 | | Journal (article/letter/editorial) | | pigeonite, 3.53; silica, 2.32; chromite, 5.09; ilmenite, 4.78; merrillite, 3.12; troilite, 4.60; and metallic...and accessory to minor troilite, metallic Fe-Ni, ilmenite, merrillite, and chromite (Table 2). Limonite...Binda, 2.0; Moama, 6.3 (MITTLEFEHLDT, 1979a); Medanitos, 5.7 (KIESL et al., 1978); Moore County, 1.7;and...cumulates (39%) are coarsegrained (~~800 Fm), ilmenite-free, gabbroic rocks with mg* generally between...(long-dashed line). Labeled points are: EEET87548; Me-Medanitos; Mo-Moama; 6-pebble 6; I g-pebble 18; and S-hypothetical |  | | Journal (article/letter/editorial) | | Mittlefehldt I lhh Table 1. Summary of meteorite Mesasiderites Clover Sprinysl Crab Orchard Crab...euhedral plagioclase, augite, pigeonite, chromite, ilmenite, troilite, and phosphate grains. These are similar...produce this correlation. Although both chromite and ilmenite have a much higher Fe/Mg ratio than their parent...pyroxenes associated with fine-grained tridymite, ilmenite. chromite, troilite, phosphate, and metal in basalts...non-mesostasis grains. Crystallization of chromite and ilmenite (arrow) in the mesostasis will suppress the increase |  | | Journal (article/letter/editorial) | | host phases for Hf and Ta—zircon, baddeleyite, ilmenite, and titanite—are much less susceptible to terrestrial...the samples studied. Trace element anomaliesb Meteorite Split Sample type Nonantarctic Chervony Kut...the samples studied. Trace element anomaliesb Meteorite Split Sample type Antarctic eucritic clast...classification is that used in the JSC online meteorite catalog. b Ce/Ce* are flagged as being either...manually checked and corrected if necessary. In meteorite analysis, sample representativeness is an issue |  | | Journal (article/letter/editorial) | | 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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