have...chondrites. The calculations suggest a method of de ducing equilibration temperatures of enstatite chondrites...Territory, Australia are identified as being of meteorite impact origin. Liverpool Crater, lat 12° 24'S; |
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| Coolidge, Mulga (West) and, to a lesser extent, Allende, as evidenced by ferromagnesian mineral equilibration...the metamorphic effects in the Allende chondrite (the only meteorite of the group that has been intensively...of the Vigarano subtype, it is suggested that Allende alone may not adequately reflect the wide spectrum...carbonaceous chondritic scription of the Arch meteorite has not been pubmeteorites [particularly the Type...system. The C3 class has been subdivided into meteorite find from Australia, may also belong with two |
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| com/locate/epsl Magnetization of Extraterrestrial Allende material may relate to terrestrial descend Gunther...3 February 2018 Editor: J. Brodholt Keywords: Allende magnetic dynamo paleomagnetism bolide decelerating...a b s t r a c t The origin of magnetization in Allende may have significant implications for our understanding...magnetic Allende data may contain information that could constrain the magnetic history of Allende. The measurements...measurements on Allende chondrules reveal an existence of magnetization component that was likely acquired |
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| 1356-1362, 1991 Euhedral awaruite in the Allende meteorite: Implications for the origin of awaruite-...a low-FeO porphyntic olivine chondrule in the Allende CV3 carbonaceouschondrite is comprised of 9 vol0/o...within the molten chondrule, (4) crystallization of taenite and magrretite (plus or minus sulfide and phosphate)to...transformation of taenite into awaruite + tetrataenite at temperatures of <500 "C. Taenite was the sole liquidus...esupon crystallization; in the other nodules, taenite crystallized along with or subsequentto magnetite |
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| identification has elucidated many aspects of meteorite formation. Of particular interest are five phosphate...calcium- and aluminum-rich silicates in the Allende meteorite, a Type 1II carbonaceous chondrite which fell...(Mason, 1962), when I wrote an account of the meteorite minerals then recognized, see Table 1, the list...Name Formula Occurrence Kamacite a-(Fe,Ni) Taenite Copper Diamond Graphite 'Y-(Fe,Ni) Cu C C Sulfur...s Ti0 2 Formula Accessory in Odessa iron and Allende (CellI) Rare, in ureilites Rare, in ureilites Accessory |
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| Laboratoire de Geochimie et Cosmochimie - Institut de Physique du Globe et Departement des Sciences de la Terre...TREMORGIO (CANTON TICINO) AS A POSSIBLE QUARTERNARY METEORITE IMPACT CRATER IN THE SWISS ALPS Kurt Bachtiger...the author had, some years ago, the idea of a meteorite impact crater in the Quarternary, i.e. 20-50,000...some interpretations will be attempted. 171 K Meteorite Type (ppm) johnstown (whole rock) Di 853...Total Ar 39_Ar40 age (G.Y.) 4.38 4.07 maximum Meteorite minimum Bjurbole 4.12 3.46 3.96 3.98 1.62 |
 | Rubin, Alan E., James, Janet A., Keck, Bradley D., Weeks, Karen S., Sears, Derek W.G., Jarosewich, Eugene (1985) THE COLONY METEORITE AND VARIATIONS IN CO3 CHONDRITE PROPERTIES. Meteoritics, 20 (2) 175-196 doi:10.1111/j.1945-5100.1985.tb00859.x | Journal (article/letter/editorial) |
| THE COLONY METEORITE AND VARIATIONS IN C03 CHONDRITE PROPERTIES Alan E. Rubin Institute ofGeophysics...Institution Washington, DC 20560 The Colony meteorite is an accretionary breccia containing several...subgroups. Around 1975, a weathered 3.9 kg stone meteorite was found by a farmer near the town of Colony...two irradiations along with samples of the Allende meteorite and two samples of USGS standard rock BCR-I...is expressed relative to that of the Dhajala meteorite to enable inter-laboratory comparisons. RESULTS |
 | KROT, A. N., BREARLEY, A. J., ULYANOV, A. A., BIRYUKOV, V. V., SWINDLE, T. D., KEIL, K., MITTLEFEHLDT, D. W., SCOTT, E. R. D., CLAYTON, R. N., MAYEDA, T. K. (1999) Mineralogy, petrography, bulk chemical, iodine-xenon, and oxygen-isotopic compositions of dark inclusions in the reduced CV3 chondrite Efremovka. Meteoritics & Planetary Science, 34 (1) 67-89 doi:10.1111/j.1945-5100.1999.tb01733.x | Journal (article/letter/editorial) |
| Planetary Sciences, University of New Mexico, Albuquerque, New Mexico 87131, USA 3Division of Mineralogy...nodules in chondrules consist of Ni- and Co-rich taenite, Co-rich kamacite, and wairauite; sulfides are...alteration mineralization in the Efiemovka and Allende dark inclusions, we infer that the latter may have...components prior to incorporation into a host meteorite. Dark inclusions are common constituents in all...inclusions studied in detail are from the Allende meteorite and have textures, mineralogy, and bulk chemical |
