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Browsing by Author "Mayne, Rhiannon G."

Browsing by Author "Mayne, Rhiannon G."

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  • Challenges in detecting olivine on the surface of 4 Vesta 
    Beck, Andrew W.; McCoy, Timothy J.; Sunshine, Jessica M.; Viviano, Christina E.; Corrigan, Catherine M.; Hiroi, Takahiro; Mayne, Rhiannon G. (2013)
    Identifying and mapping olivine on asteroid 4 Vesta are important components to understanding differentiation on that body, which is one of the objectives of the Dawn mission. Harzburgitic diogenites are the main olivine-bearing ...
  • HED Meteorites and Their Relationship to the Geology of Vesta and the Dawn Mission 
    McSween, Harry Y., Jr.; Mittlefehldt, David W.; Beck, Andrew W.; Mayne, Rhiannon G.; McCoy, Timothy J. (2011)
    Howardite-eucrite-diogenite (HED) meteorites, thought to be derived from 4 Vesta, provide the best sampling available for any differentiated asteroid. However, deviations in oxygen isotopic composition from a common ...
  • Hiding in the howardites: Unequilibrated eucrite clasts as a guide to the formation of Vesta's crust 
    Mayne, Rhiannon G.; Smith, Samantha E.; Corrigan, Catherine M. (2016)
    204 howardites in the National Meteorite Collection at the Smithsonian were examined for the presence of fine-grained eucrite clasts, with the goal of better understanding the formation of the uppermost crust of asteroid ...
  • Metal in mesosiderites: Evidence for redox and fractional crystallization 
    Mayne, Rhiannon G.; Caves, L.; McCoy, Timothy J.; Ash, Richard D.; McDonough, William F. (2023)
    Mesosiderites are an amalgamation of crustal silicates and molten metal, and their formational history is not well understood. It is widely believed that redox reactions occurred in the mesosiderites during metal-silicate ...
  • Qarabawi's Camel Charm: Tracing the meteoritic origins of a cultural artifact 
    Mayne, Rhiannon G.; Corrigan, Catherine M.; McCoy, Timothy J.; Day, James M. D.; Rose, Timothy R. (2020)
    Qarabawi's Camel Charm was acquired from Abdullah Qarabawi of the Ababda tribe of eastern Egypt. The charm consists of a chain with four links and an similar to 6.5 cm diameter flattened disk with the Arabic inscription ...

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