• Ph.D., Earth Sciences, 1992, U.C. Santa Cruz
• B.S., Geology, 1982, Humboldt State University

• Ph.D., Geology, 2005, University of Alaska, Fairbanks
• M.S., Geology, 2001, University of Alaska, Fairbanks
• B.S., Geology, 1998, Oregon State University
• B.S., Environmental Science, 1998, Oregon State University

GEOL 109/109L: General Geology

GEOL 300/300L: California Geology

GEOL 303: Environmental Geology

GEOL 312: Earth Materials (Mineralogy + Lithology)

GEOL 314: Petrology

GEOL 380: Advanced Petrology

GEOL 474: Volcanology

GEOL 435: Geologic Field Methods II

GEOL 475: Summer Geology Field Camp

GEOL 482: Instrumental Methods in Geology (Scanning Electron Microscopy)

GEOL 486: Geology Senior Seminar

GEOL 554: Advanced Geology Field Methods

My research combines field geology, thin section petrography, whole-rock geochemistry, and crystal chemistry to investigate volcanic hazards and better understand what makes volcanoes turn on and off. My favorite kind of research projects blend field work that examines the volume, extent, and manner in which magma was erupted through geologic mapping and stratigraphy, and lab work that characterizes the behaviors and evolution of magma systems through whole-rock geochemistry via x-ray fluorescence and crystal chemistry via electron microscopy. I am also starting to incorporate geochronology techniques like cosmogenic dating of Quaternary volcanic surfaces in my research. My current research projects involving undergraduate and graduate students are based at volcanoes in northern California, like Mount Shasta, the Lassen Volcanic Center, and Medicine Lake Volcano, as well as volcanoes in eastern California, like those near Mono Lake and in the Golden Trout Wilderness of the Sierra Nevada. 

• Ph.D, Geology, University of California, Berkeley, 1982
• A.B., Geology, University of California, Berkeley, 1967

• Ph.D., Geology, University of Kansas, 1961
• M. Sc, Geology, University of Nebraska, 1955
• B. A., Geology, University of Saskatchewan, 1953

• B.S. Oceanography with emphasis in marine geology (HSU ‘10)
• M.S. Environmental Systems - Geology with a focus on tsunami currents and coastal hazards (HSU ‘13)

GEOL 103 The Water Planet

GEOL 106 Earthquake Country (online sections and face-to-face sections)

GEOL 303 - Earth's Resources and Global Environmental Change

GEOL 308/308L Natural Disasters

GEOL 465 Geoscience Capstone

GEOL 486 - Geology Research Methods

GEOL 700 Finding Faults in Humboldt County

Stars to Rocks - Summer Immersion

Current Projects & Research:

• Study tsunamis and the currents they produce in our local harbors using ADCPs (current profilers)
• Work with Harbor District, NOAA, & Chevron on PORTS project
• Outreach with communities to increase earthquake & tsunami education and awareness

• Ph.D., Earth & Planetary Sciences, University of California - Santa Cruz, 2013
• M.S., Earth & Planetary Sciences, University of California - Santa Cruz, 2009
• B.S., Environmental Earth Science, Massachusetts Institute of Technology, 2006

GEOL 100 - Stars to Rocks

GEOL 106 - Earthquake Country

GEOL 109 - General Geology

GEOL 110 - Geology of the Western US

GEOL 303 - Earth Resources and Environmental Global Change

GEOL 306 - General Geomorphology

GEOL 334 - Structural Geology

GEOL 335 - Field Methods I

GEOL 475 - Summer Field Camp Capstone

GEOL 486 - Research Methods

GEOL 524 - Methods in Geochronology

GEOL 700 - Finding Faults