 | | Report (issue) | | 3.405 (54), 1.453 (32) Chemistry: (1) Suizhou meteorite; calculated from structure; corresponds to (Mg...Ringwoodite, wadsleyite. Distribution From the Suizhou meteorite, fell at Xihe, Zengdu District, Suizhou, Hubei...(holotype), the Tenham meteorite, fell at Tenham Station, Windorah, Barcoo Shire, Queensland, Australia (cotype)...(cotype), and the Miami meteorite, Texas, USA. Name: Honors Jean-Paul Poirier, for contributions to mineral...Nature and Science, Tokyo, Japan (NSM-MF15125 cotype Tenham). References: (1) Tomioka, N., L. Bindi, T. Okuchi |  | | Journal (article/letter/editorial) | | HAMMOND DOWNS, A NEW CHONDRITE FROM THE TENHAM AREA, QUEENSLAND, AUSTRALIA Brian Mason Smithsonian Institution...meteorites from the area of the Tenham shower (Queensland, Australia) was a 27 kg stone which proved...proved to be different from the other Tenham stones. It is a bronzite, H4, chondrite, the principal minerals...6 ,4), nickel-iron, and troilite; it is considerably weathered, much of the nickel-iron being converted...visible plagioclase. This meteorite was found about 1950 near the Hammond Downs station, hence the name; its |  | | Journal (article/letter/editorial) | | USA Ingella Station, a New Chondrite Find from the Tenham Strewnfield, Queensland, Australia T. J. McCoy...Ingella Station, a new meteorite find from the area of the Tenham strewn field, Queensland, Australia, is...6391; UNM 941) were studied to classify Ingella Station into compositional group and petrologic type, using...recovered from the area of the Tenham meteorite strewnfield, Queensland, Australia, 25°33' S, 142°47'E, in May...Collection. The Tenham strewnfield covers an area of 19 by 5 km. It has yielded approximately 200 Tenham stones |  | | Journal (article/letter/editorial) | | 0016-7037(95)00086-O Thermal and shock metamorphism of the Tenham chondrite: A TEM examination FALKO LANCENHORST...early episode of the solar system, the L6 chondrite Tenham has been affected by intense thermal metamorphism...phases majorite and ringwoodite, the L6 chondrite Tenham is an instructive example for strong shock metamorphism...signature of the silicates occurring in the bulk of Tenham. Plagioclase is either pervaded by thin (200 nm)...this study substantiate that the shock pressure in Tenham is heterogeneously distributed, ranging from approximately |  | Ma, Chi, Tschauner, Oliver, Bindi, Luca, Beckett, John R., Xie, Xiande (2019) A vacancy‐rich, partially inverted spinelloid silicate, (Mg,Fe,Si)
2
(Si,□)O
4
, as a major matrix phase in shock melt veins of the Tenham and Suizhou L6 chondrites. Meteoritics & Planetary Science, 54 (9) 1907-1918 doi:10.1111/maps.13349 | Journal (article/letter/editorial) | | a major matrix phase in shock melt veins of the Tenham and Suizhou L6 chondrites Chi MA 1* , Oliver... was discovered within shock melt veins in the Tenham and Suizhou meteorites, two highly shocked L6 ordinary...remainder composed of a vitrified (Mg,Fe)SiO3 phase (in Tenham) or (Mg,Fe)SiO3-rich clinopyroxene (in Suizhou);...inferred conditions during shock melt cooling of the Tenham and Suizhou meteorites, revealing in particular...in natural shock-generated mineral assemblages. Iron-bearing akimotoite (Sharp et al. 1997; Tomioka and |  | Ferroir, Tristan, Beck, Pierre, Van de Moortèle, Bertrand, Bohn, Marcel, Reynard, Bruno, Simionovici, Alexandre, El Goresy, Ahmed, Gillet, Philippe (2008) Akimotoite in the Tenham meteorite: Crystal chemistry and high-pressure transformation mechanisms. Earth and Planetary Science Letters, 275 (1) 26-31 doi:10.1016/j.epsl.2008.07.048 | Journal (article/letter/editorial) | | / l o c a t e / e p s l Akimotoite in the Tenham meteorite: Crystal chemistry and high-pressure transformation...20 September 2008 Editor: L. Stixrude Keywords: tenham chondrite shock melt vein akimotoite perovskite...documented in the shock-induced melt veins of the L6 Tenham chondrite. Four textural relationships between...al., 2004). The Tenham chondrite fell in 1879 in South Georgy, Queensland Australia. It is classified...chondrite of shock stage 4-5. Major phases in this meteorite are olivine, orthoenstatite, diopside, plagioclase |  | | Journal (article/letter/editorial) | | High-pressure phases in a shock-induced melt vein of the Tenham L6 chondrite: Constraints on shock pressure and...and mineralogy of a 580-lm-wide melt vein in the Tenham L6 chondrite were investigated using field-emission...at least 40 ms. Using a synthetic Hugoniot for Tenham and assuming that the sample experienced a peak-shock...GPa near the impact site, we estimate that the Tenham parent body experienced an impact with collision...Introduction Tenham fell in 1879 near Tenham Station (25°440 S, 142°570 E) in South Gregory, Queensland, Australia |  | Xie, Z., Sharp, T. G., Leinenweber, K., DeCarli, P. S., Dera, P. (2011) A new mineral with an olivine structure and pyroxene composition in the shock-induced melt veins of Tenham L6 chondrite. American Mineralogist, 96 (2) 430-436 doi:10.2138/am.2011.3437 | Journal (article/letter/editorial) | | composition in the shock-induced melt veins of Tenham L6 chondrite Zhidong Xie,1,* Thomas g. sharp,2...that occurs in shock-induced melt veins of the Tenham L6 chondrite. The new mineral, identified by transmission...the deep upper mantle. Keywords: Shock-induced, Tenham, olivine, melt vein inTroduCTion Impact metamorphism...those synthesized in high-pressure experiments. The Tenham L6 chondrite was strongly shocked to shock stage...Z. Xie et al. 2006a). The crystal sizes in the Tenham melt veins range from several micrometers down |  | | Journal (article/letter/editorial) | | transformation in a shock-induced melt vein of Tenham L6 chondrite Zhidong Xie ⁎, Thomas G. Sharp School...fragments entrained in a 580-μm-wide melt vein of the Tenham L6 chondrite were investigated using fieldemission...suggest that most solid-state transformations in the Tenham are reconstructive. The transformation of olivine...ringwoodite lamellae; growth rate; Tenham 1. Introduction Tenham is a highly shocked L6 chondrite with...fragments in the same 580-μm-wide melt vein in Tenham. High-pressure minerals are common in and adjacent |  | | Journal (article/letter/editorial) | | chondrite which fell in September 1969 in Victoria, Australia (Lovering et al., 1971). Vigarano is Type III...wollastonite, St. John's Island olivine and Eagle Station olivine were used as standards. Results were corrected...and Keil, 1964). The olivines of Vigarano are more iron-rich, the mean being Fas.8 (c.f. the mean of Fas... However, both Type II meteorites contain a few iron-rich crystals with high lime, e.g. an equant grain...crystals. With this in mind, grains of ringwoodite in Tenham were re-analysed and Reed's calcium-free analysis |  | | Journal (article/letter/editorial) | | interaction in quenched shock-induced melt of the Tenham L6-chondrite Hugues Leroux a; *, Jean-Claude Doukhan...microstructures in the shock-induced melt pockets of the Tenham (L6) chondrite have been investigated by analytical...shock conditions, consist of spherical Fe^Ni metal/iron sulfide globules embedded in a silicate glass matrix...or as tiny silicate or oxide inclusions. In the iron sulfide fraction, the Na content is high ( s 3 wt%)...shock event. The silicate glass also contains tiny iron sulfide precipitates which most probably originated |  | | Journal (article/letter/editorial) | | electron microscopy (ATEM) in two shocked chondrites, Tenham (L6) and Gaines County (H5). We have characterized...shock indices in the relevant minerals of the meteorite (Stoffler et al., 1991; Bischoff and Stoffler...chondrites have been studied: on the one hand, the Tenham meteorite, which is a highly shocked L6 chondrite and...H5 chondrite. Although it is more weathered than Tenham, Gaines County was chosen because it contains quite...reported by Wlotzka (1992) is FaI8.6' and the meteorite is classified in the H5-group. Our own analyses |  | | Journal (article/letter/editorial) | | and conditions of formation of akimotoite in the Tenham chondrite O. TSCHAUNER 1* , C. MA 2 , C. PRESCHER3...finding and the actual composition of akimotoite in Tenham, we show that this mineral has formed by solid–solid...akimotoite from a section of the holotype specimen, the Tenham L6 chondrite. The application of these crystal-chemical...mineral quite clearly. SAMPLES AND METHODS The Tenham L6 chondrite is type material for akimotoite, bridgmanite...effects in the minerals afar the melt veins of the Tenham chondrite indicate peak-shock pressures of at least |  | | Journal (article/letter/editorial) | | found within chromite grains from the matrix of Tenham L6 chondrite. Using this observation and taking...fossil achondrite the highest shocked fossil meteorite studied so far. This is makes Ost € 065 is a piece...Schmitz 2013) with the exception of one fossil meteorite € € 065), which was tentatively classified Osterplana...Society, 2018. 