Browsing National Museum of Natural History by Author "Kelley, Katherine A."

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Spherulite crystallization induces Fe-redox redistribution in silicic melt

Castro, Jonathan M.; Cottrell, Elizabeth; Tuffen, Hugh; Logan, M. Amelia V.; Kelley, Katherine A. (2009)

Rhyolitic obsidians from Krafla volcano, Iceland, record the interaction between mobile hydrous species liberated during crystal growth and the reduction of ferric iron in the silicate melt. We performed synchrotron µ-FTIR ...
Water and the Oxidation State of Subduction Zone Magmas

Kelley, Katherine A.; Cottrell, Elizabeth (2009)

Mantle oxygen fugacity exerts a primary control on mass exchange between Earth's surface and interior at subduction zones, but the major factors controlling mantle oxygen fugacity (such as volatiles and phase assemblages) ...

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