 | | Journal (article/letter/editorial) | | THE ADELAIDE METEORITE R. Davy* and S.G. Whitehead Australian Mineral Development Laboratories (A mdel)...Frewville, South Australia 5063 G. Pitt Department ofMines Greenhill Road, Eastwood, South Australia 5063...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...closer to the Vigarno than the Ornans subtype. The meteorite is unusual in that it contains primary magnetite |  | | Journal (article/letter/editorial) | | includes Kakangari (Graham and Hutchison, 1974), Adelaide (Davy et al., 1978; Brearley, 1991), Bench Crater...from a chip of the meteorite that was kindly provided by the Antarctic Meteorite Working Group. The sections...it was distributed heterogeneously through the meteorite, which are observations consistent with those...redlbrown staining is pervasive throughout the meteorite. Reflected light microscopy shows that thin veins...essentially forms a continuous groundmass within the meteorite (Fig. Ia,b). This material is extremely fine grained |  | | Journal (article/letter/editorial) | | al., 1988; Scott, 1988; Weisberg et al., 1988), Adelaide (Davy et al., 1978; Kallemeyn and Wasson, 1982;... another unique carbonaceous chondrite. This meteorite is a single 113.7 g stone that was found in Antarctica...rinds. Limonite constitutes - 6 vol.% of the meteorite (Table I), but the interiors of surviving metal...1946; McSween, 1977a). Modal Abundances The meteorite (Fig. I) is a breccia; the one examined thin section...either olivine or polysynthetically-twinned clinoenstatite. They range in size from 10 to 160 ~m (average |  | | Journal (article/letter/editorial) | | three separate diagrams for three diļ¬erent size ranges. Compositions close to the endpoints Mg, Fe and...Two of them are shown in Fig. 9. The grain size ranges from some nanometers to 3.5 lm in diameter with...space group Pbca. They contain (1 0 0) planar clinoenstatite lamellae (space group P21/c). Schmitz and Brenker...the (1 0 0) planes (Fig. 11). The lamellae width ranges from 5 to 50 nm. The selected area diļ¬raction pattern...of olivine and pyroxene extend within the wide ranges Fo40ā100 and En50ā98, respectively. These Feā Mg |  | | Book | | 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 ļ¬elds. a l a n e . r u b i n is a meteorite researcher who recently retired from the University |  | | Book | | biogeochemistry in the worldās oceans. Sampling of NorthāSouth traverses of all of the worldās oceans at all depths...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 Karlās foray... CONTRIBUTORS GK Benedix Curtin University, Perth, Australia AN Krot University of Hawaiāi at Manoa, Honolulu...chemical histories both in the solar nebula and in meteorite parent bodies. It was in CAIs that the great discovery |  | | Book | | 20 22 25 26 26 28 28 29 29 29 30 32 33 34 34 34 ranges, leaving little doubt that the grains are ancient...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...and the recent determination of spallation recoil ranges (Ott and Begemann, 2000) cast doubt on a chronological...result of isotopic equilibration, either on the meteorite parent body or in the laboratory. Apparently, | | | Book | | 20 22 25 26 26 28 28 29 29 29 30 32 33 34 34 34 ranges, leaving little doubt that the grains are ancient...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...and the recent determination of spallation recoil ranges (Ott and Begemann, 2000) cast doubt on a chronological...result of isotopic equilibration, either on the meteorite parent body or in the laboratory. Apparently, |
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