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| supported by NSF grant EAR 76-01146. THE SHAW METEORITE: EVIDENCE FOR AN IGNEOUS ORIGIN J.L. Berkley...Fodor, G.J. Taylor and K. Keil, University of New Mexico, Albuquerque, NM 87131 R.M. Fruland, Johnson Space...Space Center, Houston, TX 77058 The Shaw meteorite has Lgroup chondritic bulk chemistry and mineralogy...as taenite, which later precipitated kamacite on its borders at """ 660° C; the remaining taenite began...recrystallization, support an igneous origin for the Shaw meteorite. Data are presently insufficient to determine |
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| University ofOxford, Oxford OX] 3PR, England Whole meteorite samples taken from different individuals of Bruderheim...compared for a portion of the lunar nearside (30-50 DE. and 0-24 ON.) in the Taruntius and Macrobius quadrangles...pyroxene, magnetite [Fe2+0) [Fer03) and other meteorite minerals has been to assume secondary reactions...also by fundamental radiation laws (Arrhenius and De, 1973). A more inclusive model, taking into account...editor, Wiley, N.Y., 133-156. Arrhenius, G. and B.R. De, 1973. Equilibrium Condensation in a Solar Nebula |
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| Manganiferousorthopyroxeneand olivine in the Allende meteorite AleN E. RuuN Institute of Geophysics and Planetary...an unusually large porphyritic chondrule in the Allende CV3 carbonaceouschondrite.Orthopyroxenesand olivineswith...matrix and other relatively coarse-grainedrims in Allende and other CV3 chondrites attests to the unique...rich in iron kinds of refractory inclusions in Allende, but rims around (e.g.,Dodd, 1963;Davidsonand Mathison...Manganiferouspyroxeneswith low FeO Chondrules in Allende and other CV3 chondrites have are quite rare, primarily |
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| 2. Lunar geology. 3. Planets — Surfaces. 4. Meteorite craters. I. Title. QB501.K56 550'.999 75-45357...at Mecca. This stone is widely reputed to be a meteorite and even thought to be the oldest preserved fragment...Jefferson was quoted in reference to a report of a meteorite fall; “. . .It may be very difficult to explain...of modes of meteorite origin, and possible genetic relations between different meteorite types. More... Paris Museum of Natural History, Center for Meteorite Studies of Arizona State University, Harvard and |
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| Agudo and A. H. W. Aten (Jr.}, Comision Nacional de Energia Atomica, Buenos Aires, Argentina An instrumental...224±O.045 Si/Al l5.6±l.6 l6.7±1.3 THE IRON METEORITE BARRANCA BLANCA H. J. Axon and D. Faulkner, Faculty...an aggregate of sulphides and polycrystalline taenite. The plessite is unusual in that it shows internal...boundaries and also at kamacite-taenite; kamaciteschreibersite and taenite-plessite locations. It appears...the microstructure. 257 THE BORGO SAN DONNINO METEORITE: MINERALOGY AND CHEMISTRY B. Baldanza and G. R |
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| 20;Co <0.02-2.0,0.08;P <0.01.Tetrataenite,like taenite, is cream-colored in reflected light, but under...grains in contact with kamacite, troilite, taenite, 'clear taenite' by Taylor and Heyand silicate. This occurrence...Albertsen et al.: tms l-20 Prn taenite grains in chondrites, nesosiderites, irons, and...tetrataenite rim occurrences size in adjacent cloudy taenite intergrowths. Massive and magnetic lamellar intricate...below 350'C in slow-cooledmeteoritesthat contain taenite, and is most abundant in mesosideritesand some |
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| Photomicrograph of thin (10am) section of the Andura meteorite, an olivine bronzite-chondrite contrast between...chondrule composition of the Allende a meteorite; the Pulsora meteorite and metamorphic equilibration...67943, 1, by 25 ol METEORITES THE ALLENDE History THE METEORITE: OF THE Putsora TION IN SOLAR...DATA ON EIGHT OBSERVED-FALL CHONDRITIC WITH METEORITE, METEORITES, by Roy S. Clarke, Jr., Eugene Jarosewich...Department With this introduction, it is convenient to de- scribe the operations of the different segments |
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| Society, 1997. Printed in USA. Mineralogy of meteorite groups ALANE. RUBIN Institute of Geophysics and...sulfides, and carbonates. In addition to kamacite and taenite, iron meteorites contain carbides, elemental C...structure and formed by a shear transformation from taenite during shock reheating and rapid cooling. The C...shocked ordinary chondrites. Secondary minerals in meteorite finds that formed during terrestrial weathering...including "pure iron" (kamacite), nickel-iron (taenite), graphite, schreibersite, troilite, daubreelite |
