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| Carbonaceous chondrites, the most primi- tive of all meteorite types, have solar-like compositions, and contain...examples of which include the unique Efremovka meteorite in the Meteorite Collection of the Russian Academy... Ca–Al-RICH INCLUSIONS IN CARBONACEOUS CHONDRITES 389 Meteorite matrix Melilite Wark–Lovering rim Fine-grained...carbonaceous chondrite and FTA CAI 33E from the Efremovka (CV3) chondrite, containing UR CAIs 3N-24 and...NWA 3118 (CV3) meteorite; (b) fluffy type A (FTA) CAI 33E from Efremovka (CV3) meteorite; (c) type B CAI |
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| calcium-aluminum-rich inclusions from the reduced CV3 chondrite Efremovka ALEXANDER N. KROTI*, ALEXANDER A. ULYANOV1,2,...type B CAI (E48) from the reduced CV3 chondrite Efremovka, which is less altered than Allende. In contrast...contrast to the Allende accretionary rims, those in Efremovka consist of coarse-grained ( 2 0 4 0 ym), anhedral...accretionary rims. We infer that accretionary rims in Efremovka are more primitive than those in Allende and formed...andradite, wollastonite, and hedenbergite from the Efremovka rims may indicate that these rims sampled different |
 | Ivanova, Marina A., Petaev, Michail I., Macpherson, Glenn J., Nazarov, Michail A., Taylor, Lawrence A., Wood, John A. (2002) The first known natural occurrence of calcium monoaluminate, in a calcium-aluminum-rich inclusion from the CH chondrite Northwest Africa 470. Meteoritics & Planetary Science, 37 (10) 1337-1344 doi:10.1111/j.1945-5100.2002.tb01032.x | Journal (article/letter/editorial) |
| proximity to the CAI in this very metal-rich meteorite. Therefore we do not attribute significance to...The CaA1204-rich zone is in turn enclosed in a region consisting mostly of grossite with abundant included...CaA1204-bearing CAI was found in NWA 470, a new meteorite find recovered in Morocco in 1999 and recently...as a CH chondrite (Ivanova et al., 2001a). The meteorite is slightly weathered (grade Wl), has weakly developed...5 illustrates the liquidus relationshps in the silica-poor half of the system Ca0-A1203-Si02, which has |
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| l6-m.y.-old structure formed by the impact of a meteorite with the Earth. The long history of geological...ISOTOPE FRACTIONATION IN THE E2 CAI TYPE A FROM THE EFREMOVKA CV3 CHONDRITE. S. V. Afanassiev', S. G. Simakinz...type A CAI is one of the largest CAIs of the Efremovka Chondrite. The inclusion has been studied for...Zinc is exclusively located within the FeNisulfide region. This observation complicates the discussed models...SEA (GSS), EGYPT: AN INTERESTING RESERVOIR OF METEORITE FINDS. A. A. Barakatl, V. de Michele,, G. R. Levi-DonatP |
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| if the dust (1-10 JIm) in the chondrule-forming region experienced similar conditions to chondrules (100-1000...be possible to explain rim, matrix, and bulk meteorite refractory and common lithophile compositions...extracted presolar diamonds from the Allende meteorite by the method described in [I]. The optical properties...CRYSTALLIZATION OF PYROXENE AND SPINEL IN GABBROIC LUNAR METEORITE ASUKA 881757. T. Arai, H. Takeda, and P. H. Warren...University of Tokyo, Hongo, Tokyo 113, Japan. Lunar meteorite Asuka (A)88 1757 is a distinct new type of low-Ti |
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| compact group of bodies and form the stable "meteorite swarm" in resonant orbit (Hughes, 1982). A small...from the recent cosmic-ray irradiation of the meteorite; the rest presumably comes from a presolar cosmic-ray...Interstellar amorphous carbon in the Murchison meteorite: Carrier of neon-E(L). Sachiko Amari,' Edward...other than the suggestion that the ice in this region is probably close to a steady state condition....movement of the ice with some ice dropping into the meteorite concentration zone of the Main Icefield. The majority |
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| 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...realization in the early 1970s that there are natural meteorite concentration mechanisms at work there. There |
