 | KRING, David A., HILL, Dolores H., GLEASON, James D., BRITT, Daniel T., CONSOLMAGNO, Guy J., FARMER, Mike, WILSON, Skip, HAAG, Robert (1999) Portales Valley: A meteoritic sample of the brecciated and metal-veined floor of an impact crater on an H-chondrite asteroid. Meteoritics & Planetary Science, 34 (4) 663-669 doi:10.1111/j.1945-5100.1999.tb01372.x | Journal (article/letter/editorial) | | $IMeteoritical Society, 1999. Printed in USA. Portales Valley: A meteoritic sample of the brecciated and...Laboratory, University of Arizona, Tucson, Arizona 85721, USA 2Specola Vaticana, 1-00120 Vatican City State 31001...Tucson, Arizona 85745, USA 4457 Rural Route D, Portales, New Mexico 88130, USA 5Post Ofice Box 27527,... Tucson, Arizona 85726, USA *Correspondence author's e-mail: kring@lpl.arizona.edu (Received 1998 October...of meteorite fiagments fell at -0730 h local time on 1998 June 13 near the town of Portales, New Mexico |  | | Journal (article/letter/editorial) | | Copyright Ā© 2001 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/01 $20.00 ā«¹ .00 Pergamon...Pergamon PII S0016-7037(00)00516-0 The Portales Valley meteorite breccia: Evidence for impact-induced melting...California, Los Angeles, California 90095-1567, USA Department of Chemistry and Biochemistry and Department...University of California, Los Angeles, California 90095, USA 3 Department of Geological Sciences, University of...78712-1101, USA (Received July 21, 1999; accepted in revised form July 24, 2000) AbstractāThe Portales Valley |  | | Journal (article/letter/editorial) | | 90095ā1567, USA of Meteoritics, Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque...Albuquerque, New Mexico 87131, USA *Corresponding author. E-mail: aerubin@ucla.edu (Received 26 January...petrographic features (e.g., chromite-plagioclase assemblages, chromite veinlets, silicate darkening)...extensive silicate darkening, the occurrence of chromite-plagioclase assemblages, and the impact-melted...on OC asteroids. Different components of the meteorite could record different episodes of the rockās |  | | Journal (article/letter/editorial) | | Copyright Ā© 2002 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/02 $22.00 ā«¹ .00 Pergamon...University of California, Los Angeles, CA 90095-1567, USA (Received February 7, 2002; accepted in revised form...the dispersion within silicate grains of thin chromite melt veins and trails of metallic Fe-Ni and troilite...of metallic Cu (3.6), the presence of numerous chromite-plagioclase assemblages, and coarse grains of...(1999) and Rubin et al. (2001) modeled the Portales Valley H chondrite as a rock that experienced significant |  | | Journal (article/letter/editorial) | | accepted 23 October 2003) AbstractāThe Reliegos meteorite is an L5 ordinary chondrite. The chondrules are...and chemical zoning and is composed mainly of chromite and plagioclase, with minor amounts of merrillite... INTRODUCTION Reliegos is the last recorded meteorite fall in Spain (December 28, 1947) in the town...pairing of the specimens, and indicated that the meteorite was an ordinary chondrite L5 (McCoy et al. 1990)...CHEMISTRY A sample of 1157 mg of the Reliegos meteorite was used for X-ray fluorescence analyses with |  | | Journal (article/letter/editorial) | | http://meteoritics.org Portales Valley: Petrology of a metallic-melt meteorite breccia Alex RUZICKA1*... MITTLEFEHLDT3, and Marc D. FRIES4 1Cascadia Meteorite Laboratory, Portland State University, Department...Oregon 97207, USA 2Southwest Meteorite Laboratory, P.O. Box 95, Payson, Arizona 85547, USA 3NASA Johnson...Space Center, Mail Code SN2, Houston, Texas 77058, USA 4Carnegie Institution of Washington, Geophysical...Branch Road Northwest, Washington, D. C. 20015, USA *Corresponding author. E-mail: ruzickaa@pdx.edu |  | | Journal (article/letter/editorial) | | 2004 Copyright Ā© 2004 Elsevier Ltd Printed in the USA. All rights reserved 0016-7037/04 $30.00 ā«¹ .00 Pergamon...University of California, Los Angeles, CA 90095-1567, USA (Received February 28, 2003; accepted in revised...equilibrated ordinary chondrites (OC) include chromite veinlets, chromite-plagioclase assemblages, polycrystalline...some type-6 S1 OC (e.g., GuarenĢa, KernouveĢ, Portales Valley, all of which contain relict shock features)...veins are present, making it difficult to identify chromite veinlets. In reflected light, many limonite veins |  | | Journal (article/letter/editorial) | | Geology, 1721 SW Broadway, Portland, OR, USA Cascadia Meteorite Laboratory, Portland State University,... 