 | | Journal (article/letter/editorial) | | transport in chondrites: evidence from the Warrenton meteorite JOHNF. KEBIDGX* Plar~&ologyBrrtnch, NASA Ames...an analyzed augite for Ca, Mg, Si, Ti and Na in glass. For spine& Fe was determined using Masjalahti olivine...e20, SUIll 65.11 2.34 15.22 18.04 0.86 lOI* Glass 60.23 20.33 1.41 10.89 11.88 4.23 1.06 100.02 Microprobe...individual components but the overall composition of the region is given in Table 1. This is probably a glassy...Warrenton predated fmal consolidation of the meteorite so that alteration took place while the surface |  | Henkel, Torsten, Stephan, Thomas, Jessberger, Elmar K., Hoppe, Peter, Strebel, Roger, Amari, Sachiko, Lewis, Roy S. (2007) 3-D elemental and isotopic composition of presolar silicon carbides. Meteoritics & Planetary Science, 42 (7) 1121-1134 doi:10.1111/j.1945-5100.2007.tb00564.x | Journal (article/letter/editorial) | | extracted from two different meteorites—Murchison and Tieschitz—using different acid residue methods. At high...grains, typically making up a few ppm of the host meteorite, are separated into seven groups: types A, B,...meteorites using acid residue methods where the host meteorite is dissolved in a series of different acids (Amari...name, type of presolar SiC, size, and the host meteorite for the all analyzed grains. Additional data is...not determined). Name Type Size (μm) Host meteorite KJG2-243-U KJG2-243-O KJG2-333 KJG2-415 KJG2-422 |  | | Journal (article/letter/editorial) | | ordinary chondrites Chainpur, Mezr-Madaras and Tieschitz: a transmission electron-microscopic study Jutta...chondrites Chainpur (LL3), MezO-Madaras (L3) and Tieschitz (H3) have been studied by means of transmission...clinopyroxenes (Ca-poor) of about the same amount. In a Tieschitz chondrule pure orthopyroxene crystals without...of Chainpur are free of dislocations. Those of Tieschitz contain only few dislocations, among them dislocation...induced by shock, were observed in MezO-Madaras and Tieschitz. In Mezr-Madaras taenite polysynthetically twinned |  | | Journal (article/letter/editorial) | | Printed in USA. Elemental redistribution in Tieschitz and the origin of white matrix ROBERTHUTCHISONl*...coexist within some porphyritic chondrules in Tieschitz. One type is smooth. The other, confined to chondrule...voids. Iron may have been lost from the bulk meteorite, but most other elements merely underwent internal...that aqueous fluid may have been active on the Tieschitz parent body only 2 Ga ago. If correct, this would...(1976). They remarked on the presence of voids in Tieschitz chondrules and suggested that they were produced |  | | Journal (article/letter/editorial) | | minerals in the fine-grained matrices of the Tieschitz unequilibrated ordinary chondrite * and A. J...matrices in the unequilibrated ordinary chondrite Tieschitz (H/L, 3.6) show, for the first time in an ordinary...the metamorphic evolution of the parent body of Tieschitz. The presence of amphiboles as the main hydrous...that are similar to the black matrix of host Tieschitz, suggesting that this dark inclusion was emplaced...in the unequilibrated ordinary chondrite (UOC) Tieschitz by the pioneering studies of Kurat (1970) and |  | | Journal (article/letter/editorial) | | these meteorites. INTRODUCTION In 1969 a stony meteorite was found by Mr. Eric Holm, then a staff member...lesser fragments. This is only the second stony meteorite recovered from South West Africa. We report herein...accessioned into our collection as the Gobabeb meteorite, USNM No. 5744. MACROSCOPIC DESCRIPTION The unbroken...and FS 16 respectively. These values place the meteorite in chemical group H (Keil and Fredriksson, 1964)...the homogeneity of individual chromites. The meteorite also contains non-opaque spinels that exhibit |  | | Journal (article/letter/editorial) | | Wl6-7037/87/%3.00 + .oO The Semarkona meteorite: First recorded