 | Bischoff, A., Palme, H., Ash, R.D., Clayton, R.N., Schultz, L., Herpers, U., Stöffler, D., Grady, M.M., Pillinger, C.T., Spettel, B., Weber, H., Grund, T., Endreβ, M., Weber, D. (1993) Paired Renazzo-type (CR) carbonaceous chondrites from the Sahara. Geochimica et Cosmochimica Acta, 57 (7) 1587-1603 doi:10.1016/0016-7037(93)90014-n | Journal (article/letter/editorial) | | Pergamon Press Ltd. Printed in U.S.A. Paired Renazzo-type (CR) carbonaceous chondrites from the Sahara...mineralogical similarities to the carbonaceous chondrite Renazzo were recovered at two locations of the Sahara:...26A1contents. The Acfer-El Djouf meteorite is classified as a CR (Renazzo-type) carbonaceous chondrite....comprises three non-Antarctic members (Al Rais, Renazzo, Acfer-El Djouf) and five Antarctic meteorites...lithological components of the Acfer-El Djouf meteorite are large chondrules (up to 1 cm in size; mean |  | | Journal (article/letter/editorial) | | Pergamon Press Ltd. Printed in U.S.A. The CR (Renazzo-type) carbonaceous chondrite group and its implications...isotopic study of eight meteorites, identified as CR (Renazzo-type) chondrites, reveals that they have a set...water to a greater degree than the rest of the meteorite. The overall degree of hydration in CR chondrites...fiamboidal magnetite in Renazzo matrix as being CI-like. It was later shown that Renazzo has a nitrogen isotopic...and CLAYTON, 1978; ROBERT and EPSTEIN, 1982). Renazzo was also found to have an oxygen isotopic composition |  | | Journal (article/letter/editorial) | | kinds of carbonaceouschondrites: (1) carbonaceous Renazzo-like (CR) group, (2) carbonaceous high-metal (CH)...Bencubbin-like group let CH-like group let Ungrouped Renazzo Al Rais El DjoufOOI * Kaidunt Temple Bar EET 87770~...~Paired with 40 other EET meteorites (Antarctic Meteorite Newsletter, 1989, 1994). §Paired with Acfer 207...uncertain. $Paired with QUE 94627 (Antarctic Meteorite Newsletter, 1996). classification than "group"...Bischoff, 1997; Marhas et al., 200 I), although Renazzo and Al Rais CAls contain secondary calcite and |  | | Journal (article/letter/editorial) | | (Dhofar 007) and noncumulated (NWA 011). Results: A meteorite shower, 37 pieces weighing a total of 21,270 g...REE pattern supports a cumulate type of this meteorite also. At the other side the data of NWA 011 are...REE pattern supports a noncumulate type of this meteorite. Thus, these two meteorites belong to different...local materials and not from a widespread mix of meteorite types. From these observations we infer that the...metal grain volumetric difference between the two meteorite classes. Because of the problem of pairing meteorites |  | | Journal (article/letter/editorial) | | sharp, but irregular interfaces with the host meteorite and have characteristics which suggest that formed...from hot deserts. The 26AI concentration in a meteorite depends upon different parameter like the exposure...analyzed sample and the terrestrial age of the meteorite. Our data contributes to the understanding of...production rate characteristic for the corresponding meteorite class. We do not find extremely low 26AI concentrations...order to reconstruct the irradiation history of a meteorite in detail, it is essential to analyze other cosmogenic |  | | Journal (article/letter/editorial) | | grid for electron microscopy. Large areas of meteorite matrix were scanned and checked for the occurrence...material into which they were mixed prior to meteorite compaction This is to be expected if the diamonds...TOWARD A BETTER UNDERSTANDING OF THE ASTEROID-METEORITE CONNECTION. J. F. Bell 1111, S. Murchiez, N. Izenbergz...sufficient accuracy to enable comparisons with major meteorite types. To achieve the latter goal, NEAR is equipped...address fundamental questions in asteroid and meteorite science. This presentation focuses primarily on |  | | Book | | Water-Rich Small Bodies 390 6.5 Primitive Asteroid-Meteorite Matches 394 6.6 Implications for Exploration of...same rate as older craters erode away (due to meteorite and micrometeorite bombardment), at least for...found that the best match for 433 Eros is an OC meteorite that has been altered at the surface of the asteroid...do not go longward of 0.9 mm, and a suggested meteorite analog cannot be identified beyond those generally...existence of polymict breccias in the Earthly meteorite collections. Some regions in the southern hemisphere |  | | Journal (article/letter/editorial) | | YEARS OF TERRESTRIAL RESIDENCE IN THE TATAHOUINE METEORITE. J. A. Barrat', Ph. Gilletz, Th. Heulin3, M. Lesourd4...analysis of the carbonates within the Tatahouine meteorite and the underlying ground confirm their terrestrial...were observed on the external surfaces of the meteorite fragments collected in 1994 and on gravels, gun...bacteria clusters from the soil in which the meteorite samples were embedded. This study emphasizes the...Houston TX 77058, USA. Introduction: Martian meteorite ALH 84001 (ALH) is a brecciated cumulate orthopyroxenite |  | | Book (edition) | | Historical Review J. Dorschner Abstract Via meteorite research, mineralogy became the first discipline...turnaround occurred, when the well-witnessed meteorite rain of L’Aigle in 1803 convinced the authorities...popularity among astrophysicists. Further, primitive meteorite and interplanetary dust mineralogy began to play...metals [41, 42]. 2.3 Renunciation from Meteor/Meteorite Analogy As already mentioned, the iron dust model...interstellar grains embedded 4.6 × 109 years ago in the meteorite parent bodies of the forming solar system. Being |
|
