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edu/meteor A comparative study of opaque phases in Qingzhen (EH3) and MacAlpine Hills 88136 (EL3): Representatives...Sciences, P.O. Box 1131, Guangzhou 510640, P. R. China 2Max-Planck-Institut fur Chemie, D-55l28 Mainz,...2002 January 10) Abstract-Opaque minerals in the Qingzhen (EH3) and MacAlpine Hills (MAC) 88136 (EU) enstatite...spherules are commonly enclosed in most sulfides in Qingzhen, but are absent in MAC 88136. They were once molten...of troilite and djerfisherite. In addition, in Qingzhen, some other troilite, djerfisherite and sphalerite |
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assemblages in the unequilibrated EH chondrites Qingzhen, Yamato 69 1, and Indarch were studied to understand...pressure and temperature histories. Sphalerite in Qingzhen and in Yamato 69 1 are zoned with descending FeS...sphalerite cores in Qingzhen and Yamato 691 are similar (47.03-49.6 mol% FeS in Qingzhen versus 47.4-49.7...sphalerite rims to troilite are ~rn~ble (45.98 mol% in Qingzhen, 42.3 mol% in Yamato 691). Exsolution lamellae...troilite were found in several sphalerite grains in Qingzhen. The FeS content in these grains also decreases |
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temperatures for the last thermal event suffered by the meteorite, and the fast cooling rates indicated are most...inadequate sampling of these relatively rare meteorite groups. It now seems that EH chondrites display...geothermometry of enstatite chondrites (in wt%). ~ Meteorite* Classt Abee Adhi-Kot EH4y EH4y EH3u EL6P EH3u...88184 Parsa PCA 825 18 PCA 9 1020 Pillistfer Qingzhen RKPA80259 St. Marks Saint-Sauveur TIL 91714 ...Ehlers (1989) determined values of 366-728 "C for Qingzhen and 3 7 7 4 5 9 "C for Yamato 691, and they interpreted |
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in USA Book Reviews Introduction to Chinese Meteorite Study by Daode Wang et al. Science Press, 1993...meteorites as a career. It covers many aspects of meteorite study. It also contains much of the authors' decades...recorded meteorite fall in China dates from about 2100 B.C. The current meteorite collection in China includes...chondrites), 31 iron and one stony-iron meteorite. This book summarizes the significance of meteorite studies...describes the classification of 14 iron meteorites and one stony-iron meteorite. These chapters provide an important |
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(aubrites) and extremely rarely in sulfide nodules in iron meteorites (El Goresy et al. 1971; Kracher et al...unit]. Analyses (n = 77) of djerfisherites from Qingzhen (EH3; Lin, El Goresy, pers. comm.) have sums of...have edges altered to secondary troilite in a ‘‘Qingzhen reaction’’ texture (El Goresy et al. 1988) 1... 926 Contrib Mineral Petrol (2013) 166:923–934 Qingzhen having values of X2 = 0.0264, X3 = 0.0527, and...3) 123 exemplified by those found in the Qingzhen meteorite, where they exhibit pronounce negative deviations |
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chondrites were analyzed in this study. All but Qingzhen are from Antarctica; basic information is summarized...Meteorites Classification Weathering %Fa %Fs Qingzhen* ALH84170 PCA91238 EET87746 LEW88180 MAC88136...most stable NRM in the enstatite chondrites. All meteorite samples, together with reference materials, and...enstatite ehondrites metal grains. Studies of the Qingzhen and Yamato-691 meteorites showed a common enclosure...enstatite chondrites. Proportion (in %) Meteorite Co~ Ni¢ Ni-Co* Qingzhen (EH3) ALH84170 (EH3) PCA91238 (EH3) |
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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...movement of the ice with some ice dropping into the meteorite concentration zone of the Main Icefield. The majority...of 820 ± 80°C for the eucrite-related LEW86010 meteorite. Estimates of metamorphic temperatures of equilibrated |
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siderophile affinity, and may be concentrated in iron meteorites in accessory chromite [22) but is virtually...Lithophile element, and has the Largest cation of the iron group of elements; it has a crystal-chemical position...chondrites; 2200 [2, p. 44] for achendrite (Norton County); and 1850 or 1760 [2, p. 32] for the earth's crust...quantities in stony meteorites and as traces in iron meteorites [15]. Thus the mean Mn contents are given...05% for iron meteorites [15]. For the range and mean of Mn content in individual stone meteorite classes |
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Physiographic Map .727 Alaskan Subdivisions .728 China .729 Atlantic Ocean .730 Pacific Ocean.731 Acknowledgements...the total of 4,284 new Terms were United States county and city Terms. Counties and Cities in the United...States Earlier editions had Terms such as Washington County and Portland for counties and cities of the United...for example: Washington County Arkansas and Portland Maine. Each new county Term can now autopost its...to counties was a major task. The scope of U.S. county and city Terms can now be clear even when they |