occurrence of smectite in an ordinary...undertaken different special&d investigations of the meteorite, no general description appears to exist. This...studies of Tieschitz by KURAT ( 1969) and CHRISTOPHE-MICHEL-LEVY ( 1976) implied that the meteorite had undergone...distributed within each of the three sections. The meteorite was seen to fall in 1940 and has suffered no obvious...through porphyritic objects with clear. isotropic glass. to rare, wholly microcrystalline chondrules. However |  | | Journal (article/letter/editorial) | | porphyritic, or barred structures with interstitial glass). Broken"chondrules were included only if they met...light photomicrographs of granular (A, B, from Tieschitz), cryptocrystalline (C, D, from Hamlet), and metallic...chondrules. One unusual C chondrule separated from Tieschitz, though, is composed of swarms of dendritic crystals...metallsulfide assemblages by shock events in the meteorite parent bodies. However, the morphological similarity...rapidly-quenching molten droplets; interstitial glass and/or barred and/or radial crystalline textures |  | BRIDGES, J. C., ALEXANDER, C. M. O'D., HUTCHISON, R., FRANCHI, I. A., PILLINGER, C. T. (1997) Sodium-, chlorine-rich mesostases in Chainpur (LL3) and Parnallee (LL3) chondrules. Meteoritics & Planetary Science, 32 (4) 555-565 doi:10.1111/j.1945-5100.1997.tb01300.x | Journal (article/letter/editorial) | | obtained on some of these chondrules. Sodium-, C1-rich glass and microcrystalline sodalite (Na4A13Si30&1), nepheline...low-Ca pyroxene, with lesser amounts of feldspar or glass with a composition close to feldspar and Ca-pyroxene...1@50 p m wide channels between chondrules in Tieschitz (H3.6), is a blocky material containing nepheline...dendrites and mesostasis, that chondrules in Tieschitz were leached by hydrous fluid that redeposited...wavelength dispersive spectroscopy (WDS). Mineral and glass compositions were obtained using a CAMECA SX50 wavelength |  | | Journal (article/letter/editorial) | | chondrite Tieschitz range from ⫺0.5 ‰ ⬍ ␦56Fechondrules ⬍ 0.0 ‰ relative to the terrestrial/ meteorite average...among chondrules and matrix samples from the same meteorite. Such effects can result from temperaturesensitive...reflect conditions in the solar nebula and on meteorite parent bodies. Of additional interest is the recent...suite of chondrules from the ordinary chondrite Tieschitz where analyzed in this initial study, along with...cut from larger sawed fragments of each iron meteorite and the pallasite Brenham, washed in 5% nitric |  | | Journal (article/letter/editorial) | | metamorphism. During aqueous alteration, interstitial glass dissolved and was partially replaced by phyllosilicates...wellstudied falls Semarkona, Bishunpur, Chainpur, and Tieschitz, most of the evidence for aqueous alteration has...noted that some "fibrous" pyroxene chondrules in Tieschitz were altered at their surfaces and along cracks...made similar observations on Tieschitz, finding evidence that the glass in some chondrules may have been...represent mixtures of pyroxene, feldspar or feldspathic glass, and troilite: Na, K, Al, CI x 0.83; P, Si x 1.00 |  | | Journal (article/letter/editorial) | | consisting of lithic fragments, chondrules, glass spherules, and glass and mineral fragments that are embedded...successiveimptactevents on the surface of the meteorite parent body, rather than during agglomeration...Fe, Mn, Mg, Ca, Na, K and P in lithic fragments, glass fragments and spherules, and chondrules were made...