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    Chondrule collisions in shock waves

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    Author
    Ciesla, F. J.
    Issue Date
    2006-01-01
    Keywords
    shock waves
    chondrule formations
    solar nebula
    chondrules
    
    Metadata
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    Citation
    Ciesla, F. J. (2006). Chondrule collisions in shock waves. Meteoritics & Planetary Science, 41(9), 1347-1359.
    Publisher
    The Meteoritical Society
    Journal
    Meteoritics & Planetary Science
    URI
    http://hdl.handle.net/10150/656184
    DOI
    10.1111/j.1945-5100.2006.tb00526.x
    Additional Links
    https://meteoritical.org/
    Abstract
    Detailed numerical models have shown that solar nebula shock waves would be able to thermally process chondrules in a way that is consistent with experimental constraints. However, it has recently been argued that the high relative velocities that would be generated between chondrules of different sizes immediately behind the shock front would lead to energetic collisions that would destroy the chondrules as they were processed rather than preserving them for incorporation into meteorite parent bodies. Here the outcome of these collisions is quantitatively explored using a simple analytic expression for the viscous dissipation of collisional energy in a liquid layer. It is shown that molten chondrules can survive collisions at velocities as high as a few hundred meters per second. It is also shown that the thermal evolution of chondrules in a given shock wave varies with chondrule size, which may allow chondrules of different textures to form in a given shock wave. While experiments are needed to further constrain the parameters used in this work, these calculations show that the expected outcomes from collisions behind shock waves are consistent with what is observed in meteorites.
    Type
    Article
    text
    Language
    en
    ISSN
    1945-5100
    ae974a485f413a2113503eed53cd6c53
    10.1111/j.1945-5100.2006.tb00526.x
    Scopus Count
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    Meteoritics & Planetary Science, Volume 41, Number 9 (2006)

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