 | | Journal (article/letter/editorial) | | the interchondrule matrix of the Tieschitz (H3) chondritic meteorite R. HUTCHISON Mineralogy Department...(Natural History), London SW7 5BD Abstract The Tieschitz chondrite is a disequilibrium assemblage of silicate...KEYWORDS: chondrites, meteorites, Tieschitz, augite. Introduction T H E Tieschitz chondrite is a disequilibrium...White matrix is rich in normative nepheline and albite, both of which have been identified as crystal...and Bevan and Axon (1980) suggested that the Tieschitz assemblage had accreted at (800+ 100) ~ This hot |  | | 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) | | 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 |  | 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) | | between chondrules in Tieschitz (H3.6), is a blocky material containing nepheline, albite (Ashworth, 1981;...dendrites and mesostasis, that chondrules in Tieschitz were leached by hydrous fluid that redeposited...textures, with plagioclase (A), sodalite (So) and albite (Ab) crystallites intergrown with pyroxene dendrites...halogen-associated metasomatism in the H3 chondrite Tieschitz (Kurat, 1969; Alexander et al., 1994). The Chainpur...silica undersaturation in the forsterite-diopside-albite-quartz-nephelinesystem (Cox et al., 1979). The |  | 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) | | Sears et al. w19x and those with high anorthite and albite contents in their mesostases to group A1–4 and...w19x: A1–4, high normative anorthite content; A5, albite; B, SiO 2 -rich glass; A–B mixture. e Volume %...as group B on the basis of Fig. 1. Quartz ŽQ. –albite ŽAb. –anorthite ŽAn. normative compositions of...composition based on w19x: B, glassy, SiO 2 -rich; A5, albite-rich; A1–4, anorthite-rich. with high normative...anorthite has a higher liquidus temperature than albite and so is less stable in a glassy form. The mineralogical |  | | Journal (article/letter/editorial) | | 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...Michel-LCvy (1976) made similar observations on Tieschitz, finding evidence that the glass in some chondrules...procedure allowed characterization of the same region of the sample to be carricd out at all scales....chondrules, tiny holes speckle the entire bleached region. Bleached zones typically occur as annular regions |  | | Journal (article/letter/editorial) | | unequilibrated chondrites also shows that each meteorite has been metamorphosed, with the alteration ranging...chondrites Sharps (FREDRIKSSON er al., 1968) and Tieschitz (WOOD, 1963; KURAT, 1968, 1970; CHRIS~OPHE-MICHEL-LEVY...rocks. Furthermore, the fine-grained matrix in Tieschitz also contains more Na20, K20 and A1203. Olivine...identified by X-ray diffraction in the matrix of Tieschitz (WOOD, 1962). The matrix appears to be complex...chondrites. These are, first, clasts in Sharps, Tieschitz and Krymka (FREDRIKSSONet al., 1968; KURAT, 1970; |  | | Journal (article/letter/editorial) | | successiveimptactevents on the surface of the meteorite parent body, rather than during agglomeration...end-members anorthite (An; Materials CaAl,Si,O,), albite (Ab; NaAlSi,O,), and orthoclaae (Or, KAlSi,O,)...polymict-brecciated meteorites, such as Siena (Fig. IB). This meteorite is composed of lithic fragments of merent igneous...successive impact events on the surface of the meteorite parent body (FREDRIKSSON and KEIL, 1963; KURAT...observations on chondrules from the Tieschitz meteorite. In Meteorite Research, (editor P. M. Millman), |  | 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...compositions are spread over the normative quartz-albite-anorthite triangle and chondrule olivines contain |  | | Journal (article/letter/editorial) | | 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...a glass-rich microchondrule that appears to be albite-normative (e.g., c25-01 in NWA 5717; Table 4) there...composition of ~80% of microchondrules and form a dense region at <15 wt% FeO between ~30–50 wt% MgO (Fig. 10)...dusty microenvironments of the chondrule-forming region for OCs. (1) Precursor type I chondrules exist |  | | Journal (article/letter/editorial) | | Plagioclase occurring in Knyahinya and Ouzina objects is albite-oligoclase with Ab81–88 and Ab75–89, respectively...study of separates chondrules from the Richardton meteorite. Earth and Planetary Science Letters 42:223–236...of meteorites: A compilation of stony and iron meteorite analyses. Meteoritics 25:323–337. Jenner G. A...observations on chondrules from the Tieschitz meteorite. In: Meteorite research, edited by Millman P. M...and Essene E. J. 2008. The La Paz Icefield 04840 meteorite: Mineralogy, metamorphism, and origin of an amphibole- |  | | 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...