 | | Journal (article/letter/editorial) | | Pergamon PreaLtd. Printed inNorthern Ireland The Shaw meteorite KURT FREDRXSSON and BRIAN MMION U.S. National...accepted in retied form 8 May 1907) Ab&&-Shaw is an unusual meteorite, having chondritic composition but lacking...with minor amounts of diopside (CassFerrMg,,), plagioclase (Abs@q,Or,), troilite, and nickel-iron. The chemical...brief account of the f&id: “Rex Anderson of Shaw, Colorado, was one of the individuals who heard about...rare group of amphoteritea”. Shaw is a hamlet in Lincoln County, Colorado, about 100 miles due east of |  | Rubin, Alan E., Rehfeldt, Angeline, Peterson, Eric, Keil, Klaus, Jarosewich, Eugene (1983) FRAGMENTAL BRECCIAS AND THE COLLISIONAL EVOLUTION OF ORDINARY CHONDRITE PARENT BODIES. Meteoritics, 18 (3) 179-196 doi:10.1111/j.1945-5100.1983.tb00820.x | Journal (article/letter/editorial) | | clast-bearing fragmental breccias. We consider any meteorite that contains one or more impact melt-rocks or...fragmental breccia, even though large portions of the meteorite may appear unbrecciated. Differences in the abundances...Chateau-Renard (L6), Johnson City (L6) and Lincoln County (L6), were selected for more detailed study...been acquired prior to breccia metamorphism. Lincoln County contains a heterogeneous, unequilibrated melt-rock...Institution. Every available specimen of each meteorite was examined. Antarctic chondrites were avoided |  | | Journal (article/letter/editorial) | | CretaceousTertiary boundary clays hthe westem interior of the USA Geochim. Cosmochim.Acta 56,1695-1703. Scmmz B., ANDRRSSON...boundary in Haiti. Nature 349,482487. SMIT J. (1990) Meteorite impact, extinctions and the Cretaceous-Tertiary...Abstract-Bison LL6 chondrite is an impact breccia. The meteorite consistsof unmolten clasts and accemy melt-breccia...fragments totalling 11 kg were found in Rush County, Kansas, USA. The Catalogue of Mefeon'fes(Graham ef af...there may be a strewn field associated with this meteorite. I have seen the original 3 kg piece and I can |  | | Journal (article/letter/editorial) | | Texas 77058, USA 2Mail Code SN2, NASA Johnson Space Center, Houston, Texas 77058, USA TPresent address:...NASA Johnson Space Center, Houston, Texas 77058, USA *Correspondence author's e-mail address: david.w...chrome-rich spinels with interstitial albitic plagioclase and minor silica-alumina-alkali-rich glass. Only...correlation resulting from igneous fractionation. Plagioclase is variable in composition; Or3.0-7.7Ab79.8-84...indicated that it is an unusual meteorite (Score and Lindstrom, 1992b). The meteorite is a medium- to coarse-grained |  | | Journal (article/letter/editorial) | | between volcanic glass and coexisting sanidine and plagioclase feldspars Critical Comment 0. K. MAFZUEL 177...30 kbar G. J. TAYLOR, KLAUS KEIL, 323 The Shaw meteorite: history of a chondrite consisting of impact-melted...Noble gases, carbon and sulfur in Allende (C3) meteorite heated at 400-1000°C 405 Sulfur isotope studies...Clarke Book Reviews RICHARDA. F. GRIEVE 449 “Meteorite Craters”, edited by G. J. H. MCCALL MARC VUAGNAT...ANDREW M. DAVIS Trace elements in the Allende meteorite-IV. boid olivine aggregates J. H. CROCKETand |  | Taylor, G.J, Keil, Klaus, Berkley, J.L, Lange, D.E, Fodor, R.V, Fruland, R.M (1979) The Shaw meteorite: History of a chondrite consisting of impact-melted and metamorphic lithologies. Geochimica et Cosmochimica Acta, 43 (3) 323-337 doi:10.1016/0016-7037(79)90198-4 | Journal (article/letter/editorial) | | The Shaw meteorite: history of a chondrite consisting of impact-melted and metamorphic lithologies G...Center. Houston. TX 77058. U.S.A Abstract-The Shaw L-group chondrite conSlsts of three Intermingled...by larger (up 10 I mm) orthopyroxene grains: plagioclase occurs between orthopvroxene . crystals and rare...cryptocrystalllne material occurs withln the plagioclase. The skeletal olivine crystals contam 0.08-0...slab shows. contrary 10 published opinions. that Shaw contains normal L-group chondrite abundances of |  | | Journal (article/letter/editorial) | | 2% TiO2 and 10% A1,O3) in the Angra des Reis meteorite, meteoritic OH' .o A M~Z $1206 C . E . ...t : coexisting orthoproxene and diopside in the Shaw chondrite; L: orthopyroxene in achondrites and mesosiderites;...nickel-iron Augite Diopside, olivine Pyroxene, plagioclase Stony-irons Pallasites (2) Siderophyre (1)...Orthopyroxene, olivine, nickel-iron Pyroxene, plagioclase, nickel-iron Irons Ilexahedrites (8) Octahedrites...olivine and pyroxenes, with minor amounts of sodic plagioclase. In all these meteorites the olivine and pyroxenes |  | Fodor, R.V., Keil, Klaus, Prinz, Martin, Ma, M.-S., Murali, A.V., Schmitt, R.A. (1980) CLAST-LADEN MELT-ROCK FRAGMENT IN THE ADAMS COUNTY, COLORADO, H5 CHONDRITE. Meteoritics, 15 (1) 41-62 doi:10.1111/j.1945-5100.1980.tb00172.x | Journal (article/letter/editorial) | | CLAST·LADEN MELT-ROCK FRAGMENT IN THE ADAMS COUNTY, COLORADO, H5 CHONDRITE R.V. Fodor Department of Geosciences...University Corvallis, OR 97331 The Adams County, Colorado, H5 chondrite contains a lithic fragment,...the presence of the fragment in the H-group Adams County host and documents the coexistence of unequilibrated...Fodor etal., 1977a). Examination of the Adams County, Colorado, chondrite revealed a l-cm sized complex fragment...no petrographic characteristics of any known meteorite type. It has a fine-grained igneous matrix enclosing |  | | Journal (article/letter/editorial) | | 1007/s00710-018-0598-3 SHORT COMMUNICATION Shaw meteorite: water-poor and water-rich melt inclusions...section of the light-colored lithology of the Shaw meteorite, small melt inclusions, typically with diameters... Given the bulk water concentration of the Shaw meteorite is about 1%, typical of L-group chondrites...concentration is highly probable. Keywords Shaw meteorite . Melt inclusion . H2O and D2O concentration...section of the light-colored lithology of the Shaw meteorite (Fig. 1), which is, according to Fredriksson |  | | Journal (article/letter/editorial) | | California, Los Angeles, California 90095–1567, USA *E-mail: aerubin@ucla.edu (Received 29 July 2009;...subhedral enstatite grains embedded in sodic plagioclase. Numerous vugs, ranging from a few micrometers...millimeters in size, constitute 5 vol% of the meteorite. They occur nearly exclusively within the Mayo...melt solidified, the bubbles became cavities; plagioclase and fluor-richterite crystallized at the margins...collisions, impact melted material is rare. Norton County has an impact-comminuted matrix and a few clasts |  | Casanova, I., Keil, K., Wieler, R., Miguel, A. San, King, E. A. (1990) Origin and history of chondrite regolith, fragmental and impact-melt breccias from Spain. Meteoritics, 25 (2) 127-135 doi:10.1111/j.1945-5100.1990.tb00984.x | Journal (article/letter/editorial) | | (1990) © Meteoritical Society, 1990. Printed in USA Origin and history of chondrite regolith, fragmental...University of New Mexico, Albuquerque, NM 87131, USA 2ETH-Zurich Institut fiir Kristallographie und Petrographie...Geosciences, University of Houston, Houston, TX 77004, USA *New address: Planetary Geosciences Division, Hawaii...University of Hawaii at Manoa, Honolulu, HI 96822, USA (Received 9 October 1989; accepted in revised/arm...rock clasts. INTRODUCTION THE SPANISH NATIONAL METEORITE COLLECTION of the Museo Nacional de Ciencias Naturales |  | | Journal (article/letter/editorial) | | the system of Van Schmus and Wood (1967); the meteorite as a whole cannot. St. Mesmin is also polymict...n this a n d other respects t h e y resemble the Shaw chondrite which shows evidence of a n a t e x i...of the writer's work on St. Mesmin was to locate Shaw-like m a t e r i a l in St. Mesmin. The p r e s...petrographic a n d mineraological d a t a for the meteorite as a whole a n d for elasts w i t h i n it. More...intense recrystallization. These, which resemble the Shaw chondrite (Fredriksson and Mason, 1967) in some |  | | Journal (article/letter/editorial) | | Printed in USA Fractionation of refractory siderophile elements in metal from the Rose City