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| Apollo-l6 regolith Ao J. Bauman and John R. Devaney: Allende C-3 chondrite carbonaceous phase: Scanning electron...meteorites . Vo Fo Buchwald: Zerhamra, a new iron meteorite find from Sahara T. Eo Bunch, Martin Prinz, Klaus...Milton, A. Dube and M. S. Balasundaram: The Lonar meteorite crater, India L. H. Fuchs and E. Olsen: Composition...coexisting pentiandite and awaruite in the Allende meteorite Glenn I Huss and Ivan E. Wilson: A census...Mireille Christophe Michel-Levy: The Washougal meteorite . . . . . . . . . . . . . . . . . . . . . . . |
 | VARELA, Maria E., ZINNER, Ernst, KURAT, Gero, CHU, Hao-Tsu, HOPPE, Peter (2012) New insights into the formation of fayalitic olivine from Allende dark inclusions. Meteoritics & Planetary Science, 47 (5) 832-852 doi:10.1111/j.1945-5100.2012.01359.x | Journal (article/letter/editorial) |
| insights into the formation of fayalitic olivine from Allende dark inclusions Maria E. VARELA1*, Ernst ZINNER2...CHU4, and Peter HOPPE5 1 Instituto de Ciencias Astronómicas de la Tierra y del Espacio (ICATE) Av....combine a chemical and petrographic study of the Allende dark inclusion 4884-2B (AMNH, New York) and ATEM...ATEM studies of a fragment of the dark inclusion Allende AF (NHM, Vienna) and discuss an alternative way...in which fayalitic olivines could have formed. Allende dark inclusion 4884-2B contains a few aggregates |
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| Euhedral tetrataenite in the Jelica meteorite ALAN E. RUBIN Institute of Geophysics and Planetary Physics...surrounding silicate was still partly molten, eulaedral taenite with ~ 50 wt.% Ni began crystallizing in one of...Troilite nucleated at one edge of the euhedral taenite grain and began to crystallize at ~ 870~ At 320~...event. KEYWORDS:tetrataenite, troilite, Jelica meteorite, brecciation. Introduction M o s t metallic Fe-Ni...must have an appropriate bulk composition so that taenite is the liquidus phase in igneous systems or the |
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| and the Allende meteorite fell in Mexico, CV3 chondrites have played a major role in meteorite studies...more primitive than other chondrites, and because Allende contains numerous large, seemingly pristine and...carbonaceous chondrite fall, Allende quickly became the most widely studied meteorite, a title it still holds...holds today. Initially, studies of CAIs from Allende appeared to validate the recently developed equilibrium...metallic Fe,Ni and magnetite. McSween suggested that Allende, an oxidized CV3 chondrite, had experienced mild |
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| m. A sulfide vein in a refractory inclusion in Allende (CV3-oxidized) is enriched in Rh, Ru, and Os with...Re/Os and other siderophile element ratios in Allende CAIs. Fremdlinge in compact Type-A inclusions from...exhibit subsolidus exsolution into kamacite and taenite and minimal secondary formation of V-magnetite...schreibersite. Siderophile element partitioning between taenite and kamacite is similar to that observed previously...abundances of Fremdlinge in a Type-B CAI from Allende. They interpreted their results in the framework |
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| Y·8675 I matrix in close association with Ni-rich taenite and Corich mc:taI, and it was produced under a...chondrite, Allende. However, the details of the petrography of Y-86751 differ from those of Allende; olivines...those in Allende chondrules, spinels in Y-86751 are also more ferroan than those in Allende, and most...under conditions more oxidizing than those of Allende, which is a member of the oxidized subgroup of...the differences in chemical compositions between Allende and Y86751 components and the genetic relationships |
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| by the IMACNMNC, including 17 from the Allende CV3 meteorite (Ma, 2015a) and high-pressure phases such...ruthenosmiridim selenium steinhardtite stolperite sulfur taenite tetrataenite wairauite zhanghengite carbides beta-moissanite...␥-(Fe,Ni) (Ce,La,Ca)4 (Fe ,Mg) 2 (Ti,Fe )3 Si4 O22 taenite Mg3 (Si4 O10 )(OH)2 (Ni,Fe)5 (Si,P)2 talc tazheranite...newly-identified refractory mineral tistarite (Ti2 O3 ) in Allende along with corundum and khamrabaevite (TiC) grains...khamrabaevite (TiC) grains in a chondrule from the Allende CV3 chondrite (Ma and Rossman, 2009a). BSE image |
