Regolith grains returned by the Hayabusa mission to asteroid 25143 Itokawa provide the only samples currently available to study the interaction of chondritic asteroidal material with the space weathering environment. Several studies have documented the surface alterations observed on the regolith grains, but most of these studies involved olivine because of its abundance. Here we focus on the rarer Itokawa plagioclase grains, in order to allow comparisons between Itokawa and lunar soil plagioclase grains for which an extensive data set exists.


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    Title :

    Plagioclase-Rich Itokawa Grains: Space Weathering, Exposure Ages, and Comparison to Lunar Soil Grains


    Contributors:
    Keller, L. P. (author) / Berge, E. (author)

    Conference:

    Lunar and Planetary Science Conference ; 2017 ; The Woodlands, TX, United States


    Publication date :

    2017-03-20


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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    Plagioclase flotation and lunar crust formation

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