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...impact structures containing large boulder-sized meteorite rocks may be present. References: [1] Anfinogenov |  | | 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 |  | | 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 |  | | Report (volume) | | (1965) Crystal structure of reedmergnerite, a boron albite, and its relation to feldspar crystal chemistry...new hydrous calcium borate, from the Death Valley region, California. Am Mineral 44:911-919 Erd RC, McAllister...new hydrous calcium borate from the Death Valley region, California. Am Mineral 46:560-571 Erd RC, Morgan...hydrous strontium borate from the Kramer Borate District, California. USGS Prof Paper 424-C:294-297 Erd...paragenesis of the Little Three mine pegmatites, Ramona District, San Diego County, California. Mineral Ree 20:101-127 | | | Report (volume) | | (1965) Crystal structure of reedmergnerite, a boron albite, and its relation to feldspar crystal chemistry...hydrous calcium borate, from the Death Valley —~ region, California. Am Mineral 44:911-919 Erd RC, McAllister...new hydrous calcium borate from the Death Valley region, California. Am Mineral 46:560-571 Erd RC, Morgan...hydrous strontium borate from the Kramer Borate District, California. USGS Prof Paper 424-C:294-297 Erd...paragenesis of the Little Three mine pegmatites, Ramona District, San Diego County, California. Mineral Rec 20:101-127 |  | | Journal (article/letter/editorial) | | isotopic variability in troilite within a same meteorite, our data are consistent with literature results:...from three new lithologies in the Tagish Lake meteorite [5] that have experienced less but varied degrees...()200–400&), with large scatter within a single meteorite [5]. To avoid potential contamination by D-rich...Chinese contemporary limestones [3] show that the meteorite flux was enhanced by two orders of magnitude following...recent study [5] on SEC grains found in the fossil-meteorite-bearing limestone from the Thorsberg quarry revealed |  | | Book | | After their parents escaped to the Dominican Republic, Dick and his brother joined them there. With...family came to the United States from the Dominican Republic in 1940 (it was not unusual for immigrants to...it, it was just at this time that the Allende meteorite fell and the minerals contained within the so-called...Silliman Chair and being curator of the Yale meteorite collection. In a continuation of Karl’s foray...chemical histories both in the solar nebula and in meteorite parent bodies. It was in CAIs that the great discovery |  | | Report (volume) | | Vereinigung der Freunde der Mineralogie und Geologie. Republic of Germany. Auk- Auk. American Ornithologists'...Hohenlohe'sche Buchhandlung Ferd. Rau. Ohringen, Federal Republic of Germany. Elisha Mitchell Sci. Soc. Jour. -...wissenschaftliche Geographie. Verlag. Bonn, Federal Republic of Germany. XVI Ferd. Diimmlers SERIAL LIST...Nordrhein-Westfalen. Krefeld, Westphalia, Federal Republic of Germany. [France] Bur. Recherches Geol. et...Vereinigung. Ferdinand Enke Verlag. Stuttgart, Federal Republic of Germany. Geol. Soc. America Abs. with Programs- |  | | Book | | position of 56Fe; and (iv) the abundance peaks in the region past iron at the neutron closed shell positions...mixing caused by the convection, the entire unstable region evolves essentially chemically homogeneously—replenishing...of burning region (central or shell burning) and depleting the fuel elsewhere in that region at the same...burning of this fuel then commences outside that region. Table 1 summarizes the burning stages and their...maximum temperatures that have been reached in each region in the preceding hydrostatic burning stages (Table | | | Book | | position of 56Fe; and (iv) the abundance peaks in the region past iron at the neutron closed shell positions...mixing caused by the convection, the entire unstable region evolves essentially chemically homogeneously—replenishing...of burning region (central or shell burning) and depleting the fuel elsewhere in that region at the same...burning of this fuel then commences outside that region. Table 1 summarizes the burning stages and their...maximum temperatures that have been reached in each region in the preceding hydrostatic burning stages (Table |
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