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| (55.0% type A, 39.5% spinel-pyroxene-rich, 4.4% hibonite-rich, and several type C and anorthite-spinelrich...cm2 surface area). This is the first report of hibonite-rich inclusions in Ningqiang. They are texturally...aggregates of euhedral hibonite single crystals, fine-grained aggregates of subhedral hibonite with minor spinel...spinel, and hibonite ± Al,Ti-diopside ± spinel spherules. Evidence of secondary alteration is ubiquitous...occurrences of Ca-rich armalcolite and geikielite in a meteorite, and the second occurrence of phase T (an unidentified |
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| Krot et al. 2008) found that most grossiteand hibonite-bearing CAIs lack excess of 26Mg, the decay product...Oman in 2005 (Bartoschewitz et al. 2005). This meteorite was once classified as an anomalous E-chondrite...polymineralic. These CAIs can be grouped into hibonite-rich, grossite-rich, melilite±spinelrich, fassaite±spinel-rich...have nearly equivalent abundances of grossite and hibonite (e.g., A0006 and A0007). Low-temperature secondary...phyllosilicate minerals, were not observed in the CAIs. Hibonite-rich CAIs (9% of the total), 40–55 µm in diameter |
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| chondrites (e.g., Acfer 094 and Adelaide), and in the Semarkona LL3.0 ordinary chondrite (e.g., Grossman and Steele...Mineralogy, textures and mode of formation of a hibonite-bearing Allende inclusion. Proceedings, 9th Lunar...mineralogy and petrology of a hibonite inclusion from the Murchison meteorite. Geochimica et Cosmochimica...chemistry of Ca-rich inclusions in the Allende meteorite. Geochimica et Cosmochimica Acta 39:433–454. Grossman...1976. Amoeboid olivine aggregates in the Allende meteorite. Geochimica et Cosmochimica Acta 40:149–155. Grossman |
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| Amorsson S. ~stmann~o~r H. Ok&son J. Sigvaldason G. E. INDIA Krishnaswami S. ISRAEL Aizenshtat 2. Ben-Yaakov...MARTI:Nucleogenic noble gas com~nent~ in the Cape York iron meteorite 163 Book Reviews S. A. MORSE:“Lunar Bases and...244Pu,5%, REE, and trace element abundances in hibonite grains from CM and CV meteorites ~ . . .. . ....forsterite-bearing Ca-Al-rich inclusions in the Aliende meteorite . LAWRENCE R. BERNSTEIN and GLENNA. WAYCHUNAS:...Organic Ge~hemist~ Division, Minutes 1028 . 1030 Organic Geochemistry Division, Slate of Officers |
 | Swindle, T.D, Grossman, J.N, Olinger, C.T, Garrison, D.H (1991) Iodine-xenon, chemical, and petrographie studies of Semarkona chondrules: Evidence for the timing of aqueous alteration. Geochimica et Cosmochimica Acta, 55 (12) 3723-3734 doi:10.1016/0016-7037(91)90070-l | Journal (article/letter/editorial) |
| Iodine-xenon, chemical, and petrographic studies of Semarkona chondrules: Evidence for the timing of aqueous...analyses on seventeen chondrules from the Semarkona meteorite (LL3.0) primarily to study the relationship...Although theoretical models of aqueous activity in meteorite parent bodies have been constructed (see review...abandoned). EXPERIMENTAL PROCEDURE A 4-g sample of Semarkona from the Smithsonian Institution (USNM 1805) was...13.9 59 Au ppb TABLE I. Bulk compositions of Semarkona chondrulcs. The mass shown under each sample name |
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| Solar System: The First 180 Million Years Allende Meteorite. Photo courtesy of J ames St. J ohn Charles K...It starts to react with Ca in the gas to form hibonite (CaAl12O19) at 1,700 K, followed by grossite (CaAl4O7)...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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| 1973) and, more specifically, in the Blue Angel hibonite inclusion (ARMSTRONGet al., 1982), whilst in Renazzo...originally by EPSTEINand MAYEDA (1953) to obtain PO Meteorite carbonate isotopic composition of water samples)...and 566 ppm for the two extractions. Neither meteorite was studied with the two-step extraction technique...+17.0 nd ALHA 77215 LX? 29.840 113 nd ad Semarkona LL3.0 24.340 23.050 1730 1256 -5.7 -7.4 c9... nd Hamler LL4 27.800 297 -4.8 +17.0 Meteorite carbonate isotopic composition 2859 usually |
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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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| 6. TABLE 3 The yields (relative to the bulk meteorite) and the peak isotopic compositions of the heavy...temperatures for carbon and nitrogen are also listed Meteorite (ppm) 2. T e c h n i q u e s Most of the presolar...are greater than petrologic type 3.6 Meteorite and type Semarkona (LL3.0) Bishunpur (L/LL3.1) Krymka (LL3...have been calculated relative to the bulk meteorite. Semarkona Bishunpur Krymka Inman Tieschitz 1.6 1...r a t i o n residues 1 - 2 g samples of each meteorite were given alternate t r e a t m e n t s i n 9 |
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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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| in the case of four chondrules removed from Semarkona (type 3.0) and Krymka (type 3.1) , by instrumental...the major chondrule groups Al, A2, and Bl in Semarkona, group A5 is a primary group whose presence provides...with a scheme that is independent of the host meteorite. The compositional classification scheme for chondrules...are present in the essentially unmetamorphosed Semarkona chondrite (Al, A2, A5, and Bl, which can be considered...consistent with the bulk composition of the host meteorite. Group A5 are unique in appearing in both equilibrated |
