Skip to Main Content


Collage of research

Basically, I am a geochemist who wears two very different hats:
Tectonics: My graduate research (c. 1990) was exclusively on metamorphic rocks, and I maintain an active research program investigating tectonics via the geochemistry and geochronology of metamorphic minerals. Projects have included the northern and southern Appalachians, Himalaya, southern Andes, etc. If I differ from other “metamorphic tectonicists” it is that I continually develop and apply new geochemical techniques for investigating orogenesis, so there are a lot of geochemical methods and models embodied in my studies.

Paleoclimatology/Paleontology: My other main research interest is in vertebrate paleontology, paleoecology and paleoclimatology. This started with oxygen isotope analysis of modern teeth (c. 1995) and of fossil teeth as monitors of mountain range uplift (c. 2000). A variety of other projects ensued, including rates of fossilization, atmospheric/ocean circulation, and even a bit of biochronology. Places I’ve worked include central/eastern Oregon, southern Argentina, and northwest Nebraska. I suppose I can be distinguished from other paleoclimatologists based on my analysis of vertebrate fossils, and from paleontologists based on my reliance on geochemistry.

See links to the left for more details.