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| CHEMICAL ANALYSIS OF THE MURCHISON METEORITE Eugene Jarosewich Smithsonian Institution Washington, D...meteorites that have been observed to fall. These are: Allende, type III carbonaceous chondrite; Ucera, Lost City...carbonaceous chondrite. Two of these meteorites, Allende and Murchison, are ofrare types and again very...diversified studies of these meteorites. The Allende meteorite (King et aI., 1969; Clarke et aI., 1971) remains...interesting and revealing studies. The Murchison meteorite fell September 28, 1969 near Murchison, Victoria |
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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... perovskite, spinel, taenite, chromite, and pentlandite, and in close proximity to nodules containing...polymict-brecciated HLgroup chondrites Leoville and Allende, and the present paper deals with a detailed description |
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| Ca3Ti2(SiAl2)O12, a new garnet mineral from the Allende meteorite: An alteration phase in a Ca-Al-rich inclusion...(FUN) Ca-Alrich inclusion (CAI) Egg-3 from the Allende CV (Vigarano type) carbonaceous chondrite. The...g/cm3. Hutcheonite is a new secondary phase in Allende, apparently formed by iron-alkali-halogen metasomatic...hutcheonite during the metasomatic alteration of the Allende CAIs suggests some mobility of Ti during the alteration...mineral, schorlomite group, garnet supergroup, Allende meteorite, carbonaceous chondrite, Ca-Al-rich inclusion |
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| Atmospheric collection of debris from the Revelstoke and Allende fireballs M. H. CARR U.S. Geologic Survey, Menlo...Abstract-In two separate events, Revelstoke and Allende, the air through which a fireball had been observed...aircraft and flown downwind from the site of the meteorite fall at altitudes of lO,OOO-12,000 m. From Revelstoke...types of irregular nickel-bearing particles. The Allende collections yielded only slightly more magnetite...and no nickelbearing particles. Revelstoke and Allende are believed to be representative of two different |
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| butianite (Ni6SnS2), two new minerals from the Allende meteorite: Alteration products in the early solar system...Type B1 Ca-Al-rich inclusion (CAI) ACM-2 from the Allende CV3 carbonaceous chondrite. The chemical composition...Ni6GeS2, butianite, Ni6SnS2, new minerals, Allende meteorite, CV3 carbonaceous chondrite, Ca-Al-rich inclusions...phenocrysts within the Type B1 CAI ACM-2 from the Allende CV3 chondrite. Nuwaite and butianite are the first...NUWAITE AND BUTIANITE, NEW SECONDARY MINERALS IN ALLENDE especially where there has been hydrothermal reworking |
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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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| CORDIERITE AND ALUMINOUS ORTHOENSTATITE IN THE ALLENDE METEORITET Lours H. Fucus, Argonne n"ational Laboratory...meteoritic occurrence of cordierite, in a nodule in the Allende Tlpe III carbonaceouschondrite, is reported. X-ray...formed as a highly fractionated system Lvithin the meteorite or as part of a chemical-pressure environment...environment foreign to that indicated for the meteorite. INrnotucuort The first meteoritic occurrenceof cordierite...AIIende chondrite. This meteorite, which fell near Parral, Chihuahua, Mexico on February 8, 1969,is a |
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| following fractions: HF,HCI-solubles (>98â, of the meteorite), âphuw Q.â a poorly characterized and an insoluble...with McSweenâs subclasses: two âoxidizedâ C3Vâs-Allende (LEWIS rt tri., 1975) and Grosnaja-have lower Ar...other respects, the 3 C3Vâs of this study resemble Allende. with only moderate differences. Phase Q contains...conditions, favoring uptake of CCFXe. Together with Allende, they cover at least two of the major subdivisions...1977a): Leoville and Vigarano are reduced. whereas Allende and Grosnaja are oxidized; all but Grosnaja have |
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| in calcium-aluminum-rich inclusions in the Allende meteorite LOUIS H. FUCHS* and MILTON BLANDER? Argonne...molybdenite in a meteorite have been made in two Ca-Al-rich inclusions in the Allende chondrite. The mineral...calcium-aluminum-rich inclusions (CAIâs) in the Allende meteorite. This mineral has not been previously recognized...molybdenite in several polished sections of the Allende matrix, in 30 chondrules and in 25 other CAIâs...anisotropit areas were noticed within pentlandite, in the Allende matrix and in one chondrule. They appeared |
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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...is consistent with the X-ray with sulfides (pentlandite and troilite) and carbides {copowder pattern...(1981)identifiedawa- l0 to 20 pm are associatedwith pentlandite, troilite, and ruite as Ni.Fe in the Parambu...isolated grains and as grains associatedwith pentlandite, also been used to refer to tetrataenite (NiFe) |
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| polycyclic aromatic hydrocarbons (PAHs) in the Allende and Murchison carbonaceous chondrites was investigated...gradients of PAHs are associated with specific meteorite features. The ratios of various PAH intensities...formation environments before incorporation into the meteorite body. Hence, carbonaceous chondrites are among...Representative âŽL2MS spectra from matrix areas of the (a) Allende and (b) Murchison samples. Parent PAH peaks are...less than PAH signals from the interiors of the meteorite samples. heated to âŹ1400 to 2400 K (MacPherson |
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| Great B~itam U-Th-Pb and RbSr systematics of Allende and U-Tb-Pb systematics of Orgueil MITSUNOBUTATSUMOTO...white and pinkish-white aggregate separates of Allende are five to ten times higher than those of the...matrix is less radiogenic than that of the whole meteorite, whereas lead in Ca- and Al-rich chondrules and...might correspond to the agglomeration age of the meteorite and a time of probably later disturbance, respectively...however, not fit on the chord. The Rb-Sr data of Allende did not define an isochron suggesting tha the RbSr |
