My research interests lie at the junction between metamorphic petrology and global geochemistry. Specifically, I am working to understand how metamorphic reactions release and sequester CO2 and to discover how these solid Earth processes relate to the global carbon cycle and climate.
Isson, T.T., Planavsky, N.J., Coogan, L., Stewart, E.M., Ague, J.J., Bolton, E.W., Zhang, S., McKenzie, N.R., and Kump, L.R. (accepted pending revision). Evolution of the Global Carbon Cycle and Climate Regulation on Earth. Global Biogeochemical Cycles.
Stewart, E.M., Ague J.J., Ferry, J.M., Tao, R.B., Schiffries, C.M., Isson, T.T., and Planavsky N.J. (2019). Carbonation and decarbonation reactions: implications for planetary habitability. American Mineralogist Special Collection: Earth in Five Reactions. 104 (10), 1369-1380.
Stewart, E.M., & Ague, J. J. (2018). Infiltration-driven metamorphism, New England, USA: regional CO2 fluxes and implications for Devonian climate and extinctions. Earth and Planetary Science Letters. 489, 123-134.
Stewart, E. M., Baxter, E. F., & Ague, J. J. (2017). Initiation and duration of Grampian orogenesis constrained by refined Sm–Nd garnet geochronology of the Ballantrae ophiolite, Scotland. Journal of the Geological Society. 174 (6), 968-978.