Počet záznamů: 1

Jesenice-A new meteorite fall from Slovenia

  1. 1.
    0365497 - UJF-V 2012 RIV US eng J - Článek v odborném periodiku
    Bischoff, A. - Jersek, M. - Grau, T. - Mirtic, B. - Ott, U. - Kučera, Jan - Horstmann, M. - Laubenstein, M. - Herrmann, S. - Řanda, Zdeněk - Weber, J. - Heusser, G.
    Jesenice-A new meteorite fall from Slovenia.
    Meteoritics & Planetary Science. Roč. 46, č. 6 (2011), s. 793-804 ISSN 1086-9379
    Grant CEP: GA ČR GA202/09/0363
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: ORDINARY CHONDRITES * NOBLE-GASES * SHOCK METAMORPHISM * PRODUCTION-RATES
    Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
    Impakt faktor: 2.719, rok: 2011

    On April 9, 2009, at 3:00 CEST, a very bright fireball appeared over Carinthia and the Karavanke Mountains. The meteoroid entered the atmosphere at a very steep angle and disintegrated into a large number of objects. Two main objects were seen as separate fireballs up to an altitude of approximately 5 km, and witnesses reported loud explosions. Three stones were found with a total weight of approximately 3.611 kg. The measured activity of short-lived cosmogenic radionuclides clearly indicates that two specimens result from a very recent meteorite fall. All cosmogenic radionuclide concentrations suggest a rather small preatmospheric radius of <20 cm; a nominal cosmic-ray exposure age based on (21)Ne is approximately 4 Ma, but the noble gas and radionuclide results in combination indicate a complex irradiation. Jesenice is a highly recrystallized rock with only a few relic chondrules visible in hand specimen and thin section.
    Trvalý link: http://hdl.handle.net/11104/0200727