 | Ruzicka, Alex, Kring, David A., Hill, Dolores H., Boynton, William V., Clayton, Robert N., Mayeda, Toshiko K. (1995) Silica-rich orthopyroxenite in the Bovedy chondrite. Meteoritics, 30 (1) 57-70 doi:10.1111/j.1945-5100.1995.tb01212.x | Journal (article/letter/editorial) | | Printed in USA Silica-rich orthopyroxenite in the Bovedy chondrite ALEX RUZICKA!, DAVIDA. KRING!, DOLORESH...(>4.5 x 7 x 4 mm), igneous-textured clast in the Bovedy (L3) chondrite is notable for its high bulk Si02...intergrowth offeldspar (5.8 %) and sodic glass (3.1 %), pigeonite (1.0 %), and small amounts of chromite (0.2 %)...of the clast is similar, but not identical, to Bovedy and other ordinary chondrites. The clast has a...ordinary chondrites, and silicates in the lIE iron meteorite Weekeroo Station. The clast crystallized from |  | | Journal (article/letter/editorial) | | 5BD, UK c Department of Earth Scwnces, Unwerstty of Cambrtdge, Downmg Street, Cambridge CB2 3EQ, UK Received...W o 4 2 E n 4 5 F s 1 3 ) , and rare cores of pigeonite (Wo10En65Fs25), are zoned to rims of pyroxferroite...Al203 Cr20 3 FeO MnO MgO CaO Na20 Total Wo En Fs Pigeonite 53.5 0.35 1.60 0.75 14.2 1.01 22.6 6.17 100.18...rims enriched over cores. Among the pyroxenes, pigeonite has the lowest REE abundance, with La--, 0.7 x...have REE contents intermediate between those of pigeonite Parnallee Microgabbro Plagioclase 100 I I |  | | Journal (article/letter/editorial) | | 2 mm across and atypically large for the host meteorite to be a large melt object or inclusion. This specifically...work focussed on large melt objects in a single meteorite, the Julesberg (L3.6) chondrite (Graham, 1993;...overgrown by low-Ca pyroxene (orthopyroxene or pigeonite) which comprises a large portion of the object... Small (,200 mmdiameter) glass-rich areas within Co-1 and Gu-1 (Fig. 3a,b) appear to be typical melt-pockets...meteorites. Regions that were locally shock-melted in Co-1 are macroscopically dark and stand out against |  | Nakamura, Noboru, Misawa, Keiji, Kitamura, Masao, Masuda, Akimasa, Watanabe, Seiko, Yamamoto, Koshi (1990) Highly fractionated REE in the Hedjaz (L) chondrite: implications for nebular and planetary processes. Earth and Planetary Science Letters, 99 (3) 290-302 doi:10.1016/0012-821x(90)90117-g | Journal (article/letter/editorial) | | with the light-REE enriched, indicating that the meteorite contains components with highly fractionated REE...body and was then incorporated into the Hedjaz meteorite parent body. The presence of impact-related products...H O N D R I T E whole-rock samples from the meteorite. Here, we present the results for chemical analyses...with less abundant lithic fragments. Since the meteorite is quite hard, much cautious work was required...MSID technique [2,19,20], Hedjaz is the only meteorite which shows such a REE fractionation. The same |  | | Journal (article/letter/editorial) | | GREAT CENTENARY BRITAIN AND OF MINERALOGICAL IRELAND, I976 JOSEPH V. SMITH Department of the Geophysical...THE Mineralogical Society of Great Britain and Ireland has a distinguished record in promoting research...' In spite of numerous historical records of meteorite falls, a century of scientific scepticism about...in meteorites. White inclusions of the Allende meteorite carry the melilite, spinel, diopside, and perovskite...with 27A1/24Mg in anorthite from the Allende meteorite (Lee et al., I977a , b); Hutcheon et al., I977; |  | | Book | | discuss recent evidence from the “84001 Martian meteorite,” which has raised provocative new questions...Wainwright at Gerzeh in Egypt. tions observed meteorite falls, collected the debris and wrote accounts...accounts of the events. The oldest known record of a meteorite fall comes from around 4000 years ago in Phrygia...Roman historian Titius Livius, the celebrated meteorite at Phrygia was later transported in royal procession...earliest names for meteoritic iron. The word meteorite comes from the ancient Greek meteoros, meaning |  | | Book | | British Museum (Natural History), London SW7 5BD, UK Department of Geology, Kansas State University, Manhattan...Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, UK Department of Earth and Planetary Sciences, Massachusetts...University, Walton Hall, Milton Keynes, MK7 6 A A, UK Department of Mineralogy, British Museum (Natural...radius with increase in atomic number for a given co-ordination number. Despite the similarity in their...The wide variety of types and sizes of the cation co-ordination polyhedra in rock-forming minerals provides |
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