Podrobnosti záznamu

Název
    A comprehensive study of distribution laws for the fragments of Košice meteorite
Autor
    Gritsevich, M.
    Kohout, Tomáš
    Peltoniemi, J.
    Tóth, J.
    Turchak, L.
    Vinnikov, V.
    Virtanen, J.
Jazyk
    anglicky
Typ dokumentu
    článek v odborném periodiku
Zdrojový dokument - seriál
    Meteoritics & Planetary Science
Svazek/č.
    Roč. 49, č. 3
Strany
    s. 328-345
Rok
    2014
Poznámky
    Projekt: LH12079, GA MŠk3cav_un_auth*0281796
    Rozsah: 18 s. : P
Předmětová kategorie
    distribution
    fragment
    H chondrite
    Kosice
    meteorite
Klíčové slovo
    Comprehensive
    Distribution
    Fragments
    Košice
    Laws
    Meteorite
    Study
Abstrakt (anglicky)
   In this study, we conduct a detailed analysis of the Košice meteorite fall (February28, 2010), to derive a reliable law describing the mass distribution among the recovered fragments. In total, 218 fragments of the Košice meteorite, with a total mass of 11.285 kg, were analyzed. Bimodal Weibull, bimodal Grady, and bimodal lognormal distributions are found to be the most appropriate for describing the Košice fragmentation process. Based on the assumption of bimodal lognormal, bimodal Grady, bimodal sequential, and bimodal Weibull fragmentation distributions, we suggest that, prior to further extensive fragmentation in the lower atmosphere, the Košice meteoroid was initially represented by two independent pieces with cumulative residual masses of approximately 2 and 9 kg, respectively. The smaller piece produced about 2 kg of multiple lightweight meteorite fragments with the mean around 12 g.
   The larger one resulted in 9 kg of meteorite fragments, recovered on the ground, including the two heaviest pieces of 2.374 kg and 2.167 kg with the mean around 140 g. Based on our investigations, we conclude that two to three larger fragments of 500-1000 g each should exist, but were either not recovered or not reported by illegal meteorite hunters.
Přispěvatel
    AV ČR Brno, Geologický ústav
Kód přispěvatele
    AV ČR, GLÚ
Zdrojový formát
    U
Datum importu
    23. 10. 2014