1721 SW Broadway, Portland, OR, USA Received 27 October 2014; accepted in revised form 17 April 2015;...stage S1), Bruderheim (S4), Leedey (S4), and Morrow County (S5) were aļ¬ected by variable shock deformation...settings. In contrast, KernouveĢ (H6 S1), Portales Valley (H6/7 S1), and MIL 99301 (LL6 S1) appear to...Additionally, KernouveĢ, Morrow County, Park, MIL 99301, and possibly Portales Valley, show evidence for having |  | | Journal (article/letter/editorial) | | Copyright Ā© 2003 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/03 $30.00 ā«¹ .00 Pergamon...doi:10.1016/S0016-7037(03)00107-8 Chromite-Plagioclase assemblages as a new shock indicator; implications...California Los Angeles, CA 90095-1567, USA AbstractāChromite in ordinary chondrites (OC) can be used...equilibrated H, L and LL chondrites shows that unshocked chromite grains occur in equant, subhedral and rounded...metallic Fe-Ni and/or troilite. Some unmelted chromite grains are fractured or crushed during whole-rock |  | | Journal (article/letter/editorial) | | classification of 2280 ordinary chondrites of the meteorite thin section collection at the Institut fā¬ ur...with petrologic type. This is the case for all meteorite groups. The main criteria to define a rock as...et al. 2017). The distinct shock features in meteorite components have been studied in great detail and...(fragmentation, mixing, relithification). Especially meteorite breccias provide information about impact processes...abundant in both differentiated and chondritic meteorite groups and together with rare impact melt rocks |  | Van Roosbroek, N., Debaille, V., Pittarello, L., Goderis, S., Humayun, M., Hecht, L., Jourdan, F., Spicuzza, M. J., Vanhaecke, F., Claeys, Ph. (2015) The formation of IIE iron meteorites investigated by the chondrule-bearing Mont Dieu meteorite. Meteoritics & Planetary Science, 50 (7) 1173-1196 doi:10.1111/maps.12463 | Journal (article/letter/editorial) | | investigated by the chondrule-bearing Mont Dieu meteorite N. VAN ROOSBROEK1*, V. DEBAILLE1, L. PITTARELLO2...Libre de Bruxelles, CP 160/02, 50 Avenue F. D. Roosevelt, Brussels B-1050, Belgium 2 Earth System Science...Florida State University, Tallahassee, Florida 32310, USA 5 Museum fā¬ ur Naturkunde, Leibniz-Institut fā¬ ur...of Wisconsin-Madison, Madison, Wisconsin 53706, USA * Corresponding author. E-mail: nadia.van.roosbroek@ulb...AbstractāA 435 kg piece of the Mont Dieu iron meteorite (MD) contains cm-sized silicate inclusions. Based |  | | Journal (article/letter/editorial) | | University of Hawaiāi at MÄnoa, Honolulu, HI, 96822, USA 2 Dept. of Mechanical and Industrial Engineering...University of Massachusetts, Amherst, MA 01003, USA 3 Center for Computational Astrophysics, National...heating. Impacts during metamorphism created Portales Valley and two other H6 chondrites with large metallic...rates at ~400-500 Ā°C (Folco et al., 1996). Olivine-chromite thermometry gave similar mean temperatures for...We specifically included the H chondrite, Portales Valley, which clearly suffered an ancient impact, |  | | Journal (article/letter/editorial) | | of Massachusetts, Amherst, Massachusetts 01003, USA *Corresponding author. E-mail: jig0@ecs.umass.edu... 1679 Ā© Meteoritical Society, 2003. Printed in USA. 1680 R. J. Reisener and J. I. Goldstein textural...Mercurio Richardton Estacado Guarena Kernouve Portales Valley Bjurbole Saratov Elenovka Barwell Innisfree...calibrated using