Showing 241 - 260 results of 910 for search '"meteorite"', query time: 0.14s Refine Results
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    The origin of chondrules and chondrites / by Sears, Derek W. G., 1948-

    Published 2004
    Subjects: “…Chondrites (Meteorites)…”
  5. 245

    A preliminary analysis of the Shangri-La Bolide on 2017 Oct 4 by Quan-Zhi Ye

    Published 2018-03-01
    Subjects: “…meteorites…”
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  6. 246
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    Evidence of cross-cutting and redox reaction in Khatyrka meteorite reveals metallic-Al minerals formed in outer space by Chaney Lin, Lincoln S. Hollister, Glenn J. MacPherson, Luca Bindi, Chi Ma, Christopher L. Andronicos, Paul J. Steinhardt

    Published 2017-05-01
    “…From this and other evidence, we demonstrate that Khatyrka must have experienced at least two distinct events: first, an event as early as 4.564 Ga in which the first Al-Cu-Fe alloys formed; and, second, a more recent impact-induced shock in space that led to transformations of and reactions between the alloys and the meteorite matrix. The new evidence firmly establishes that the Al-Cu-Fe alloys (including quasicrystals) formed in outer space in a complex, multi-stage process.…”
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    Aqueous alteration without initial water: possibility of organic-induced hydration of anhydrous silicates in meteorite parent bodies by Naoki Hirakawa, Yoko Kebukawa, Yoshihiro Furukawa, Masashi Kondo, Hideyuki Nakano, Kensei Kobayashi

    Published 2021-01-01
    “…Formation of phyllosilicates from anhydrous silicates is a typical alteration effect recorded in primitive meteorites. In addition to mineral and water, organic matter could have been also a significant component in meteorite parent bodies. …”
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    Article
  13. 253

    In situ U–Pb dating of 4 billion-year-old carbonates in the martian meteorite Allan Hills 84001 by R. Tartèse, I. C. Lyon

    Published 2022-12-01
    “…To assess the robustness of the carbonate U–Pb chronometer in deep time, we carried out in situ U–Pb analyses in magnesite–ankerite–calcite carbonates in the martian meteorite Allan Hills (ALH) 84001. Carbonates in ALH 84001 formed at ca. 3.94 <span class="inline-formula">Ga</span>, and there is little evidence that much happened to this rock since then, making it an ideal sample to test the robustness of the U–Pb system in old carbonates. …”
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  14. 254

    Community involvement in the development of an environmental education programme: the Tswaing meteorite crater conservation area as a case study by C.H. Swanepoel, C.P. Loubsser, E.M.J.C. Schaller

    Published 2004-12-01
    “…A case study was undertaken to determine how research insights could be implemented by involving a local community in the design and implementation of environmental education programmes in their environment. The Tswaing Meteorite Crater conservation area project was undertaken with the active participation of teachers, learners and education officers from the communities living around Tswaing, as well as subject specialists. …”
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  15. 255

    The Österplana Fossil Meteorites and… What Else? Terrestrial Cr-Spinels and Zircons in the Ordovician Limestones of the Thorsberg Quarry (Sweden) by Davide Lenaz, Matteo Velicogna, Maurizio Petrelli, Birger Schmitz

    Published 2022-01-01
    “…In the Ordovician limestone of the Thorsberg quarry (South Sweden), about 130 meteorites have been found. Among the extraterrestrial material, several terrestrial Cr-spinels and zircons have been found too. …”
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    Article
  16. 256

    Report on the geological, geomorphological and geodetic field work and meteorite search in the Sør Rondane Mountains, 1988 (JARE-29) by Masao Asami, Hiroshi Makimoto, Masamu Aniya, Masahisa Hayashi, Yuzaburo Iimura, Takashi Hayashi, Hiroshi Naraoka, Yasuhisa Yonezawa, Shuji Fujita, Edward S. Grew

    Published 1988-11-01
    “…This paper is a description of the field operation including logistics and a brief report on the geological, geomorphological and geodetic field work, meteorite search and aerophotography.…”
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  17. 257

    Trapped Ar isotopes in meteorite ALH 84001 indicate Mars did not have a thick ancient atmosphere by Cassata, William S., Shuster, David L., Renne, Paul R., Weiss, Benjamin P.

    Published 2017
    “…Here we show how the [superscript 40]Ar/[superscript 36]Ar ratios of trapped gases within martian meteorite ALH 84001 constrain paleoatmospheric pressure on Mars during the Noachian era [∼4.56–3.8 billion years (Ga)]. …”
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    Exploration of microbial diversity and community structure of Lonar Lake: the only hypersaline meteorite crater lake within basalt rock by Dhiraj ePaul, Shreyas ekumbhare, Snehit S Mhatre, Somak P Chowdhury, Sudarshan A Shetty, Nachiket P Marathe, Shrikant eBhute, Yogesh S Shouche

    Published 2016-01-01
    “…Lonar Lake is a hypersaline and hyperalkaline soda lake and the only meteorite impact crater in the world created in the basalt rocks. …”
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