meteorite E. RUBIN...California, Los Angeles, California 90095-1567, USA (Received 1994 December 8; accepted in revised form... This meteorite is the most extensively studied impact-melted OC and the first such meteorite to be described...Wiik, 1966). It fell on 1921 October 17 in Ogemaw County, Michigan; three stones totaling -11 kg were recovered...crystallization calculations are magmatic iron meteorite group can be ranked in a sequence in shown in |  | | Journal (article/letter/editorial) | | Copyright © 2002 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/⫺1898 $22.00 ⫹ .00...University of California, Los Angeles, CA 90095-1567, USA (Received October 20, 2000; accepted in revised form...a single stone in a cultivated field in Hockley County, Texas, in 1968 (Grady, 2000). In his brief description...et al., 1996), Chico, L6 (Bogard et al., 1995), Shaw, L6 (Taylor et al., 1979), Ramsdorf, “L7” (Yamaguchi...clasts are a few 100- to 300-m-size chromite-plagioclase assemblages consisting of 40 to 60 vol% euhedral |  | | Journal (article/letter/editorial) | | Impact melting of the largest known enstatite meteorite: Al Haggounia 001, a fossil EL chondrite Alan...California, Los Angeles, California 90095–1567, USA 2 Institute of Geophysics and Planetary Physics,...California, Los Angeles, California 90095–1567, USA * Corresponding author. E-mail: aerubin@ucla.edu...melt rock with a mass of ~3 metric tons. The meteorite exhibits numerous shock effects including (1)...and relict chondrules; (9) crystallization of plagioclase from the melt; and (10) quenching of the vesicular |  | WEIRICH, J. R., WITTMANN, A., ISACHSEN, C. E., RUMBLE, D., SWINDLE, T. D., KRING, D. A. (2010) The Ar-Ar age and petrology of Miller Range 05029: Evidence for a large impact in the very early solar system. Meteoritics & Planetary Science, 45 (12) 1868-1888 doi:10.1111/j.1945-5100.2010.01124.x | Journal (article/letter/editorial) | | Arizona 85721, USA 2 Lunar and Planetary Institute, 3600 Bay Area Blvd., Houston, Texas 77058, USA 3 Department...Arizona, 1040 E 4th St., Tucson, Arizona 85721, USA 4 Geophysical Laboratory, Carnegie Institution of...Rd. NW, Washington, District of Columbia 20015, USA * Corresponding author. E-mail: jweirich@lpl.arizona...constrain the time–temperature history of the meteorite. By examining heavily shocked or shock-melted...et al. 2004; Swindle et al. 2009). Antarctic meteorite Miller Range (MIL) 05029 was initially selected |  | | Journal (article/letter/editorial) | | THE COMPOSITION OF THE CHASSIGNY METEORITE Brian Mason, J.A. Nelen Smithsonian Institution Wadlington...mass spectrometric analysis of the Chassigny meteorite has given the following data (in ppm): Rb 0.4...mineralogical and textural features, indicate that this meteorite is an olivinerich cumulate, possibly genetically...to the nakhlites. INTRODUCTION The Chassigny meteorite fell on October 3, 1815, near the village of Chassigny...distributed in collections. Chassigny is a unique meteorite, an olivine achondrite showing no close relationship |  | Keil, Klaus, Fodor, R.V., Starzyk, P.M., Schmitt, R.A., Bogard, D.D., Husain, L. (1980) A 3.6-b.y.-old impact-melt rock fragment in the plainview chondrite: Implications for the age of the H-group chondrite parent body regolith formation. Earth and Planetary Science Letters, 51 (2) 235-247 doi:10.1016/0012-821x(80)90207-1 | Journal (article/letter/editorial) | | others like it) is not a new type of achondritic meteorite, but formed by impact melting and fractionation...suggests that regolith formation processes on meteorite parent bodies took place as recently as ~<3.63...sometimes in plagioclase (chadacrysts of olivine in oikocrysts of pyroxene (and plagioclase, Fig. 2c, d))...d)). Plagioclase occurs mainly as anhedral patches filling interstices between the Fe-Mg silicate phases...chondrite Shaw [ 19], except that it lacks the aligned and skeletal olivine crystals that Shaw has. In |  | | Journal (article/letter/editorial) | | made of O18/O16 ratios of coexisting minerals (plagioclase, pyroxene, olivine) from