 | 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) | | Geology, University of Capetown, Rondebosch, South Africa. Meteoritics, Vol. 10, No.4, December 30, 1975...which is itself limited by the small size of the ilmenite lamellae in the magnetite. The Ti0 2 content of...to 48 mole % ulvospinel. Recalculation of the ilmenite analyses yields 0 to 3 mole % hematite. The ulvospinel...The uncertain hematite content of the exsolved ilmenite, plotted on thef02-T diagram from Buddington and...METAMORPHIC ROCKS o I 2 3 4 5 WEIGHT % MnO IN "ILMENITE" Fig. 3 Distribution of MnO between coexisting |  | | 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); |  | | Report (issue) | | parent rocks. Introduction As the importance of meteorite impacts as a mechanism producing lunar land forms...clinopyroxene (augite ± pigeonite) 17%—34%, and opaques (ilmenite and/or magnetite) 2%-12%. Olivine may be present...clinopyroxene 45%-55%, and opaques 15%-2O% (including ilmenite, armalocolite, chromespinel, ulvospinel, rutile...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 |  | | Journal (article/letter/editorial) | | plagioclase (Ang5_&, z 2% of nickel-iron, troilite, ilmenite, titanian chromite. and 4% of a silica polymorph...In spite of its uniqueness, it has not been meteorite. studied in any detail, due to the scarcity of...Ibitira are Fe, Ti, Cr-rich ulviispinels and ilmenite. Ilmenite and titanian chromite are intergrown with...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 |  | | 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...amounts of troilite (Ni-free), chrornite, and ilmenite are present; a single grain of Fe-Ni metal was |  | | 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) | | 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) | | = spinel. Fe = iron metal, wu = wustite, il = ilmenite, tb = ferropseudobrookite. At metal-saturation...five phases is virtually coincident with the iron-ilmenite-ferropseudobrookite buffer at liquidus temperatures...ccommunication). Multiple analyses of a single meteorite were averaged before projecting into these diagrams...compositions of different subsamples of a single meteorite. Also, since the location of a composition in...some relatively large, euhedral spinels in this meteorite is consistent with the suggestion that spine1 |  | | 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...Ti** CT, energies for face-sharing transitions in ilmenite (Adams, 1975) and corundum (Smith and Strens, |
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