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    Radial transport in the solar nebula: Implications for moderately volatile element depletions in chondritic meteorites

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    Author
    Ciesla, Fred J.
    Issue Date
    2008-01-01
    Keywords
    solar nebula
    composition of meteorites
    origin of the solar system
    
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    Citation
    Ciesla, F. J. (2008). Radial transport in the solar nebula: Implications for moderately volatile element depletions in chondritic meteorites. Meteoritics & Planetary Science, 43(4), 639-655.
    Publisher
    The Meteoritical Society
    Journal
    Meteoritics & Planetary Science
    URI
    http://hdl.handle.net/10150/656414
    DOI
    10.1111/j.1945-5100.2008.tb00675.x
    Additional Links
    https://meteoritical.org/
    Abstract
    In this paper, we explore the possibility that the moderately volatile element depletions observed in chondritic meteorites are the result of planetesimals accreting in a solar nebula that cooled from an initially hot state (temperatures >1350 K out to ~2-4 AU). A model is developed to track the chemical inventory of planetesimals that accrete in a viscously evolving protoplanetary disk, accounting for the redistribution of solids and vapor by advection, diffusion, and gas drag. It is found that depletion trends similar to those observed in the chondritic meteorites can be reproduced for a small range of model parameters. However, the necessary range of parameters is inconsistent with observations of disks around young stars and other constraints on meteorite parent body formation. Thus, counter to previous work, it is concluded that the global scale evolution of the solar nebula is not the cause for the observed depletion trends. Instead, it appears that localized processing must be considered.
    Type
    Article
    text
    Language
    en
    ISSN
    1945-5100
    ae974a485f413a2113503eed53cd6c53
    10.1111/j.1945-5100.2008.tb00675.x
    Scopus Count
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    Meteoritics & Planetary Science, Volume 43, Number 4 (2008)

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