nine ordinary chonclrites...seven of the type 5 and type 6 chondrites, while Shaw (L6) has a higher temperature (1300%), and Bjurbole...the classification by VAN SCHMUS and WOOD (1967), Shaw belongs to the L6 group of ordinary chondrites....However, PREDRIKSSON and MASON (1967) pointed out that Shaw is a peculiar chondrite, appearing to have crystallized...that there exists a difference of KD values between Shaw (0.88) and 21 other type 6 ordinary chondrites (0 |  | | Journal (article/letter/editorial) | | California, Los Angeles, California 90095–1567, USA National Institute of Aerospace, Hampton University...100 Exploration Way, Hampton, Virginia 23666–6186, USA * Corresponding author. E-mail: aerubin@ucla.edu...approximately 1 Ga ago. About 30 vol% of the meteorite consists of a melt matrix containing faceted and...completely surrounded by 2–20 lm size patches of plagioclase. Suspended in the melt are 30–370 lm size ellipsoidal...Antarctica in 2006 and described in Antarctic Meteorite Newsletter 31(2) as having a ‘‘melt-textured matrix |  | | Journal (article/letter/editorial) | | 2004 Copyright © 2004 Elsevier Ltd Printed in the USA. All rights reserved 0016-7037/04 $30.00 ⫹ .00 Pergamon...University of California, Los Angeles, CA 90095-1567, USA (Received February 28, 2003; accepted in revised...Abstract—In addition to shock effects in olivine, plagioclase, orthopyroxene and Ca-pyroxene, petrographic...chondrites (OC) include chromite veinlets, chromite-plagioclase assemblages, polycrystalline troilite, metallic...as L6 because it contains some large (⬎50 m) plagioclase grains. Hammadah al Hamra 027, classified as |  | | Journal (article/letter/editorial) | | of Chemistry, Fordham University, Bronx, NY 10458 USA Department of Earth and Planetary Sciences, American...American Museum of Natural History, New York, NY 10024 USA 3 Faculty of Science, Ibaraki University, Mito 310-8512...the work of Dodd et al. (1975) on the Shaw L chondrite. For Shaw, they inferred peak temperatures of at...heating and resulting composition and textures of the Shaw chondrite was due to impact (e.g. Taylor et al.... 5 analysis, the Allende Standard Reference Meteorite (Jarosewich et al., 1987) is used for external |  | | Journal (article/letter/editorial) | | THE HEDJAZ METEORITE K. Fredriksson and B.J. Fredriksson National Museum of Natural History Department...Washington, D.C. 20560 F. Kraut* The Hedjaz meteorite has been studied in detail and on a chemical basis...The exact date and place of fall of the Hedjaz meteorite is unknown. However, according to bedouins (Couyat...tridymite in some chondrules and well-developed plagioclase in the matrix, Kraut and Fredriksson (1971) concluded...confidently appreciate the pre-electron probe meteorite studies of, e.g. Tschermak (1885). PETROLOGY AND |  | | Journal (article/letter/editorial) | | similar in mineraiogy and chemistry to the host meteorite, but display shock rnet~o~hi~ features, produced...intergrowths around remnants of low-Ca pyroxene and plagioclase glass with skeletal poikilitic inclusions of...greater than 300 kbar. THE PAMPA dei Iniierr~o meteorite was found in a ploughed field at Avia Terai...(1974) reported a new chemical analysis for this meteorite and confirmed its classification as an ordinary... The various shock m~amo~hic features in the meteorite are used in conjunction with experimental shock-wave |  | | Journal (article/letter/editorial) | | California, Los Angeles, California 90095–1567, USA 2 Lunar and Planetary Laboratory, The University...85721–0092, USA 3 Department of Geosciences, The University of Arizona, Tucson, Arizona 85721–0077, USA * Corresponding...metal-sulfide intergrowths, agglutinates, chromite-plagioclase assemblages, melt pockets, and various kinds...olivine (3.6); Fs25 low-Ca pyroxene (3.4); An10 plagioclase (2.63); troilite (4.67). Mineral compositions...irradiated for 8 h at the USGS TRIGA Reactor, Denver, Colorado. Linear interpolation based on position within |
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