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Filtering by: Creator Delaney, Alyne Elizabeth Remove constraint Creator: Delaney, Alyne Elizabeth Creator Grocke, Stephanie B. Remove constraint Creator: Grocke, Stephanie B.

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  • Magma dynamics and evolution in continental arcs : insights from the Central Andes

    Creator:
    Grocke, Stephanie B.
    Abstract:
    Constraining the magma evolution and dynamics that lead to the eruption of large volume continental arc systems is fundamental to our understanding of continental crust formation. An investigation into the magmagenesis that results in the formation of the Central Volcanic Zone (CVZ) in the Andes of South America, situated atop...
    Resource Type:
    Dissertation
    Full Text:
    3. Elizabeth Cottrell and the Smithsonian’s Office of Fellowships: Predoctoral Fellowship Program

  • GrockeRoleCrustalEruptive.pdf

    Creator:
    Grocke, Stephanie B., Cottrell, Elizabeth, de Silva, Shanaka, and Kelley, Katherine A.
    Abstract:
    The composition of the continental crust is closely tied to subduction zone magmatism. Elevated oxygen fugacity (fO₂) plays a central role in fostering crystallization of oxide minerals and thereby aids in generating the calc-alkaline trend of iron depletion that characterizes the continents. Along continental margins, arc magmas erupt through continental...
    Full Text:
    Stephanie B. Grocke a,b,∗, Elizabeth Cottrell a, Shanaka de Silva b, Katherine A. Kelley c a Smithsonian