Field observations play a significant role in defining and addressing many of the petrological and volcanological problems in which I am interested. Field work is also fun and a major reason for doing Earth science. Here are a few pictures from some recent trips. Below are links to other excursions.
EPS 104 Field Trip. Math Students get serious about magma mixing in the Sierras!
Island Lake, Desolation Wilderness Granite/Basalt; Island Lake, Desolation Wilderness
Island Lake, Desolation Wilderness Tanaya Lake, Tuolomne Meadows
New Zealand, 2002
Hot mud, Rotorua
White Island
Tarawera Volcano
White Island
Vinalhaven, Maine 2004: Basalt/granite interactions with David Hawkins and Bob Wiebe

Montserrat, 2005: A look at the 1995 eruption and one that started while I was there with Helge Gonnermann!

New Zealand, 2006: Sampling Mount Tarawera and other volcanoes with Kari Cooper and Ben Kennedy

Coastal Maine, 2007: Basalt/granite interactions with Bob Wiebe, Ben Kennedy and my grad students Amelia Bain and Kirsten Hodge