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| electron microscopy of chondrule minerals in the Allende meteorite : constraints on the thermal and deformational...solar nebula prior to or during accretion of the meteorite parent bodies. The textures and mineralogy of...Miiller et al. : Chondrule minerals in the Allende meteorite heat source, precursor material, cooling...defects, precipitates, grain and phase boundaries). Allende is one of the best studied meteorites, but little...have chosen the Allende CV carbonaceous chondrite for our study, because this meteorite belongs to the |
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| in USA Organic compounds in the Murchison and Allende carbonaceous chondrites studied by photoionization...Abstract-Organic compounds in the Murchison (C2M) and Allende (CV3) carbonaceous chondrites were analyzed by...anthracene and fluoranthene) in the Murchison meteorite were determined to be 9 and 12 lLg/g, respectively...sector mass analyzer) of 20-40 mg ofthe same meteorite material were obtained to verify that the 118...REPORT THE FIRST ANALYSES of the Murchison and Allende meteorites by SALI (surface analysis by laser ionization; |
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| com/locate/gca Experimental aqueous alteration of the Allende meteorite under oxidizing conditions: Constraints on...Planetary Sciences, MSC03-2040, University of New Mexico, Albuquerque, NM 81731, USA Received 26 January...experimental study of the aqueous alteration of the Allende CV3 carbonaceous chondrite under highly oxidizing...in order to examine the alteration behavior of Allendes anhydrous mineralogy. The experiments were carried...ratios ranging from 1:1 to 9:1. Uncrushed cubes of Allende were used so that the spatial relationships between |
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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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| Prmted in Great Br~tam Noble gases in the Allende and Abee meteorites and a gas-rich mineral fraction:...NeKrXe in Allende (C3V) and an Allende residue insoluble in HF-HCI, and Xe in Abee (E4). In, Allende, chromite...8.7) and anomalous release it at -850°C (bulk meteorite) or 1000°C (residue). Mineral Q. containing most...as follows over the peaks% the release curve: Allende 1000â (75%), 1300â (25%); Abee (data of HOHENBERG...possible candidates are troilite and silicates for Allende, and djerfisherite, troilite and silicates for |
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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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| THE ADELAIDE METEORITE R. Davy* and S.G. Whitehead Australian Mineral Development Laboratories (A mdel)...analysis of the newlydiscovered Adelaide meteorite is given. This meteorite is a C2 chondrite with C3 affinities...affinities. However, the meteorite is unlike both C2 and C3 chondrites in having a CalAI ratio of 0.47. The...closer to the Vigarno than the Ornans subtype. The meteorite is unusual in that it contains primary magnetite... In many other respects this meteorite resembles the Allende meteorite. INTRODUCTION In June 1972 an |
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| amorphous feldspathic material, and, in some cases, pentlandite (HUSS ef al., 1981; FUJIMAIU et al., 1981; NAGAHARA...grains of F&-rich olivine, Ca-rich pyroxene, pentlandite, metallic Fe,Ni, nepheline, sodalite, phyllosilicates...only negligible to relatively mild heating in meteorite parent bodies. Thus, the study of chondrule rims...microscopically in transmitted and reflected light: Allende, CV3 (USNM 4744-l and 4744-2, LC 130 and 131);...chondrules in Allende, Vigarano and Leoville; one radial pyroxene chondrule in Allende is surrounded |
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| Netherlands [61 IRON-NICKEL SULFIDES IN THE MURCHISON METEORITE AND THEIR RELATIONSHIP TO PHASE Q1 JOHN F. KERRIDGE...version received January 2, 1979 Pentlandite from the Murchison meteorite survivesHF-HCIattack and dissolvesin...chondrite fission xenon. However, identification of pentlandite with that phase is problematical in view of apparently...taking the residue following dissolution of the meteorite in HF-tJC1 and treating it with HNO3; Q dissolves...it has been shown that Q, at least in the Allende meteorite, consists of two phases; Q 1, soluble in cold |
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| origins-V. Search for fission fragment recoils in Allende sulfides ROY S. LEWIS, JAN HERIW;EN*, LEO ALAERTS~and...Abstract-Three troilite- and pentlandite-rich samples from the Allende C3 chondrite were analyzed for...slight variations in some Te isotope abundances in Allende carbon fractions on the basis of neutron activation...during one of the reheating episodes experienced by Allende. which were intense enough to disturb the Rb-Sr...main sulfides of the meteroritc. troilite and pentlandite. Two minerals of approximately the composition |
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| Hg and Pt-metals in meteorite carbon-rich residues: suggestions for possible host phase for Hg* S. JOVANOVICand...oxide residual phases have been isolated from Allende and Murchison by acid demineralization for the...enrichments of Hg and Pt-metals were found in Allende but not in Murchison residues. Hg-release profiles...same as that for Hg in troilite from an iron meteorite. This is further support for a sulfide host phase...enriched in carbon-residue-related phases in the Allende meteorite. (For instance; LEWIS et al., 1975; REYNOLDS |
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| oil167037/84/s3.00 + .m Thallium and lead in the Allende C3V carbonaceous chondrite. A study of the matrix...abundances have been measured in various phases from Allende and the distribution and siting of these elements...magnetic phases and depkted in Allende pentlandite relative to the whole meteorite. The Tl-%Pb abundance diagram...the origin and the Orgueil and Murchison whole meteorite data. The deviation of magnetic matrix fractions...as an explanation for the apparent excess Pb in Allende. The apparent initial Pb isotopic compositions |