schreibersite from the Grant iron meteorite. Chemical zoning profiles in the metallic phases...abut troilite and chromite, and rounded blebs of silicate, troilite, and chromite occasionally occur |  | | Journal (article/letter/editorial) | | / The halite-bearing Zag and Monahans (1998) meteorite breccias: Shock metamorphism, thermal metamorphism...California 90095-1567, USA 2NASA Johnson Space Center, Mail Stop ST, Houston, Texas 77058, USA 3Department of...and State University, Blacksburg, Virginia 24061, USA *Correspondence author's e-mail address: aerubin@ucla...Printed in USA. 126 Rubin eta!. that exhibit diverse alteration effects can potentially shed new light...boundaries. Chromite also exhibits varying degrees of shock. Clast A4 contains fractured chromite, clast C2 |  | | Journal (article/letter/editorial) | | Copyright Ā© 2002 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/ā«ŗ1898 $22.00 ā«¹ .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...3.3; metallic Fe-Ni, 7.95; troilite, 4.67; and chromite, 4.7 g cmā«ŗ3. Sizes of constituents were determined...matrix, and grains of metallic Fe-Ni, troilite, and chromite (e.g., fig. 2.1 of Dodd, 1981). Brecciated OC |  | Friedrich, Jon M., Rubin, Alan E., Beard, Sky P., Swindle, Timothy D., Isachsen, Clark E., Rivers, Mark L., Macke, Robert J. (2014) Ancient porosity preserved in ordinary chondrites: Examining shock and compaction on young asteroids. Meteoritics & Planetary Science, 49 (7) 1214-1231 doi:10.1111/maps.12328 | Journal (article/letter/editorial) | | of Chemistry, Fordham University, Bronx, New York 10458, USA Department of Earth and Planetary Sciences...American Museum of Natural History, New York, New York 10024, USA 3 Institute of Geophysics and Planetary...90095ā1567, USA 4 Lunar and Planetary Laboratory, The University of Arizona, Tucson, Arizona 85721, USA 5 Department...The University of Arizona, Tucson, Arizona 85721, USA 6 Consortium for Advanced Radiation Sources, University...University of Chicago, Argonne, Illinois 60439, USA 7 Vatican Observatory, V-00120 Vatican City State, Rome |  | | Journal (article/letter/editorial) | | journal pertain. Formation of non-magmatic iron-meteorite group IIE John T. Wasson Department of Earth,...University of California Los Angeles, CA 90095-1567 USA (jtwasson@ucla.edu) Abstract. Instrumental neutron-activation...concentrations in metal from veins in H5 chondrite Portales Valley fall within the IIE range with the exceptions...Because much of the Cr is in minor phases (mainly chromite), sampling errors result in relative confidence...silicates nor opaque inclusions (excepting one tiny chromite) in Arlington. It was because of this that Wasson |  | | Journal (article/letter/editorial) | | California, Los Angeles, California 90095ā1567, USA E-mail: aerubin@ucla.edu (Received 23 May 2003; revision...stage S4āS5 include the presence of chromite veinlets, chromite-plagioclase assemblages, numerous occurrences...annealing. The shock indicators include chromite veinlets, chromite-plagioclase assemblages, metal and sulfide... 1499 Ā© Meteoritical Society, 2003. Printed in USA. 1500 A. E. Rubin intergrowths, metallic Cu,...cm-long slab of NWA 428 (LC 1887) in the UCLA meteorite collection was examined macroscopically. Thin |  | Gyollai, IldikĆ³, Gyollai, IldikĆ³, BĆ©rczi, SzaniszlĆ³, Fintor, KrisztiĆ”n, Nagy, Szabolcs, Gucsik, Arnold (2015) Thermal metamorphism of the MĆ³cs meteorite (L6) revealed by optical microscopy and BSE imaging. Central European Geology, 58 (4) 321-333 doi:10.1556/24.58.2015.4.3 | Journal (article/letter/editorial) | | 58.2015.4.3 Thermal metamorphism of the MĆ³cs meteorite (L6) revealed by optical microscopy and BSE imaging...mineralogical signatures in this meteorite. The studied thin section of MĆ³cs meteorite contains 26 chondrules with...chondrite is a 6.5 petrographic type. Keywords: MĆ³cs meteorite, L-chondrite, thermal metamorphism, chondrule...chondrite, which was observed to fall in Kolozs County (Hungary) in 