Ph.D., University of California, San Diego
B.S., University of Washington
B.A., University of Puget Sound
Key Areas of Interest: Geophysics, Paleomagnatism
Teaching Areas: Geophysics
Research Interests: Most of my research centers around the field of paleomagnetism—the study of Earth’s magnetic field as recorded in rocks and sediments. My work can be subdivided into three main areas: understanding how Earth’s magnetic field has changed over time; using these “rock records” of changing magnetic fields and magnetic properties to interpret volcanic processes; and understanding how and how well magnetic minerals record the field.
Bowles, J.A., L. Tatsumi-Petrochilos, J.E. Hammer, S.A. Brachfeld, Multi-component cubic oxide exsolution in synthetic basalts: temperature dependence and implications for magnetic properties, J. Geophys. Res., 117, B03202, doi:10.1029/2011JB008867, 2012.
Bowles, J.A., J.S. Gee, K. Burgess, and R.F. Cooper, Timing of magnetite formation in submarine basaltic glass: a comparison of natural and synthetic samples with implications for geomagnetic paleointensity studies, Geochem. Geophys. Geosys, doi:10.1029/2010GC003404, 2011.
Bowles, J.A., J.E. Hammer, and S.A. Brachfeld, Magnetic and petrologic characterization of synthetic Martian basalts and implications for the surface magnetization of Mars, J. Geophys. Res. – Planets, 114, E10003, doi:10.1029/2009JE003378, 2009.
Bowles, J., J.S. Gee, D.V. Kent, M. Perfit, A. Soule, D. Fornari, Paleointensity results from 9° - 10°N on the East Pacific Rise: implications for timing and extent of eruptive activity, Geochem. Geophys. Geosys., 7, Q06006, doi:10.1029/2005GC001141, 2006.
Bowles, J., L. Tauxe, J. Gee, D. McMillan, S. Cande, The source of tiny wiggles in Chron C5: A comparison of sedimentary relative intensity and marine magnetic anomalies, Geochem. Geophys. Geosys., 4, doi:10.1029/2002GC000489, 2003.
Bowles, J., J. Gee, J. Hildebrand, L. Tauxe, Archaeomagnetic intensity results from California and Ecuador: evaluation of regional data, Earth Planet Sci. Lett., 203, 967-981, 2002.