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| Matrix region of the carbonaceous chondrite CO3 meteorite ALHA77307 (Allan Hills, Victoria Land, Antartica)...that is not dissimilar in texture to primordial meteorite matrix. The abundance of GEMS demonstrates that...organic molecules that make up to 2% of the total meteorite by mass in CM (carbonaceous chondrite Mighei group)...identified organic globules in the Tagish Lake meteorite that were almost certainly primordial disk components...and Ti, including spinel, melilite, perovskite, hibonite and corundum (Ebel 2006). Other objects with a |
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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...ferropseudobrookite geikielite grossite hematite hercynite hibonite hibonite-(Fe) ilmenite kamiokite kangite krotite lakargiite...hexaferrum hexahydrite hexamolybdenum hibbingite hibonite hibonite-(Fe) hollandite hollisterite honessite hutcheonite |
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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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| 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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| obtained for chondrules from the Bishunpur and Semarkona meteorites, although no chondrule with (26Al/27Al)0... unusual chondrules as found in the CB Gujba meteorite (Krot et al., 2005). Any consistent model of chondrule...were acquired from only two LL-chondrites, the Semarkona and Bishunpur meteorites. Systematic age differences...recently suggested for some Type-II chondrules from Semarkona (Baecker et al., 2017). Recent technical advances...previously described method (Villeneuve et al., 2009). Meteorite chips and San Carlos olivine were mounted together |
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| matrices of the unequilibrated ordinary chondrites Semarkona, Bishunpur, Chainpur, and Krymka. The rims appear...and Wasson, 1982, 1983), in which case corundum, hibonite, melilite, and spine1 might also be expected to...abundances of forty elements in rims and matrices from Semarkona (LL3.0), Bishunpur (LL/L3.1), Krymka (LL3.1),... The only meteorite in which no distinction was made between rims and matrix was Semarkona. Apparently...matrix and rims are rather more complicated. In Semarkona, Bishunpur, and Chainpur matrices the distribution |
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| was further strengthened by the large Allende meteorite fall in 1969 with its abundant calcium-aluminum-rich...and Mason and Wiik (1962), and for the other meteorite classes from Wasson and Kallemeyn (1988). primitive...2003; Bonal et al. 2004). In the OCs, compared to Semarkona (LL3.0), Bishunpur (L/ LL3.1) and Krymka (LL3...IOM, respectively (Alexander et al. 1998). Even Semarkona has experienced some metamorphism (Grossman and...1993), with a similar degree of metamorphism to Semarkona (Grossman and Brearley 2005), but its bulk alkali |
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| St. Louis MO 63130, USA. The present state of meteorite chemistry as established by Wasson and Kallemeyn...including Mg, Si, Sr. the Earth lies close to CI meteorite as previously established. The estimate of si...ratios in the Earth's mantle. as well as on the meteorite trend permils us to estimate the composition of...difference in their relative abundances among meteorite classes reflects differences in the dust!gas ratio...HIGH-DENSITY INTERSTELLAR GRAPHITE FROM THE MURCHISON METEORITE. S. Amari 1.2, E. Zinner), and R. S. Lewis-, IMcDonnell |
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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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| are spinel (MgAl2O4) and corundum (Al2O3), but hibonite (CaAl12O19) and possibly titanium oxide have also...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,...Choi et al., 1998; Zinner et al., 2003), and 5 hibonite grains (Choi et al., 1999; Krestina et al., 2002) |
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| Clermont-Ferrand F-63038, France 4 Center for Meteorite Studies, School of Earth and Space Exploration...composition (e.g., Grossman 1972), such as perovskite, hibonite, spinel, fassaite, melilite, and anorthite. Consequently...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 |
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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 |
 | Wang, Ying, Hsu, Weibiao, Li, Xianhua, Li, Qiuli, Liu, Yu, Tang, Guoqiang (2016) Petrology, mineralogy, and oxygen isotope compositions of aluminum-rich chondrules from CV3 chondrites. Meteoritics & Planetary Science, 51 (1) 116-137 doi:10.1111/maps.12590 | Journal (article/letter/editorial) |
| for the origin of ARCs. Ningqiang is a unique meteorite which has been classified as CV3 anomalous, CK3...d17O = 12.2&; Jabeen et al. 1998) for spinel and hibonite. It is not easy to have standards that cover all...pigeonite; Cpx, clinopyroxene; Ne, nepheline; Hib, hibonite; Mel, melilite; Chon, chondrule; Inter, chondrule-CAI...cordierite and aluminous orthoenstatite in the Allende meteorite. American Mineralogist 54:1645–1653. Galy A.,...meteorites and Allende chondrules. Antarctic Meteorite Research 11:122–135. Jones R. H. and Brearley |
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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 |
