 | 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); |  | | 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) | | analyses of virtually all the known pyroxene-plagioclase achondrite meteorites and a discussion of the...A. Nelen . . . by Brian Mason T H E PYROXENE-PLAGIOCLASE ACHONDRITES, by Brian Mason, Eugene Jarosewich...parent rocks. Introduction As the importance of meteorite impacts as a mechanism producing lunar land forms...varieties: (1) "hard" trap which has euhedral plagioclase phenocrysts with strong oscillatory zoning, often...trap. Major minerals in both textural types are plagioclase (An 50-70) 33%-48%, clinopyroxene (augite ± pigeonite) |  | | Journal (article/letter/editorial) | | Kapoeta parent body. Kapoeta is a ‘regolith’ meteorite, and mineral-chemical and petrographic data were...of modal mineralogy-basaltic (pyroxene- and plagioclase-bearing) and pyroxenitic (pyroxenebearing). Variations...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...were not observed in Kapoeta, suggesting that plagioclase was not important in the evolution of the Kapoeta |  | | Journal (article/letter/editorial) | | consists of -63 vol. % pyroxene (Wo,,En,8FsQ8)r 31% plagioclase (Ang5_&, z 2% of nickel-iron, troilite, ilmenite...In spite of its uniqueness, it has not been meteorite. studied in any detail, due to the scarcity of...in a separate ‘shergottite’ subclass. Their plagioclase is more sodic, Ab,, vs Ab,_,, and is shockvitrified...pyroxenes (TAKEDAet al., 1974). Feldspar. The plagioclase feldspar appears to be unzoned. The mean composition...rather uncommon in meteorites; the only other meteorite in which it has been reported is Cachari (BUNCHand |  | | 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...examination of a thin section the meteorite is a pyroxene-plagioclase achondrite. We shall review criteria...of fragments of single minerals, pyroxene and plagioclase, mostly in the range 20 to 450 ILm, with several |  | | Journal (article/letter/editorial) | | unaminclusions occurring together in the same meteorite biguous textural evidence of having been totally...not been sigdrites (principally the Allende C3 meteorite), surprisnificantly altered by thermal metamorphism...Tennessee, Knoxville, TN 37916, U.S.A. analyzed. This meteorite consists of dark carbonaINTRODUCTION 1843 1844...within a porphyritic olivine chondrule in the Isna meteorite. (f) Olivine chondrule in Kakangari rimmed by...discernable evidence of melting or assimilation. The meteorite Kakangari contains olivine chondrules rimmed by |  | | 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...and some small rounded bodies that might be plagioclase. zahringer found Lodran to be rich in planetary-type |  | | Journal (article/letter/editorial) | | account taken of the data on the Moore County meteorite that had been considered insufficiently accurate...Papanastassiou and Wasserburg suggested that plagioclase from Moore County be used as reference material...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 |  | | 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 |  | | Journal (article/letter/editorial) | | low pressure fractionation of pigeonite and plagioclase from liquids similar in composition to the Sioux...in these source regions, after exhaustion of plagioclase, may have produced magnesian liquids from which...breccias and which consist principally of calcic plagioclase and low calcium pyroxene (primarily pigeonite...Abbreviations: gl = glass. cpx = clinopyroxene. plag = plagioclase. sp = spinel. ol= olivine. Phase chemistry data:...lOO*Mg/(Ca f Mg + Fe + Mn) [molar]; An(x) signifies a plagioclase with x = lOO&a/(Ca + Na) [molar]; A, C, T, and |  | | Report (volume) | | of High Plains Underground Water Conservation District No. 1. Lubbock, Tex. Cushman Found. Foram. Research...America Proceedings. Solid State Communications. South Carolina Acad. Sci. Bull. Columbia, S.C. Pergamon...Bulletin of the South Carolina Academy of Science. South Carolina Div. Geology Bull.- South Carolina Division...of Geology Bulletin. South Carolina State Development Board. Columbia, S.C. South Carolina Div. Geology...Geology Geol. Notes- South Carolina Division of Geology Geologic Notes. South Carolina State Development Board |  | | 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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