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    Evaluation of Various Methods for Determining Bulk Compositions of Chondrules and Other Objects in Petrographic Thin Sections (2019)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: Studies of many objects in petrographic thin section, such as melt inclusions in igneous rocks, chondrules and Ca-Al rich inclusions in chondritic meteorites, or clasts in lunar and other breccias, require or can benefit from knowledge of their bulk compositions. Given the scarcity of these materials, the reluctance of curators to provide more abundant material, and the extreme difficulty of cleanly separating such objects from their rock matrices, geochemical and cosmochemical studies need the ability to determine their bulk compositions from in situ methods, such as defocused beam analysis, or quantitative chemical mapping by electron beam methods.
    Keywords: Geophysics
    Type: JSC-E-DAA-TN69198 , Microscopy & Microanalysis Meeting (M&M 2019); Aug 04, 2019 - Aug 08, 2019; Portland, OR; United States
    Format: application/pdf
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