(1972). It consists of lithic fragments, chondrules, glass spherules, and glsss and mineral fragments that...places is partly glassy. The glass content is low, however, and most matrix glass is partly recrystallized |  | Bridges, John C, Franchi, Ian A, Hutchison, Robert, Sexton, Arabelle S, Pillinger, Colin T (1998) Correlated mineralogy, chemical compositions, oxygen isotopic compositions and size of chondrules. Earth and Planetary Science Letters, 155 (3) 183-196 doi:10.1016/s0012-821x(97)00213-6 | Journal (article/letter/editorial) | | with feldspar and glass in the mesostasis. Textures such as phenocrysts set in glass show that chondrules...occupies 2–40 vol% of the chondrules ŽTable 1.. Glass compositions are characterised generally by a lack...lower overall totals than crystalline feldspar. Glass is more cracked and porous than crystalline feldspar...material in the mesostases is partially devitrified glass close to feldspar in composition. The chondrules...calculate the normative compositions of minerals and glass within it. The chondrules which have mesostases |  | | Journal (article/letter/editorial) | | olivine and orthopyroxene oompositions; igneous glass in chondrules; well-preserved chondrules and ahondritio...Brownafield c10vil3 Dimmit Dimmit Grady (1937) Tieschitz Meteorite 1.2 1.66 1.81 6.0 7.0 11.3 -.-l 2.7 2...with C. HA = Hamlet (KIR~TENet aE., 1963), TI = Tieschitz (EBERHARDT et al., 1966), other letterings aa...ages of UOC listed in order of decreasing PMD Meteorite Bremerdrde* Bremerv&de Prairie Dog Creek Radiation...from Table 3, Brownfield (20 million yr) and Tieschitz (21 million yr) also come from an earlier collision |  | | Journal (article/letter/editorial) | | fluid involving scavenging of cations in the Zag region of the parent body. We suggest that the halite...al. 1999; Clayton and Mayeda 1984). The main meteorite used in this study—Zag—is a fall from Morocco...Mercy (H6), Sharps (H3), Supuhee (H6 breccia), Tieschitz (H3), Wessely (H5), and Weston (H4 breccia). These...isotopic composition. ZAG PETROGRAPHY The main meteorite slice shows a brecciated texture with three discrete...if halite was typically associated with this meteorite type. BULK CHONDRITE HALOGEN ABUNDANCES AND EFFECTS |  | | Journal (article/letter/editorial) | | on isotopic contaminated soils from the Morvan region of France, composition valuable for radiometric...right) in oxide grains separated from the Tieschitz meteorite. The arrows show the presence of a grain...the explosive force of the Canyon Diablo iron meteorite excavated rock that, until that time, had been...introduction of a solution into the ionization region. Laser ablation enables the in situ analysis of...mass spectrometer through a differentially pumped region. The mass spectrometer itself may consist of magnetic |  | | Journal (article/letter/editorial) | | magnetite, olivine, troilite, Fe-Ni-metal, and glass) that were interpreted to be specific kind of “chondri”...4; Allan Hills (ALH) A77015—L3.5; Khohar—L3.6; Tieschitz—H/L3.6; ALHA77278— LL3.7; ALHA77299—H3.7). Microchondrules...a nearly contiguous fine-grained rim. Within a region of the rim, containing Fesulfide and Fe-Ni-metal...fine-grained rims. Glassy microchondrules (>50% glass) are found in Semarkona (Fig. 2) and NWA5717 (Figs...These microchondrules are exceptionally glass-rich (>90% glass), as well as Al- and Si-rich. Figures 2b |  | | Journal (article/letter/editorial) | | 1999; accepted 3 March 2000 Abstract The world’s meteorite collections contain meteorites from at least ∼27...asteroids that are represented in the world’s meteorite collections. They conclude, in agreement with...1977; Wasson, 1995) that the collections contain meteorite groups (¿ 5 members), grouplets (¡ 5 members)...associated with meteorite-asteroid comparisons, and these must be kept in mind when meteorite properties are...Considerable uncertainties exist in relating speci c meteorite types to asteroidal spectral types. The classic |  | | Journal (article/letter/editorial) | | low-Ca pyroxene, high-Ca pyroxene, and glass or devitrified glass. Plagioclase is subordinate. Metal and...high-Ca px ol, glass, M ⁄ S Low-Ca px, high-Ca px ol, plag, M ⁄ S Low-Ca px, ol, glass, M ⁄ S Low-Ca...px, high-Ca px glass, M ⁄ S Low-Ca px, high-Ca px glass, M ⁄ S Low-Ca px, ol, glass, M ⁄ S Low-Ca px...px, high-Ca px ol, plag, M ⁄ S Ol, glass, M ⁄ S ap, cr Mineralogy Plag and high-Ca px form fine-grained...