2 S. S. Rout et al. that the meteorite is different from any previously known meteorites...body of € 065 had experienced high shock and the meteorite Ost could be a fragment of the impactor that broke |  | | Journal (article/letter/editorial) | | Electron Petrography of Shock-Produced Veins in the Tenham Chondrite G.D. Price, A. Putnis, and S. O. Agrell...in, and adjacent to the black veins of the Tenham meteorite reveals that the minerals have undergone varying...shock. The orthopyroxenes of the bulk of the meteorite have been transformed to clinopyroxenes in areas...the release of pressure. The olivines of the meteorite are also deformed, and some have been transformed...the fi-phase polymorph. Introduction The Tenham meteorite is a white olivine-hypersthene chondrite, |  | | Journal (article/letter/editorial) | | 859–869, 2013 The pressures and temperatures of meteorite impact: Evidence from micro-Raman mapping of mineral...color of the ringwoodite is due to a small amount of iron in fourfold coordination inside the spinel structure...its discovery by Binns et al. (1969) in the Tenham meteorite (e.g., Gupta and Goyal 2011; Madon and Poirier...shearing during the shock event that extracted the meteorite from its parent body. The melt veins form a network...ringwoodite and olivine were found so far in Taiban meteorite under optical microscope and SEM observations |  | Guo, Zhuang, Li, Yang, Liu, Shen, Xu, Huifang, Xie, Zhidong, Li, Shijie, Li, Xiongyao, Lin, Yangting, Coulson, Ian M., Zhang, Mingming (2020) Discovery of nanophase iron particles and high pressure clinoenstatite in a heavily shocked ordinary chondrite: Implications for the decomposition of pyroxene. Geochimica et Cosmochimica Acta, 272. 276-286 doi:10.1016/j.gca.2019.10.036 | Journal (article/letter/editorial) | | Journal Pre-proofs Discovery of nanophase iron particles and high pressure clinoenstatite in a heavily...Coulson, I.M., Zhang, M., Discovery of nanophase iron particles and high pressure clinoenstatite in a...Published by Elsevier Ltd. Discovery of nanophase iron particles and high pressure clinoenstatite in a...liushen@nwu.edu.cn 1 Abstract Although pure metallic iron (i.e. that with an Fe content of greater than 99%)...ordinary chondrites meteorites. Abundant nanophase iron particles (np-Fe0) were identified in pyroxene glass |  | Guyot, F., Boyer, H., Madon, M., Velde, B., Poirier, J. P. (1986) Comparison of the raman microprobe spectra of (Mg, Fe)2SiO4 and Mg2GeO4 with olivine and spinel structures. Physics and Chemistry of Minerals, 13 (2) 91-95 doi:10.1007/bf00311898 | Journal (article/letter/editorial) | | composition of the phase. 1. Introduction Magnesium and iron orthosilicate (Mg, Fe)2SiO4 is likely to be an important...We have also investigated the effect of varying iron content on the R M P spectrum of olivine and we...silicate magnesian olivine samples with different iron contents: i) A crystal of San Carlos (Arizona) olivine...crystal of Olivine from a thin section of Tenham meteorite donated by the British Museum, Natural History...Fe of unknown origin. iv) A synthetic crystal of iron-rich olivine with 80 at percent Fe, donated by Dr |  | Rout, Surya S., Heck, Philipp R., Zaluzec, Nestor J., Ishii, Takayuki, Wen, Jianguo, Miller, Dean J., Schmitz, Birger (2017) Shocked chromites in fossil L chondrites: A Raman spectroscopy and transmission electron microscopy study. Meteoritics & Planetary Science, 52 (9) 1776-1796 doi:10.1111/maps.12887 | Journal (article/letter/editorial) | | from matrix and shock-melt veins in Catherwood, Tenham, and Coorara L chondrites were studied using Raman...intergrowths of chromite and xieite. Matrix chromite of Tenham has similar dislocation densities and planar fractures...fractures as a chromite from the fossil meteorite Golvsten 001 and higher dislocation densities than in...fossil meteorite Sextummen 003. Using this observation and knowing that the matrix of Tenham experienced...respectively, and