 | BUCHANAN, P. C., LINDSTROM, D. J., MITTLEFEHLDT, D. W., KOEBERL, C., REMOLD, W. U. (2000) The South African polymict eucrite Macibini. Meteoritics & Planetary Science, 35 (6) 1321-1331 doi:10.1111/j.1945-5100.2000.tb01519.x | Journal (article/letter/editorial) | | Society, 2000. Printed in USA. The South African polymict eucrite Macibini P. C. BUCHANANl,**,D. J. LINDSTROMI...Witwatersrand, Private Bag 3, Wits 2050, Johannesburg, South Africa 3Mail Code C23, Lockheed Martin ESS, 2400 NASA...2000 August 7) Abstract-The polymict eucrite Macibini is a fragmental breccia, predominantly composed...mineralogical and bulk compositional data for the meteorite breccia and for six clasts. These clasts include...the fragments of impact-generated material in Macibini is clast 2, an earlier-formed clastic breccia |  | | Journal (article/letter/editorial) | | Department of Geochemistry University of Cape Town South Africa New data are used to confirm the positive correlation...and the identity of the MgjCr ratio in the two meteorite groups is established, provided Chaves is treated...treated as an anomalous howardite. Macibini, usually classedas a eucrite, has higher contents of Mg and...indicative of the genetic link between these three meteorite classes. The silicate fractions of nine mesosiderites...Kapoeta; M, MU, MB - Malvern (various samples); MA - Macibini; MT - Molteno; YL - Yamato (1) (Yagi et al., 1978); |  | Delaney, Jeremy S., Takeda, H., Prinz, M., Nehru, C.E., Harlow, G.E. (1983) THE NOMENCLATURE OF POLYMICT BASALTIC ACHONDRITES. Meteoritics, 18 (2) 103-111 doi:10.1111/j.1945-5100.1983.tb00581.x | Journal (article/letter/editorial) | | orthopyroxenite (diogenite) component in the meteorite. Howardites contain more than 10% and polymict...classification of Prior (1920) based on the presence of pigeonite in eucrites and 'hypersthene' in howardites. Mason...however, note that three meteorites (Bialystok, Macibini and Nobleborough) which would be mineralogicallyand...2Yamato-75032 is a pyroxene dominated rock that contains pigeonite as well as orthopyroxene and is, therefore, unlike...Mason et at. (1979) noted similarities between Macibini, Bialystok and Nobleborough, all of which are |  | | Journal (article/letter/editorial) | | Teilleul Wahl (1907) 12 100 031 (E) 6047, ENSM Macibini Haughton et Partridge (1938) 11 150 091 (E)...Mines, Paris (Dr P.Sainfeld). Geological Survey, South Africa (Dr O.R. Van Eeden). Museum National d'Histoire...Pellas). NMB, National Museum, Bloemfontein, South Africa (Dr J.J. Oberholzer). NMNH, National Museum...Fe0 40 50 60 0 10 20 30 40 50 60 I Macibini n. n Malvcrn n Bununu R Moltcno Zmenj ...correspondre aux groupes Fa 55 et Fa 67, les olivines de Macibini forment le groupe Fa 79 et sont avec deux grains |  | | Report (issue) | | parent rocks. Introduction As the importance of meteorite impacts as a mechanism producing lunar land forms...plagioclase (An 50-70) 33%-48%, clinopyroxene (augite ± pigeonite) 17%—34%, and opaques (ilmenite and/or magnetite)...the Lake Wilson-Mt. Davies region in northwest South Australia; (2) a group with high Ca/Al ratio centered...centered around Charlotte Waters on the South Australia—Northern Territory border and extending into southwest...low Si from Pindera in New South Wales (australites from elsewhere in New South Wales analyzed by other |  | | Journal (article/letter/editorial) | | Kapoeta parent body. Kapoeta is a ‘regolith’ meteorite, and mineral-chemical and petrographic data were...these observations to indicate that the Kapoeta meteorite represents the comminuted remains of differentiated...preclude the interpretation that the Kapoeta meteorite is a simple mixture of eucrites and diogenites...composition (NOONAN tion of the breccia from which this meteorite was deet al., 1974Fsome of which possess ‘zap...indicates III. SAMPLING PROCEDURE that the Kapoeta meteorite was not subjected to strong thermal metamorphism |  | | Journal (article/letter/editorial) | | University Corvallis, OR 97331 Paul P. Sipiera