(fibrous to fine-grained) object mantle: massy ol, glass Apatite inside the barred-olivine object High-Ca |  | Sears, Derek W. G., Morse, Andrew D., Hutchison, Robert, Guimon, R. Kyle, Jie, Lu, Alexander, C. M. O'D., Benoit, Paul H., Wright, Ian, Pillinger, Colin, Xie, Tian, Lipschutz, Michael E. (1995) Metamorphism and aqueous alteration in low petrographic type ordinary chondrites. Meteoritics, 30 (2) 169-181 doi:10.1111/j.1945-5100.1995.tb01112.x | Journal (article/letter/editorial) | | increase, the spread of values within an individual meteorite decreases, and peak temperatures and peak widths...complex history involving aqueous alteration as a meteorite-wide process. Figure 1 summarizes much of the...aqueous alteration following accretion on the meteorite parent body. We also conclude that it is doubtful...limited data were also obtained for the Allegan meteorite whose chondrules are equilibrated and members...and 4. The 11.. data for the matrix of a given meteorite show similar spread to that of chondrules, except |  | | Journal (article/letter/editorial) | | Compositions in Stardust SiC Grains from the Murchison Meteorite [#6318] We report the results of Gd and Dy isotopic...Pre-Entry Size and Cosmic History of the Annama Meteorite [#6316] Annama is not part of the prominent “7-8...Noble Gas and Cosmogenic Records of Komar Gaon Meteorite, the Latest Fall in India [#6071] Komar Gaon is...Strangway. D. Mineralogy and Petrology of the Murrili Meteorite [#6237] We report on the classification, mineralogy...Silicate Stardust from Supernovae in the QUE 99177 Meteorite [#6054] Our work on QUE 99177 is an extension |  | | Journal (article/letter/editorial) | | magnetite and pyrrhotite grains in the martian meteorite are of magnetotactic bacterial origin. A6 Meteoritics...flash and that hot I T can be mixed into the H-rich region [ 101. Recently, Cassisi et al. [ I 11 reported...are injected into the high-temperature Heburning region, resulting in the complete burning of H at a very...1501-1513. 4 - - OXYGEN ISOTOPES IN BJURBdLE AND TIESCHITZ CHONDRULES BY ULTRAVIOLET LASER PROBE. R. D. Ash1...This work Ref + 0 X 2 3 4 5 6 Bjurbole Tieschitz 7 8 Fig. 1. form composition and interacted |  | | Book | | METEORITE RESEARCH ASTROPHYSICS AND SPACE SCIENCE LIBRARY A SERIES OF BOOKS ON THE RECENT DEVELOPMENTS...Holland VOLUME 12 METEORITE RESEARCH PROCEEDINGS OF A SYMPOSIUM ON METEORITE RESEARCH HELD IN VIENNA...the publisher INTRODUCTION The Symposium 'Meteorite Research' was conceived originally at the second...need to strengthen international co-operation in meteorite research, asks that the International Atomic Energy...discussed ranged from the computer-assisted study of meteorite orbit statistics, through problems of composition |  | | Journal (article/letter/editorial) | | 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... we estimate from the range of published GEMS (Glass with Embedded metal and Sulfide) compositions [8...Introduction: Eyewitnesses who personally visited the region of the 1908 Tunguska catastrophe soon after the...large fragments of the 1947 Sikhote-Alin iron meteorite [2] fallen in the waterlogged deposits. In the |  | | Book (edition) | | the city limits, but also to the sur¬ rounding region. Terms for materials in GeoRef, for example, "iron...noyarsk in Khakass Autonomous Oblast. BT Russian Republic BT USSR abandoned mines Term introduced in 1985...Autonomous Socialist Republic. CO N422000N432000 E0421500E0400000 UF Abkhasia BT Georgian Republic BT USSR Aberfeldy...Aberfeldy Term introduced in 1989. Town and mining region in Tayside, central Scotland; oil field in Lloydminster...Italy NT Chieti NT Marsica AJjsaroka Fault Abee Meteorite aa Taylor County Texas Texas Southwestern U |
|