we conclude that the studied fossil meteorite chromites are from matrix. (Fig. 1) in Middle |  | Kayama, Masahiro, Sekine, Toshimori, Tomioka, Naotaka, Nishido, Hirotsugu, Kato, Yukako, Ninagawa, Kiyotaka, Kobayashi, Takamichi, Yamaguchi, Akira (2018) Cathodoluminescence of high-pressure feldspar minerals as a shock barometer. Meteoritics & Planetary Science, 53 (7) 1476-1488 doi:10.1111/maps.13092 | Journal (article/letter/editorial) | | on maskelynite and lingunite in L6 chondrites of Tenham and Yamato-790729. Under CL microscopy, bright...Maskelynite occurs widely in various types of shocked meteorite (e.g., lunar meteorites, shergottites, and ordinary...maskelynite, and lingunite in the L6 chondrites of Tenham and Yamato-790729 and to develop better CL barometer...MATERIALS We used two thin sections of L6 chondrites of Tenham from the Department of Geology and Paleontology...optical and electron microscopic observations, Tenham consists of olivine, Cathodoluminescence of high-pressure |  | | Journal (article/letter/editorial) | | pressure in some cases. Thick melt veins in the Tenham L6 chondrite contain majorite and magnesiowüstite...However, very thin melt veins (5–30 μm wide) in Tenham contain glass, olivine, clinopyroxene, and ringwoodite...(Chen et al. 1996), Acfer 040 (Sharp et al. 1997), Tenham (Tomioka and Fujino 1997; Xie et al. 2006), Umbarger...(Table 1), were obtained from the Center for Meteorite Studies at Arizona State University for investigation...Waconda, Pinto Mountains, Beaver, Umbarger, and Tenham. Doubly polished demountable thin sections were |  | Miyahara, Masaaki, Ohtani, Eiji, Kimura, Makoto, Ozawa, Shin, Nagase, Toshiro, Nishijima, Masahiko, Hiraga, Kenji (2011) Evidence for multiple dynamic events and subsequent decompression stage recorded in a shock vein. Earth and Planetary Science Letters, 307 (3) 361-368 doi:10.1016/j.epsl.2011.05.010 | Journal (article/letter/editorial) | | Stixrude. Keywords: decompression melting shocked meteorite olivine dendrite TEM a b s t r a c t We investigated...high-pressure melting experiments of the Allende meteorite and peridotite indicate that the magnesiowüstite...-temperature melting experiments using the Allende meteorite and KLB-1 peridotite mimicking ordinary chondrites...σ 8 2 77 21 10 An = Ab = Or = 9 85 6 5 All iron is assumed ferrous. n = number of analyses, – =...events. It is likely that the parent-body of a meteorite has experienced collisions several times in the |  | | Journal (article/letter/editorial) | | minerals provide clues about the impact events of meteorite parent bodies, including their size and mutual...crater in Arizona, which was the product of an iron meteorite INTRODUCTION The Earth’s crust and upper mantle...ion milling and ultramicrotomy. In the case of meteorite samples, the target particles for TEM observations...ringwoodite, was discovered in the shock vein of the Tenham chondrite (L6; Binns et al. 1969). Ringwoodite...spinel was discovered in the shock vein of a meteorite, the Umbarger chondrite (L6; Xie et al. 2002b) |  | | Journal (article/letter/editorial) | | source acting in the (100) planes (Chondrite L6 Tenham - TEM bright field, g = 002). 257 Fig. 6. Amorphous...characteristics of shock-induced microstructures in the two meteorite major phases, kamacite (bcc, Ni-poor) and taenite...dislocations tend to form cell structures (Iron meteorite Gibeon - TEM bright field). (b) Dislocations...texture (a texture similar to duplex plessite in iron meteorites; e.g., Zhang et al., 1993). In contrast...first discovered by Binns et al. (1969) in the Tenham chondrite. It occurs in meteorites as polycrystalline |  | | Journal (article/letter/editorial) | | tite assemblage in shock veins of Sixiangkou meteorite MING CHEN,1* XIANDE XIE,1 DEQIANG WANG,1 and SICHAO...suggests a liquid miscibility among metal, FeS, and iron oxide, and subsequently quenching under pressure...Science Ltd iangkou meteorite were collected. The major portion of Sixiangkou meteorite is now preserved...Observatory, Chinese Academy of Sciences, Nanjing. The meteorite containing abundant shock veins was classified...1994). The chondritic portion of the Sixiangkou meteorite consists of rockforming minerals, including olivine |
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