Julie Bowles

Graduate Committee Chair; Associate Professor
 Lapham Hall 358


PhD, University of California, San Diego
BS, University of Washington
BA, University of Puget Sound

Research Interests

Dr. Bowles is interested in how the Earth’s magnetic field varies over time; and understanding how and how well magnetic minerals record these variations; and using these “rock records” of changing magnetic fields and magnetic properties to interpret volcanic processes. Recent projects include documenting variations in Earth’s field intensity in pyroclastic flows in the western U.S.; using recorded field variations to constrain eruptive processes on the Galapagos Spreading Center and the Juan de Fuca Ridge; and creating synthetic igneous rocks in the lab to better understand the magnetic recording process in rocks from Earth and Mars.

Teaching Areas


Selected Publications

Bowles, Julie, Lappe, Sophie-Charlotte, Jackson, Mike, Arenholz, Elke, and van der Laan, Gerrit. “Time-temperature dependent Curie temperature variations in titanomagnetite: evidence from XMCD and Mössbauer” Geochemistry Geophysics Geosystems 20. (2019): 2272–2289.
Clague, David, Caress, David, Dreyer, Brian, Lundsten, Lonny, Paduan, Jenny, Portner, Ryan, Spelz-Madero, Ronald, Bowles, Julie, Castillo, Paterno, Guardado-France, Rigoberto, Le Saout, Morgane, Martin, Julie, Santa Rosa-del Rıo, Miguel, and Zierenberg, Robert. “Geology of the Alarcon Rise, Southern Gulf of California” Geochemistry, Geophysics, Geosystems (2018).
Fedorchuk, Nicholas D., Dornbos, Stephen Q., Corsetti, Frank A., Isbell, John L., Petryshyn, Victoria A., Bowles, Julie, and Wilmeth, Dylan T. “Early non-marine life: Evaluating the biogenicity of Mesoproterozoic fluvial-lacustrine stromatolites” Precambrian Research 275. (2016): 105-118.
Brachfeld, Stefanie A., Cuomo, David, Tatsumi-Petrochilos, Lisa, Bowles, Julie, Shaw, Deepa, and Hammer, Julia. “Contributions of multidomain titanomagnetite to the intensity and stability of Mars crustal magnetic anomalies” Geophysical Research Letters 41.22 (2014): 7997-8005.
Bowles, Julie, Coleman, Alice, McClinton, J. T., Sinton, John, White, Scott, and Rubin, Kenneth. “Eruptive timing and 200-year episodicity at 92°W on the hotspot-influenced Galapagos Spreading Center derived from geomagnetic paleointensity” Geochemistry Geophysics Geosystems 15.6 (2014): 2211–2224.