Elizabeth Cottrell

TL;DR: Integrated measurements of redox-sensitive ratios of oxidized iron to total iron (Fe3+/ΣFe) determined with Fe K-edge micro–x-ray absorption near-edge structure spectroscopy and pre-eruptive magmatic H2O contents of a global sampling of primitive undegassed basaltic glasses and melt inclusions indicate a direct link between mass transfer from the subducted plate and oxidation of the mantle wedge.

TL;DR: In this paper, the authors show that global MORBs yield average Fe{sup 3+}/{Sigma}Fe ratios of 0.16 {+-} 0.01 (n = 103), which trace back to primary MORB melts equilibrated at the conditions of the QFM buffer.

TL;DR: In this article, the authors measured olivine-hosted melt inclusions from a single eruption of Agrigan volcano, Marianas, in order to test the influence of differentiation processes vs. source conditions on the Fe{sup 3+}/{Sigma}Fe ratio, a proxy for system oxygen fugacity.

TL;DR: In this paper, major, volatile, and trace element concentrations in combination with Fe^(3+)/∑Fe ratios determined in olivine-hosted glass inclusions and submarine glasses from five Mariana arc volcanoes and two regions of the Mariana Trough.

TL;DR: In this article, a second-order polynomial model was proposed for the correlation between the centroid and Fe3+/∑Fe, yielding a precision of ± 0.0045.