 | | Journal (article/letter/editorial) | | Printedin U.S.A. + .oO The microstructure of Semarkona and Bishunpur C. M. O’D. ALEXANDER,“* D. J. BARBER...24, 1989) Abstract-The ordinary chondrites, Semarkona and Bishunpur, appear to have experienced in situ...examination of them, which supports this conclusion. In Semarkona, all but the most magnesian mafic minerals have...composition of the gas present during the alteration of Semarkona was not solar but was dominated by H20. The formation...grain-boundary fluid present. The alteration in Semarkona and Bishunpur is far from complete. Thermodynamic |  | | Journal (article/letter/editorial) | | carbides (Krot et al., 1997). Evidence from LL3.0 Semarkona that water moved through the matrix into chondrules...high-17O composition of magnetite grains in LL3.00 Semarkona, L3.05 EET 90161, LL3.6 Ngawi and other type-3...temperatures ranging from 200 - 260ºC for type-3.00 Semarkona (Alexander et al., 1989; Huss and Lewis, 1994)...those of the most unequilibrated OC (e.g., LL3.00 Semarkona, LL3.15 Bishunpur, LL3.2 Krymka; Takagi, 2005;...PCA 91002 contains 0.3 vol.% magnetite, this meteorite is paired with PCA 91241 and all the magnetite |  | | Journal (article/letter/editorial) | | occurrences of Ca-rich armalcolite and geikielite in a meteorite, and the second occurrence of phase T (an unidentified...2007). To gain a deeper insight into this unique meteorite and a better understanding of the variety of materials...described by Jiang et al. (2004). Samples of Allende meteorite were treated and analyzed in the same way for...100 µm. OAs in Ningqiang are mainly composed of awaruite, magnetite, pyrrhotite and pentlandite with minor...olivine (Fa0.2–53.8), enstatite, pigeonite, spinel, awaruite, pyrrhotite and pentlandite, which range in size |  | Krot, Alexander N., Zolensky, Michael E., Wasson, John T., Scott, Edward R.D., Keil, Klaus, Ohsumi, Kazumasa (1997) Carbide-magnetite assemblages in type-3 ordinary chondrites. Geochimica et Cosmochimica Acta, 61 (1) 219-237 doi:10.1016/s0016-7037(96)00336-5 | Journal (article/letter/editorial) | | USA 3Earth Science and Solar System Exploration Division, NASA, Johnson Space Center, Houston, Texas 77058...pentlandite was originally described in LL3.0 Semarkona, LL3.7 ALHA77278, and LL3.2/3.7 Ngawi (Taylor...Hutchison et al. (1987) described carbide veins in Semarkona matrix and a carbide that might be intermediate...cohenite and e-carbide (Fe2C). They concluded that Semarkona experienced multistage nebular and parent body...Cr, and troilite from the Canyon Diablo iron meteorite for S; C was not analyzed. For silicates and magnetite |  | | Journal (article/letter/editorial) | | 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...Mineralogy of meteorite groups TABLE 2. Minerals in meteorites. ~~ ~ Mineral awaruite chaoite copper |  | | 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 fields. a l a n e . r u b i n is a meteorite researcher who recently retired from the University |  | | Journal (article/letter/editorial) | | 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...and metals aluminium antitaenite (not approved) awaruite chaoite copper cupalite decagonite diamond cohenite...aragonite armalcolite arupite aspidolite augite awaruite baddeleyite barite barringerite barringtonite |  | | Book (edition) | | 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 |  | Muxworthy, Adrian R., Bland, Phillip A., Davison, Thomas M., Moore, James, Collins, Gareth S., Ciesla, Fred J. (2017) Evidence for an impact-induced magnetic fabric in Allende, and exogenous alternatives to the core dynamo theory for Allende magnetization. Meteoritics & Planetary Science, 52 (10) 2132-2146 doi:10.1111/maps.12918 | Journal (article/letter/editorial) | | study of the matrix of Allende CV3 chondritic meteorite, isolating the matrix’s primary remanent magnetization...that give chondrites their name. The Allende meteorite is a member of the CV group of carbonaceous chondrites...early solar system processes, contained in this meteorite and others, remain poorly understood and a matter...in interpreting the paleomagnetic record in a meteorite. Shock metamorphism has not been considered a...70–80%). In addition to the fabric analysis of meteorite matrix, studies of experimentally synthesized |  | Gattacceca, J., Suavet, C., Rochette, P., Weiss, B. P., Winklhofer, M., Uehara, M., Friedrich, Jon M. (2014) Metal phases in ordinary chondrites: Magnetic hysteresis properties and implications for thermal history. Meteoritics & Planetary Science, 49 (4) 652-676 doi:10.1111/maps.12268 | Journal (article/letter/editorial) | | individual meteorites while homogeneous among meteorite subsamples. Except for the most primitive chondrites...2003, 2008, 2009), allowing scanning of large meteorite collections for preliminary classification (Folco...significant data set of hysteresis properties for meteorite falls is the report by Terho et al. (1992) that...paleomagnetism. SAMPLES AND METHODS Samples due Only meteorite falls were studied to avoid biases to terrestrial...minimum value) of 1.28 0.08 for MRS. In such a meteorite, measurement of MRS along a single direction may |  | | Journal (article/letter/editorial) | | 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 |  | | Journal (article/letter/editorial) | | 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 |  | | Journal (article/letter/editorial) | | 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 |  | | Book | | 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 |  | | Book | | Water-Rich Small Bodies 390 6.5 Primitive Asteroid-Meteorite Matches 394 6.6 Implications for Exploration of...same rate as older craters erode away (due to meteorite and micrometeorite bombardment), at least for...found that the best match for 433 Eros is an OC meteorite that has been altered at the surface of the asteroid...do not go longward of 0.9 mm, and a suggested meteorite analog cannot be identified beyond those generally...existence of polymict breccias in the Earthly meteorite collections. Some regions in the southern hemisphere |  | | Book | | 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,...circumstellar silicon carbide grains from the Murchison meteorite. Meteoritics 30, 679–693. Amari S., Lewis R. S...interstellar graphite grains from the Murchison meteorite indicate a massive star origin. Astrophys. J. | | | Book | | 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,...circumstellar silicon carbide grains from the Murchison meteorite. Meteoritics 30, 679 –693. Amari S., Lewis R....interstellar graphite grains from the Murchison meteorite indicate a massive star origin. Astrophys. J. |
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