1882 (Ferko et al. 2000); it broke...shocked meteorite containing well-developed shock veins. The mineral assemblage of the MĆ³cs meteorite consists |  | | Journal (article/letter/editorial) | | annealing Alex M. Ruzicka ā, Richard C. Hugo Cascadia Meteorite Laboratory, Portland State University, Department...from the H (KernouveĢ, Portales Valley), L (Leedey, Bruderheim, Morrow County, Park) and LL (Miller Range...and S5) chondrites (Leedey, Bruderheim, Morrow County) that were aļ¬ected by impacts at a time (<4 Ga...preferred orientation (LPO) in Bruderheim and Morrow County that corresponds to a principal compression direction...direction. Olivine h0 0 1i axes in Morrow County were partially re-oriented perpendicular to this compression |  | | Journal (article/letter/editorial) | | and Planetary Institute, USRA, Houston, TX 77058, USA a r t i c l e i n f o Article history: Received...ago, the KāAr chronometer rarely gives times of meteorite formation. Instead, KāAr ages obtained by the...inherited from the melt. Differences between meteorite ages obtained from other chronometers (e.g., IāXe...incorrect and that the KāAr age of a 4500 Ma meteorite should be possibly increased, but by no more than... . . . . . . . . . . . . . . . ArāAr ages by meteorite type . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | Copyright Ā© 2002 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/02 $22.00 ā«¹ .00 Pergamon...PII S0016-7037(02)00958-4 A IAB-complex iron meteorite containing low-Ca clinopyroxene: Northwest Africa...University of California, Los Angeles, CA 90095-1567, USA Departments of Earth and Space Sciences and Chemistry...University of California, Los Angeles, CA 90095-1567, USA (Received September 5, 2001; accepted in revised...2002) AbstractāNorthwest Africa 468 (NWA 468) is a new ungrouped, silicate-rich member of the IAB complex |  | Ruzicka, Alex, Brown, Ryan, Friedrich, Jon, Hutson, Melinda, Hugo, Richard, Rivers, Mark (2015) Shock-induced mobilization of metal and sulfide in planetesimals: Evidence from the Buck Mountains 005 (L6 S4) dike-bearing chondrite. American Mineralogist, 100 (11) 2725-2738 doi:10.2138/am-2015-5225 | Journal (article/letter/editorial) | | 2, Richard Hugo2 and Mark Rivers5 1 Cascadia Meteorite Laboratory, Portland State University, 1721 SW...Department of Chemistry, Fordham University, Bronx, New York 10458, U.S.A. 4 Department of Earth and Planetary...Sciences, American Museum of Natural History, New York, New York 10024, U.S.A. 5 Consortium for Advanced...metal accumulations in substantially unmelted meteorite parent bodies, and they have implications for...producing both metal-veined chondrites such as Portales Valley (Kring et al. 1999; Rubin et al. 2001; Ruzicka |  | | Journal (article/letter/editorial) | | silicate inclusions in the Sombrerete ungrouped iron meteorite: Implications for the origins of IIE-type silicate-bearing...Melinda HUTSON1, and Christine FLOSS2 1Cascadia Meteorite Laboratory, Department of Geology, Portland State...Broadway, P.O. Box 751, Portland, Oregon 97207ā0751, USA 2Washington University, Laboratory for Space Sciences...Sciences, Campus Box 1105, Saint Louis, Missouri 63130, USA *Corresponding author. E-mail: ruzickaa@pdx.edu (Received...plagioclase (~8%, mainly An70ā92), Cl-apatite (~7%), chromite (~4%), yagiite (~1%), phosphaterich segregations |  | | Journal (article/letter/editorial) | | University of California, Los Angeles, CA 90095-1567, USA Received 31 May 2006; accepted in revised form 20...processes have been invoked previously for other meteorite groups. Rubin (2004) studied 210 equilibrated...blebs within silicate grains, chromite veinlets within silicate grains, chromiteāplagioclase assemblages,...counting system using a step interval of 220 lm. Chromite and silicate compositions were determined with...1 Thin sections examined in the current study Meteorite Sections Classiļ¬cation Shock stage ALH A77081 |
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