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Profile Page

Katherine A. Kelley
Assoc. Professor of Oceanography
Horn 206

Educational Background

Ph.D., Earth Sciences
B.A., Geology
Boston University
Macalester College

Areas of Specialization


My research presently focuses on three primary themes: • Material cycling at convergent margins; sediment and altered oceanic crust inputs vs. arc volcanic outputs • Magmatic volatile budgets and the effects of H2O on mantle melting • Solid earth volatile cycles and the long-term evolution of the oxidation state of the earth's crust and interior. A new, state-of-the-art laser-ablation ICP-MS lab has been installed at GSO, and is actively used for the analysis of trace elements and isotope ratios in silicate melt inclusions, minerals, and submarine glasses. I also use state-of-the-art synchrotron facilities at NSLS and APS to develop and employ the XANES technique for analysis of Fe3+/∑Fe ratios in glasses and melt inclusions.


I currently teach the following courses: •OCG 110: The Ocean Planet (w/ Kincaid); Next offered Fall 2013 •OCG 525: The Chemistry of the Earth (w/ Spivack); Next offered Fall 2013 •OCG 628: Petrology of the Oceanic Crust; Next offered Spring 2015 •OCG 643: Subduction Zones (w/ Kincaid); Next offered Spring 2015 •OCG 645: High-Temperature Geochemistry; Next offered Spring 2014


Marion Lytle
Maryjo Brounce
in progress


Kelley, K.A., Cottrell, E., Brounce, M. (2013). The Relationship between fO2 and Calc-Alkaline Affinity of Arc Magmas. Proceedings of the 2013 Goldschmidt Conference.

Brounce, M.N., Kelley, K.A., Cottrell, E. (2012), Fe3+/∑Fe variation in Mariana arc and back-arc magmas and primary fO2 of the mantle wedge. presented at 2012 Fall Meeting, AGU, San Francisco, Calif., T54A-05.

Lytle, M.L., Kelley, K.A., Hauri, E.H., 2012. Determining the origin of slab-derived fluids beneath back-arc spreading centers. presented at 2012 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec, T51D-2631.

Brounce, M., K. A. Kelley, and E. Cottrell (2011), Effect of differentiation on Fe oxidation in arc basalts, Mineralogical Magazine, 75(3), 586.

Kelley, K. A., and E. Cottrell (2011 [INVITED]), Importance of oxygen fugacity for temperatures and melting regimes beneath ridges, arcs, and hot spots, presented at 2011 Fall Meeting, AGU, San Francisco, Calif., 5-9 Dec, V32B-08.

Kelley, K. A. (2010 [KEYNOTE]), Volatiles and Subduction Zone Magmas, State of the Arc Conference (SOTA), Santorini, Greece.

Cottrell, E., and K. A. Kelley (2010 [KEYNOTE]), Basaltic Glasses as Records of Mantle Oxygen Fugacity, Proceedings of the 2010 Goldschmidt Conference, Geochimica et Cosmochimica Acta, 74(11 S1), A192.

Kelley, K. A., E. Cottrell, M. Brounce, and B. Parks (2010 [INVITED]), The influence of magmatic differentiation on the oxidation state of Fe in arc magmas, Proceedings of the 2010 Goldschmidt Conference, Geochimica et Cosmochimica Acta, 74(11 S1), A505.

Kelley, K. A., and E. Cottrell (2010 [INVITED]), Redox Conditions of Subduction Zone Magmas and Mantle, presented at 2010 Fall Meeting, AGU, San Francisco, Calif., 13-17 Dec, Abstract V11F-03.


Member for
6 years 23 weeks