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Holli M. FreyAssistant Professor of Geology |
Education:
B.A. 1999, Franklin Marshall College; Ph.D. 2005 Geology, University of Michigan
Research Interests:
My research is focused on the evolution of volcanic and plutonic systems, phenocryst crystallization, and the weathering of volcanic terrains. I study the geochemical, geochronological, and physical aspects of continental magmatic systems at a variety of scales, from volcanic fields to individual phenocrysts. I am interested in how volcanic systems change over time and how that history is recorded in individual phenocrysts. I am also interested in how volcanic rocks break down and weather and their contribution to soil and watershed chemistry. My research is field based and uses a variety of analytical tools, including ICP-MS, EMPA, SEM, GIS, and 40Ar/39Ar geochronology.
Courses:
- Geology 112: Environmental Geology
- Geology 117: Natural Disasters
- Geology 220: Mineral Science
- Geology 320: Origin of Igneous and Metamorphic Rocks
- Geology 206: Volcanology
- Geology 405: Senior Seminar
Publications:
- Lange RA, Frey HM, Hector J (2009) A thermodynamic model for the plagioclase-liquid hygrometer/thermometer. American Mineralogist, 94, 494-506.
- Frey HM, Manon MRF (2009) Montserrat: The classroom to the field and back again. Geological Society of America Abstracts with Programs, Vol. 41, No. 7, p. 601
- Crabtree S, Lange RA, Frey HM (2009) A Kinetic barrier to plagioclase nucleation in degassing andesite and dacite liquids during rapid ascent. Geological Society of America Abstracts with Programs, Vol. 41, No. 7, p. 416
- Lange, R.A., Frey, H.M., Hall, C., Delgado-Granados, H., 2007, Evidence From a Crystal-Poor, Zoned (Rhyolite-Andesite) Pyroclastic Deposit From Volcan Tepetiltic, Western Mexico for Rapid Generation of Silicic Melt by Partial Melting of Granitoid and not by Segregation From a Long-Lived Crystal-Rich Mush, Eos Trans. AGU, 88 (52)