Showing 121 - 140 results of 910 for search '"meteorite"', query time: 0.13s Refine Results
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    Identifying the wide diversity of extraterrestrial purine and pyrimidine nucleobases in carbonaceous meteorites by Yasuhiro Oba, Yoshinori Takano, Yoshihiro Furukawa, Toshiki Koga, Daniel P. Glavin, Jason P. Dworkin, Hiroshi Naraoka

    Published 2022-04-01
    “…All DNA/RNA nucleobases were identified in carbonaceous meteorites. Having been provided to the early Earth as a component in carbonaceous meteorites, these molecules might have played a role for the emergence of genetic functions in early life.…”
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    Article
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    EVOLUTION OF COMET-LIKE ORBITS OF METEORITE- PRODUCING GROUPS AND THEIR PARENT BODIES by N. A. Konovalova, Yu. M. Gorbanev, N. H. Davruqov

    Published 2019-11-01
    “…The D SH -criterion of Southworth and Hawkins [4], which is a quantitative measure of orbital similarity, has remained below 0.3 [5] for about 5,000 years in the groups of Neuschwanstein and Mason Gully meteorites and for about 3,500 to 4,500 years in the groups of Benešov and Park Forest meteorites. …”
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    Article
  5. 125

    Elemental composition and physical characteristics of the massive meteorite of the Saudi empty quarter by M.S. AlSalhi, V. Masilamani, Nasser Alarifi, W. Aslam Farooq, M. Atif, Shahid Ramay, Hayat Saeed Althobaiti, Saqib Anwar, Ibrahim Elkhedr, Bassam A. Abuamarah

    Published 2021-03-01
    “…The meteorite found in the Empty Quarter of Kingdom of Saudi Arabia (KSA) is the largest meteorite found in the KSA and has the shape of an irregular ellipsoid with semi-axes of 0.65 m, 0.38 m, and 0.27 m; a density of 6400 kg/m3; and a mass of 2550 kg. …”
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    Article
  6. 126

    Investigation of structural, mechanical, magnetic properties and hysteresis modelling of Dawasir meteorite by M. Atif, Saqib Anwar, W.A. Farooq, Muhammad Ali Shar, Bassam Abuamarah, M.S. AlSalhi, V. Masilaimani, Nasser Alarifi, Ibrahim El-Khedr, K.S. Alimgeer

    Published 2022-04-01
    “…The hardness testing showed that the meteorite consisted of a soft material with 22.5 HRC Rockwell hardness. …”
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    Article
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    Mineralogy of Silicate-Natrophosphate Immiscible Inclusion in Elga IIE Iron Meteorite by Victor V. Sharygin

    Published 2020-05-01
    “…Rare type of silicate inclusions found in the Elga iron meteorite (group IIE) has a very specific mineral composition and shows silicate (≈90%)–natrophosphate (≈10%) liquid immiscibility due to meniscus-like isolation of Na-Ca-Mg-Fe phosphates. …”
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    Chiral selection, isotopic abundance shifts, and autocatalysis of meteoritic amino acids by Michael A. Famiano, Richard N. Boyd, Takashi Onaka, Toshitaka Kajino

    Published 2021-07-01
    “…The discovery of amino acids in meteorites has presented two clues to the origin of their processing subsequent to their formation: a slight preference for left-handedness in some of them and isotopic anomalies in some of their constituent atoms. …”
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    Article
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    Challenges of identifying putative planetary-origin meteorites of non-igneous material by Yana Anfinogenova, John Anfinogenov

    Published 2019-09-01
    “…This paper summarizes the challenges of identifying planetary-origin meteorites of non-igneous composition - particularly those of sedimentary origin. …”
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    Article
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    Galactic cosmic ray effects on iron and nickel isotopes in iron meteorites by Cook, David L., Leya, Ingo, Schonbachler, Maria

    Published 2021
    “…The minimal effects of GCRs on Fe and Ni isotopes should not hamper the search for nucleosynthetic variations in these two elements or the application of the 60Fe‐60Ni chronometer in iron meteorites or chondrites.…”
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    Journal Article
  16. 136

    Fast delivery of meteorites to Earth after a major asteroid collision. by Heck, P, Schmitz, B, Baur, H, Halliday, A, Wieler, R

    Published 2004
    “…Such an efficient meteorite delivery track, however, has not been verified. …”
    Journal article
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    Probing the early stages of shock-induced chondritic meteorite formation at the mesoscale by Rutherford, M, Chapman, D, Derrick, J, Patten, J, Bland, P, Rack, A, Collins, G, Eakins, D

    Published 2017
    “…Chondritic meteorites are fragments of asteroids, the building blocks of planets, that retain a record of primordial processes. …”
    Journal article
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