Meteorite Research Group William Rainey Harper College Palatine...Jones, discovered the Monticello meteorite on 29 May 1982. The meteorite was lying on the shoreline of Lake...Among reasonable explanations it is possible the meteorite fell into ~hallow water and the rapid quench caused...an initial examination of a thin section the meteorite is a pyroxene-plagioclase achondrite. We shall...addition, eucrites contain more pyroxenes of pigeonite compositions than those of orthopyroxene compositions |  | | Journal (article/letter/editorial) | | where R = crate ring rate, m = moon, and p = meteorite parent body. In terms of this relation, the above...cometary origin can be ruled out for all stony meteorite classes that have gas-rich members. This includes...crystal from the Murchison meteorite. A REINVESTIGATION OF THE LODRAN METEORITE Richard W. Bild, John T...California Los Angeles, CA 90024. The Lodran meteorite was described by Tschermak. He reported a friable...pentlandite were the common opaque minerals in this meteorite, magnetite was the principal opaque mineral found |  | | Journal (article/letter/editorial) | | In spite of its uniqueness, it has not been meteorite. studied in any detail, due to the scarcity of...rather uncommon in meteorites; the only other meteorite in which it has been reported is Cachari (BUNCHand...general case, the cosmogenic noble gases in a meteorite are the sum total of two stages of Studies of...through wholly molten the assumption that the meteorite came from the regions, our conclusions should...the meteorite samples, and to W&NKEfor permission to 250 cm: irradiation: first, in the meteorite parent |  | | Journal (article/letter/editorial) | | account taken of the data on the Moore County meteorite that had been considered insufficiently accurate...Moama can be explained by the fact that this meteorite “formed from source region distinctly different...The Pasamonte meteorite requires special consideration. The bulk probes of this meteorite were studied...also studied Sm-Nd and U-Pb systematics for this meteorite). The data of Birck and Allegre (1978) and Unruh...three groups mentioned, it also includes the Macibini meteorite which is a polymict breccia. It is now beyond |  | | Journal (article/letter/editorial) | | be generated by low pressure fractionation of pigeonite and plagioclase from liquids similar in composition...source regions composed of olivine (- Fo65). pigeonite (- Wo5En65), plagloclase (- AnY4), Cr-rich spmel...and low calcium pyroxene (primarily pigeonite or inverted pigeonite) (DIJK~ and SILVIIR. 1967). 587 the...distribution coefficients for olivineeliquid and pigeonite-liquid are higher than corresponding distribution...values of the Cr distribution coefficient for pigeonite-liquid reported by HUEBNER and LIPIN (1976) are |  | | Journal (article/letter/editorial) | | USA. Abstracts THE 145-Ma MOROKWENG IMPACT, SOUTH AFRICA: AN UNUSUAL, APPROXIMATELY 90-KILOMETER CRATER...Ainslie', 'AEC, P.O. Box 582, Pretoria 0001, South Africa (marco@aec.co.za), 2Schonland Research Centre...2050, South Africa, %old Fields Limited, Postnet Suite 252, Private Bag X30500, Houghton 2041, South Africa...Wits 2050, South Africa, SBilliton SA Limited, P.O. Box 61820, Marshalltown 2107, South Africa, 6Council...Geoscience, Private Bag X I 12, Pretoria 0001, South Africa, 'Department of Geology, Rand Afrikaans University |  | | Report (Issue volume) | | the planet which our ancestors called Culmen, a meteorite, known to scientists under the name of Croix d’Honneur...end of him. Woe to the mortal on whose head the meteorite falls!” (p. 141-142). Les Mystéres de l'Infini...SPETTEL, and 3479 Contents, Volume COMPARATIVE Meteorite 3 PLANETOLOGY Studies Trace element evidence...absorption spectra of a Ti*' fassaite from the Allende meteorite: A discussion. Amer. Mineral. 58, 955-961. Cohen...pyroxene (titanian fassaite) from the Allende meteorite (Mao and Bell, 1974) established that the Ti** |
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