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Dr. Wendy A. Bohrson
Ph.D. 1993, University of California at
Los Angeles
Associate Professor
Department of Geological Sciences, Central Washington
University
Ellensburg, WA 98926-7418
office:509. 963-2835
fax:509.963-2821
bohrson@geology.cwu.edu
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Research
Current Interests and Projects:
Wendy integrates investigations of the physics and chemistry
of magmas to understand how magma bodies evolve and the eruptive
dynamics of volcanoes. By combining field, analytical, and
theoretical modeling studies, she documents the changes in magma
properties as melts rise from their mantle source regions (~100
km depth) to Earth's surface.
An important component of her research is documentation of the
chemical and physical changes that magmas experience while stored
in a magma plumbing system and en route to the surface. One
approach that Bohrson uses to better understand how magma bodies
evolve is to integrate crystal size distribution analysis,
Nomarski imaging, electron microprobe analysis and laser ablation
studies. Current projects include studies at Mt. Etna, Stromboli,
Arenal, Mt. Lassen and Mt. St. Helens.
Additional studies involve development and use of the
computational code Energy-Constrained Eruption, Recharge,
Assimilation and Fractional Crystallization (EC-ERAFC) to
document the evolution of magma bodies as they undergo
open-system processes. More information about EC-ERAFC can be
found in the list of publications, and by emailing Bohrson.
Background
Bohrson received her Ph.D. from UCLA in 1993. From 1994-1998,
she held a University of California Office of the President
Postdoctoral Fellowship and a National Science Foundation
Postdoctoral Fellowship, and was employed in the Department of
Geological Sciences at the University of California, Santa
Barbara as a researcher and lecturer.
At Central Washington University, Bohrson has been the
Director of the Office of Undergraduate Research (2000-2003), and
the Interim Director of Unviersity Research (2002-2003). She is
currently the Director of the CWU Science Talent Expansion
Program.
Selected Publications
•Spera FJ and Bohrson WA, 2004, (INVITED), Open-System
Magma Chamber Evolution: an Energy-Constrained Geochemical Model
Incorporating the Effects of Concurrent Eruption, Recharge,
Variable Assimilation and Fractional Crystallization (EC-E
RAÇFC), Journal of Petrology 45:2459-2480.
•Fowler SJ, Bohrson WA, Spera FJ, 2004, Magmatic Evolution
of the Skye Igneous Center, Western Scotland, Special Issue,
Journal of Petrology 45: 2481-2505.
•Bohrson WA and Spera FJ, 2003, (INVITED),
Energy-Constrained Open-System Magmatic Processes IV:
Geochemical, Thermal and Mass Consequences of Energy-Constrained
Recharge, Assimilation and Fractional Crystallization (EC-RAFC),
Geochemistry, Geophysics, Geosystems (G3) 4: doi:
10.1029/2002GC00316.
•Spera FJ and Bohrson WA, 2002, (INVITED),
Energy-Constrained Open-System Magmatic Processes III:
Energy-Constrained Recharge, Assimilation and Fractional
Crystallization (EC-RAFC), Geochemistry, Geophysics, Geosystems
(G3) 3: doi:10.1029/2002GC00315.
•Davis AS, Clague DA, Bohrson WA, Dalrymple GB, and Greene
HG, 2002, Seamounts at the Continental Margin of California: A
Different Kind of Oceanic Intra-Plate Volcanism, Geological
Society of America Bulletin 114: 316-333.
•De Vivo B, Rolandi G, Gans PB, Calvert A, Bohrson WA, Spera
FJ and Belkin H, 2001, New constraints on the pyroclastic
eruptive history of the Campanian volcanic Plain (Italy),
Mineralogy and Petrology 73: 47-65
•Bohrson WA and Spera FJ, 2001, Energy-Constrained
Open-System Magmatic Processes II: Application of
Energy-Constrained Assimilation Fractional Crystallization
(EC-AFC) Model to Magmatic Systems, Journal of Petrology 42:
1019-1041.
•Spera FJ and Bohrson WA, 2001, Energy-Constrained
Open-System Magmatic Processes I: General Model and
Energy-Constrained Assimilation and Fractional Crystallization
(EC-AFC) Formulation, Journal of Petrology 42:
999-1018.
Teaching
Undergraduate
Teaching Interests and 2004-2005 Schedule
Courses
Dr. Bohrson teaches undergraduate major course in Rocks and
Minerals, as well as upper-level undergraduate/graduate level
courses in Igneous Petrology, Volcanology, and Geochemistry. She
also teaches graduate classes in her discipline and contributes
to the core graduate classes, including research methods and
field goelogy of the Pacfic Northwest.
Fall, 2004
Winter, 2005
Spring, 2005