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| MÖSSBAUER SPECTROSCOPY OF OLIVINES FROM THE D’ORBIGNY METEORITE Y. A. Abdu1, M. E. Varela2 and F. C. Hawthorne1...structural OH bands are observed in the OH-stretching region (3800-3000 cm)1) for all samples. Mössbauer spectroscopy...group of achondrites notable for their critical silica undersaturation, lack of shock metamorphic features...(d13C approximately 0 to +5&) lining vugs in the meteorite. There are also differences in magmatic carbon...of the Meteoritical Society: Abstracts 5022 METEORITE IMPACT CRATERS IN SOUTH AMERICA: A BRIEF REVIEW |
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| for thermal metamorphism and differentiation of meteorite parent bodies in the early solar system, that...routine! In the case of meteorites, every new meteorite was analyzed when the sample became available...of a deep-seated rock by glacier action, or a meteorite impact, or exposing a previously shielded rock...exposed on the surface due to the impact of a meteorite; (iv) cosmic ray shielded rocks exposed by glacier...exposed due to the impact of the Canyon Diablo iron meteorite (Nishiizumi et al 1991b), producing the Meteor |
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| position of 56Fe; and (iv) the abundance peaks in the region past iron at the neutron closed shell positions...mixing caused by the convection, the entire unstable region evolves essentially chemically homogeneously—replenishing...of burning region (central or shell burning) and depleting the fuel elsewhere in that region at the same...burning of this fuel then commences outside that region. Table 1 summarizes the burning stages and their...maximum temperatures that have been reached in each region in the preceding hydrostatic burning stages (Table |
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| Science Tunis, Tunisia, 4 Meteorite Laboratory Lehmweg Gifhorn, Germany, 5 Meteorite Recon Mühlendamm Hamburg...calculation of meteorite flux is possible [4]. Following previous estimation of meteorite flux based on...geographical and morpho-structural district located in NW Argentina. This region is characterized by an extremely...structures in the alluvial fan, or the result of a meteorite shower. Their age, whatever the event is, is very...ANALYSIS (INAA) FOR ELEMENTAL COMPOSITION OF FRESH METEORITE FALL IN ORISSA, INDIA (2003). B. Adur, H.B. Mali |
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| conundrum while analysing the Efremovka meteorite found in Kazakhstan in 1962. It contains several c...team found that the minerals trapped within the meteorite had two distinct D/H ratios. Some components had...had encountered traces of ESO / L. CA LÇA DA Meteorite evidence: Earth was born with its water Two...the large quantities of dust that obscure this region in visible light, radio waves reveal a scene teeming...emits isolated, nanosecondslong ‘shots’ from a region just a few dozen metres across, perhaps via magnetic |
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| position of 56Fe; and (iv) the abundance peaks in the region past iron at the neutron closed shell positions...mixing caused by the convection, the entire unstable region evolves essentially chemically homogeneously—replenishing...of burning region (central or shell burning) and depleting the fuel elsewhere in that region at the same...burning of this fuel then commences outside that region. Table 1 summarizes the burning stages and their...maximum temperatures that have been reached in each region in the preceding hydrostatic burning stages (Table |
 | | Report (volume) |
| .. 149 Exposure ages and dynamical models of meteorite delivery .......................................first discovered 129Xe excesses in the Richardton meteorite, then wrote that astonishing paper entitled “The...first discovered 129Xe excesses in the Richardton meteorite, then wrote that astonishing paper entitled “The...sector mass spectrometer (Clarke et al. 1969). Meteorite research has made particular demands upon noble...noble gases inherited from the upper mantle source region, which is dominated by olivine and pyroxenes. However |
