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Solar System: The First 180 Million Years Allende Meteorite. Photo courtesy of J ames St. J ohn Charles K...K, followed by grossite (CaAl4O7) at 1,660 K, gehlenite (Ca 2 Al 2 SiO7 ), spinel (MgAl 2O 4 ), and clinopyroxene...individual chondrules has not been reported in bulk meteorite analyses (Zhai et al. 1996). Further, this heterogeneity...of a glass-rich chondrule from the Murchison meteorite, with a texture that strongly indicates that it...Chondrules in unequilibrated chondrites (e.g. the Semarkona meteorite) that experienced minimal degrees of parent-body |
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chondrites (e.g., Acfer 094 and Adelaide), and in the Semarkona LL3.0 ordinary chondrite (e.g., Grossman and Steele...experiments (e.g., Nomura and Miyamoto 1998) show gehlenite (the main component of melilite in most refractory...and Grossman 1984). Under conditions wherein gehlenite breaks down, diopside and spinel are unaffected...petrology of a hibonite inclusion from the Murchison meteorite. Geochimica et Cosmochimica Acta 46:575–595. Blatt...chemistry of Ca-rich inclusions in the Allende meteorite. Geochimica et Cosmochimica Acta 39:433–454. Grossman |
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Clermont-Ferrand F-63038, France 4 Center for Meteorite Studies, School of Earth and Space Exploration...d’Histoire Naturelle (Paris, France) and the NASA Meteorite Working Group (Houston, USA). Table 1 provides...Measurements We measured modal abundances of CAIs from meteorite slices (either raw from cut or polished), polished...carbonaceous chondrites studied in this study. Meteorite name Abbreviation Group Collection Kaba Bali...National d’Histoire Naturelle, Paris. MWG = NASA Meteorite Working Group, Houston. a See Sample section for |
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Italy NT Chieti NT Marsica AJjsaroka Fault Abee Meteorite aa Taylor County Texas Texas Southwestern U...River IN Index Indian states as applica¬ ble. BT India SA Bihar SA West Bengal Ajman Sheikdom. One of federation...Peninsula Ajmer City and district in central Raja¬ sthan, NW India. BT Rajasthan BT India akaganeite BA oxides...Endicott Mountains NA Fairbanks Alaska NA Fairbanks District NT Fairweather Fault NT Glacier Bay NA Glacier...Interior Seaway NX Western Overthrust Belt SA Abee Meteorite SA Altyn Limestone SA Banff Formation SA Bearpaw |
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Society, 1997. Printed in USA. Mineralogy of meteorite groups ALANE. RUBIN Institute of Geophysics and...shocked ordinary chondrites. Secondary minerals in meteorite finds that formed during terrestrial weathering...numbers of meteorites (including members of new meteorite groups; Table 1) from hot and cold deserts, the...variations 23 1 A. E. Rubin 232 TABLEI . Meteorite classification. Chondrites Carbonaceous chondrites...Wasson and Kallemeyn, 1990). 233 Mineralogy of meteorite groups TABLE 2. Minerals in meteorites. ~~ ~ |
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Planetary Sciences. He teaches chemistry and performs meteorite research, and is currently involved in creating...sediments Potential meteorite parent bodies 2.1 Asteroids as potential meteorite parent bodies 2.2 Impact...Spectra of asteroids Distribution of asteroid and meteorite classes Texture of gas-rich regolith breccias...of hypothetical ejecta blanket Structure of a meteorite parent body Asteroids and their surfaces Fraction...C chondrites Asteroids and water The asteroid–meteorite link Asteroids visited by spacecraft Regoliths |
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Planetary Sciences. He teaches chemistry and performs meteorite research, and is currently involved in creating...sediments Potential meteorite parent bodies 2.1 Asteroids as potential meteorite parent bodies 2.2 Impact...Spectra of asteroids Distribution of asteroid and meteorite classes Texture of gas-rich regolith breccias...of hypothetical ejecta blanket Structure of a meteorite parent body Asteroids and their surfaces Fraction...C chondrites Asteroids and water The asteroid–meteorite link Asteroids visited by spacecraft Regoliths |
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California, Los Angeles, CA 90095-1567, USA c Division of Geological and Planetary Sciences, California...primitive chondrites (e.g., L3.0 NWA 7731; LL3.0 Semarkona) are interpreted to be products of the processes...the IMACNMNC, including 17 from the Allende CV3 meteorite (Ma, 2015a) and high-pressure phases such as bridgmanite...shannonite peridot; chrysolite paqueite perrierite gehlenite melilite pumpellyite thortveitite wadsleyite cyclosilicates...fluor-richterite forsterite galena galileiite gehlenite geikielite gentnerite (not approved) gersdorffite |
