 | Valencia, S. N., Jolliff, B. L., Korotev, R. L. (2019) Petrography, relationships, and petrogenesis of the gabbroic lithologies in Northwest Africa 773 clan members Northwest Africa 773, 2727, 3160, 3170, 7007, and 10656. Meteoritics & Planetary Science, 54 (9) 2083-2115 doi:10.1111/maps.13370 | Journal (article/letter/editorial) |
| Abstract–The Northwest Africa (NWA) 773 clan of lunar meteorite stones are coarsegrained breccias that provide...term used for terrestrial rocks with over 65% feldspar (typically plagioclase). KREEP Connection KREEP...enriched in incompatible elements including potassium (K); the rare earth elements (REE); and phosphorus (P);...REE patterns are similar to the REE pattern of high-K KREEP (Warren and Wasson 1979) with a LREE enrichment...contains only 12% and 8% of the concentration of high-K KREEP for the breccia and OG, respectively (Korotev |
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| the surface, so rapidly that portions of the meteorite and the ground which were in contact were vaporized...people wondered about what would happen if a large meteorite fell to the ground, but they were limited by the...meteorites and the corollary that the size of the meteorite was quite small relative to the crater it could...an equal mass of TNT. The kinetic energy of a meteorite changes with the square of the velocity and hence...far more probable that the angle of impact of a meteorite with earth or moon is low rather than high. Previously |
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| structures .694 ListJ Metamorphic rocks.696 List K Sedimentary structures .697 List L Minerals .699 ListM...in the back of the Thesaurus: List C D E F FI I j K L M N O Commodities Elements Geologic ages Fossils...Italy NT Chieti NT Marsica AJjsaroka Fault Abee Meteorite aa Taylor County Texas Texas Southwestern U...method [e.g. Ar/Ar, C14, He/He, l/Xe, lo/Th, lo/U, K/Ar, Kr/Kr, Nd/Nd, Pb-alpha, Pb/Pb, Pb/Th, Pb-210,...He-4/He-3 He/He l/Xe lo/Th lo/U isochrons isotopes K/Ar Kr/Kr new methods orogeny overprinting Pb-210 Pb/Pb |
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| CARBONACEOUS-CHONDRITE INCLUSIONS FROM THE KAPOETA METEORITE: EVIDENCE FOR THE EXISTENCE OF NANODIAMONDS WITH...Waterloo, ON, Canada. Kapoeta is an achondrite meteorite that belongs to the howardite group, which along...nanodiamonds in CC material from the Kapoeta meteorite by Fourier-transform infrared (FTIR) and Raman...nanodiamonds and amorphous carbon found in this meteorite. References: [1] Zolensky M. E. et al. 1996. Meteoritics...Tsuchiyama A. et al. (2011) Science 333: 1125. [8] Nagao K. et al. (2011) Science 333: 1128. [9] Nakamura E. |
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| l6-m.y.-old structure formed by the impact of a meteorite with the Earth. The long history of geological...TiO, (0.5 I), FeO (2.64). MgO (0.61). CaO (0.45), K,O (2.44). and Na,O (0.94):For trace elements, three...pattern (64zCa/40Ca 580 f 382%0,643Ca/~Ca = 1799 k 382%0,S44Ca/40Ca 894 f 109%0)of this grain also agrees...agrees with that expected for the O/Ne and O K zones. Between the two Ca isotopic measurements made on... R. (1992) LPS XXIII, 373-374. [3] Jessberger E. K. et al. (1992)EPSL, 112.91-99. [4] Rietmeijer F. J |
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| important contribution to the recovery of new meteorite falls and the determination of the orbital parameters...PRESOLAR GRAPHITE FRACTION KFAI FROM THE MURCHISON METEORITE. S. Amari l, A. Nguyen1, E. Zinner l, and R. S...ellipses are 20" Fig. 1 MINERALOGY OF A NEW LUNAR METEORITE YAMATO 981031. T Arail, T Ishii- and M. Otsuki-...Yamato (Y) 981031 is a newly found Antarctic lunar meteorite of mare origin. Yamato (Y) 793169 and Asuka (A)...[1] which should produce temperatures in the meteorite exceeding 600°C [2]. Results of siderite heating |
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| OF THE METALLIC PHASES IN THE ALMAHATA SITTA METEORITE (FRAGMENT#051). Y. A. Abdu1, A. M. Gismelseed2...Khartoum, Sudan. Introduction: The Almahata Sitta meteorite fall was unique because asteroid 2008 TC3, the...the sublimation temperature of water-ice (~150-170 K). Heating of regions where ambient temperatures were...established. References: [1] Yurimoto H. & Kuramoto K. 2004. Science 305:1763. [2] Lyons J.R. & Young E...M.O'D. et al. 2012. Science 337:721. [6] Altwegg K. et al. 2015. Science 347:1261952. [7] Keller L.P |
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| proposed by Alvarez et al. [2], based largely on the K/T layer Ir budget and the Ir contents of stony meteorites...vaporized projectile escapes the Earth. Therefore, the K/T impactor had a mass of lo1$kg or an impact energy...enhancement of the 87Sr/86Srratio in the oceans at K/T time. The observed sharp decrease followed by an...timescalesof 101-105 yr. References: [ l ] Holsapple K. A. (1993) Annu. Rev. Earth Planet. Sci., 21, 333-373...magnetite and pyrrhotite grains in the martian meteorite are of magnetotactic bacterial origin. A6 Meteoritics |
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| MÖSSBAUER SPECTROSCOPY OF OLIVINES FROM THE D’ORBIGNY METEORITE Y. A. Abdu1, M. E. Varela2 and F. C. Hawthorne1...(d13C approximately 0 to +5&) lining vugs in the meteorite. There are also differences in magmatic carbon...et Cosmochimica Acta 74:1146–1171. [2] Weisberg M. K. and Huber H. 2001. Meteoritics & Planetary Science...Zolensky M. E. and Gooding J. L. 1986. [7] Weisberg M. K. et al. 1993. Geochimica et Cosmochimica Acta 57:1567–1586...of the Meteoritical Society: Abstracts 5022 METEORITE IMPACT CRATERS IN SOUTH AMERICA: A BRIEF REVIEW |
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| sharp, but irregular interfaces with the host meteorite and have characteristics which suggest that formed...by isotopic fractionation. However, studies of 0 , K, Mg, Si and Fe have found little or no significant...constant the peak temperature (1 900 K), the cooling rate (1 00 K/hr) and the dust (1 0 pn)/chondrule...melts and much of it will have crystallized by 1700 K (after 120 minutes). If the olivine that grows over...Otherwise, olivine and pyroxene that grows above 1700 K will preserve A9 0 Meteoritical Society, 2001. Printed |
