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| http://meteoritics.org 26Mg excess in hibonites of the Rumuruti chondrite Hughes 030 A. BISCHOFF1* and G. SRINIVASAN2...revised form 12 September 2002) Abstract–The Rumuruti chondrites (R chondrites) constitute a new, well-established...calciumaluminum inclusion was found in the Hughes 030 meteorite. Here, we report mineralogical and isotopic data...in the nebula before their incorporation into meteorite parent bodies. A systematic study of the petrographic...solar nebula and regions from which distinct meteorite The R chondrites were established nine years |
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| http://meteoritics.org Ca,Al-rich inclusions in Rumuruti (R) chondrites Surya Snata ROUT and Addi BISCHOFF...2007; revision accepted 29 March 2008) Abstract–Rumuruti chondrites (R chondrites) constitute a well-characterized...search for and analysis of Al-rich objects in Rumuruti chondrites. We studied 20 R chondrites and found...Na,Al-(Cl)-rich alteration products; abundant perovskite), whereas others were highly altered by nebular...of FeO and ZnO in spinel, ilmenite instead of perovskite, abundant Na,Al(Cl)-rich alteration products) |
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| homepage: www.elsevier.de/chemer Invited review The Rumuruti chondrite group Addi Bischoff a,∗ , Nadia Vogel...October 2010 Accepted 20 February 2011 Keywords: Rumuruti R chondrites R chondrite mineralogy Noble gases...Al-rich inclusions a b s t r a c t Since 1994, the Rumuruti (R) chondrites have been recognized as a new,...(December, 2010). This group is named after the Rumuruti meteorite, the first and so far the only R chondrite...∼2.7 for R chondrites is the highest among all meteorite groups, and the mean oxygen isotope composition |
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| chemical compositions of Al-rich objects from Rumuruti (R) chondrites: Implications for their origin...the Solar Nebula and the early solar system. The Rumuruti (R) chondrites, formerly called the ‘‘Carlisle...Weisberg et al., 1991), are named after the Rumuruti meteorite, the first, and so far only R chondrite fall;...abundance of olivine, and high D17O of 2.7% (Rumuruti proper has the highest D17O of 2.88%) (Schulze...terrestrial alteration products. (c) In some inclusions perovskite is rimmed by ilmenite. (d) Sometimes the whole |
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| The Mbale meteorite shower &J;Fkens & 8 others, Meteoritic& 2%2), 19% Pp _ The Divnoe meteorite: petrology...cumulate orthopyroxenite member of the martian meteorite clan D. W. Mittlefehldt, Meteoritics, 29(2), 1994... pp 214-221 Pecora Escarpment 91002: a member Rumuruti (R) chondrite group A. E. Rubin & G. W. 1994,...Meteoritic& 29(2), Acfer 217 - a new member of the Rumuruti chondrite group(R) $& $choff & others. Meteoritics...Meteoritics, 29(2), Mineralog and chemistry of Rumuruti: meteorite 1all of the new R chondrite group 1994. |
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| adhering matrix were separated from the Allende meteorite. After bulk chemical analysis by instrumental...olivine grain was even identified in the Rumuruti meteorite (Schulze et al., 1994). Rumurutiites are...forsterite and associated phases from the Allende meteorite, which exclude an origin of refractory forsterite...crystallization within chondrules sampled in the Allende meteorite. Refractory forsterite found within chondrules...ANALYTICAL PROCEDURES Ten samples from the Allende meteorite containing refractory forsterite with very low |
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| sharp, but irregular interfaces with the host meteorite and have characteristics which suggest that formed...from hot deserts. The 26AI concentration in a meteorite depends upon different parameter like the exposure...analyzed sample and the terrestrial age of the meteorite. Our data contributes to the understanding of...production rate characteristic for the corresponding meteorite class. We do not find extremely low 26AI concentrations...order to reconstruct the irradiation history of a meteorite in detail, it is essential to analyze other cosmogenic |