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METEORITE MINERALOGY Meteorites are fascinating cosmic visitors. Using accessible language, this book...book documents the history of mineralogy and meteorite research, summarizes the mineralogical characteristics...photographs of meteorite minerals, and with an accompanying online list of meteorite minerals, this book...book provides a useful resource for meteorite researchers, terrestrial mineralogists, cosmochemists,...students in these fields. a l a n e . r u b i n is a meteorite researcher who recently retired from the University |
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studies, Hutchison et al. (1985) suggested that Semarkona (LL3) bore signs of alteration and may in fact...types 2 and 3. We present here TEM studies of Semarkona, Bishunpur, Chainpur, Krymka, Sharps and Tieschitz...metamorphism/metasomatism in ordinary chondrite parent bodies. Semarkona shows the greatest alteration and primarily in...69-1.75 1.49-1.52 1.29-1.32 0.97-0.99 0.86-0.88 Semarkona Bishunpnr range range 4.51-4.62 2.53-2.65...The considerable redistribution of elements in Semarkona suggests the presence of a grain boundary fluid |
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rate ratio of Mg/(Mg þ Fe) in a section of the Semarkona LL3.0 chondrite, constructed from magnesium and...it, it was just at this time that the Allende meteorite fell and the minerals contained within the so-called...Silliman Chair and being curator of the Yale meteorite collection. In a continuation of Karl’s foray...chemical histories both in the solar nebula and in meteorite parent bodies. It was in CAIs that the great discovery...interstellar medium, in the solar nebula, in meteorite parent bodies, and during atmospheric entry. Each |
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magnetite and pyrrhotite grains in the martian meteorite are of magnetotactic bacterial origin. A6 Meteoritics...obtained from NASA; additional chips from each meteorite were examined petrographically at the Smithsonian...iron in a weathered sample of an equilibrated meteorite, with weight gains predicted for an unweathered...the carbonate globules present in the martian meteorite ALH 84001 have detected polycyclic aromatic hydrocarbons...origin and were claimed to be indigenous to the meteorite, perhaps derived from an ancient martian biota |
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OF THE METALLIC PHASES IN THE ALMAHATA SITTA METEORITE (FRAGMENT#051). Y. A. Abdu1, A. M. Gismelseed2...Khartoum, Sudan. Introduction: The Almahata Sitta meteorite fall was unique because asteroid 2008 TC3, the...large fragments of the 1947 Sikhote-Alin iron meteorite [2] fallen in the waterlogged deposits. In the...impact structures containing large boulder-sized meteorite rocks may be present. References: [1] Anfinogenov...Fonton S. S. 1959. In: The Sikhote-Alin iron meteorite shower. Part I. Ed.: V. G. Fesenkov and E. L. |
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grains (Hoppe et al., 1995) from the Murchison meteorite are compared to astronomical measurements of the...bulk samples of SiC extracted from the Murchison meteorite. Isotopic ratios are relative to the reference...result of isotopic equilibration, either on the meteorite parent body or in the laboratory. Apparently,...circumstellar silicon carbide grains from the Murchison meteorite. Meteoritics 30, 679–693. Amari S., Lewis R. S...interstellar graphite grains from the Murchison meteorite indicate a massive star origin. Astrophys. J. |
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Nebula 37 39 6l 62 63 67 69 70 71 72 73 74 THE METEORITE EVIDENCE 83 The Most Ancient Samples Presolar...whether a simi¬ lar mass distribution, with its division into terrestrial and giant planets, is typical...opinion was based on meteoritic evidence. An iron meteorite fell near Aegospotamis, a stream in ancient Thrace...departed from the Greek philosophers with their division between the Earth and the heavens, by considering...version, involving seven compo¬ nents, is based on meteorite mineralogy [50]. The philosophy behind this approach |
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grains (Hoppe et al., 1995) from the Murchison meteorite are compared to astronomical measurements of the...bulk samples of SiC extracted from the Murchison meteorite. Isotopic ratios are relative to the reference...result of isotopic equilibration, either on the meteorite parent body or in the laboratory. Apparently,...circumstellar silicon carbide grains from the Murchison meteorite. Meteoritics 30, 679 –693. Amari S., Lewis R....interstellar graphite grains from the Murchison meteorite indicate a massive star origin. Astrophys. J. |