Professional and Biographical Information

Degrees

Ph.D, Virginia Tech (2017)
M.S., University of Montana (2012)
B.A., Middlebury College (2010)

Research Interests

I am a metamorphic geologist - I study metamorphic rocks exhumed from the deep parts of ancient and modern mountain belts to “read” the geologic histories they record, and the insight this provides to understanding how mountain belts evolve through space and time. I integrate field observations, petrography, thermodynamic and diffusion modelling, and textrually-constrained isotope geochronology (“petrochronology”) to quantify the depths, temperatures, paths, and timescales of metamorphism in the rock record. This aims to improve understanding of continent- to global-scale geodynamic processes and their relation to crustal evolution through Earth history, including: how heat, mass, and fluids are transferred in Earth’s crust during orogenesis, the tectonic mechanisms for extreme heating and stabilization of Earth’s early continents, and the relationships between processes operating in the deep roots of mountain belts and processes that operate at the surface.

Teaching Interests

I teach Mineralogy (GEOL 271), Igneous and Metamorphic Petrology (GEOL 321), and Principles of Geology (GEOL 111).

 Recent Publications

Guevara, V.E., Caddick, M.J., and Dragovic, B., 2017. Rapid high-temperature decompression recorded by Archean granulites of the northern Wyoming Province. Journal of Metamorphic Geology, 00, 1-23. DOI: 10.1111/jmg.12262

Dragovic, B., Guevara, V.E., Caddick, M.J., and Baxter, E.F., 2016. A pulse of cyptic granulite-facies metamorphism in the Archean Wyoming Craton revealed by Sm-Nd garnet and U-Pb monazite geochronology. Precambrian Research, 283, 24-49. DOI: 10.1016/j.precamres.2016.07. 010

Guevara, V.E. and Caddick, M.J., 2016. Shooting at a moving target: phase equilibria modeling of high temperature metamorphism. Journal of Metamorphic Geology, 34, 209-245. DOI:  10.1111/jmg.12179