Specialties: Archaeological geochemistry, lithic technology, North American Southwest, x-ray fluorescence spectrometry
Now living in New Mexico where I spent over 30 years in the field, I continue research in archaeological chemistry in my x-ray fluorescence spectrometry (XRF) laboratory (http://www.swxrflab.net/). I also serve as an Adjunct Professor in the Department of Anthropology, the University of New Mexico collaborating with various faculty in archaeology and serving on Masters and Ph.D. committees in both Anthropology and Earth and Planetary Science.
I run and maintain an active x-ray fluorescence spectrometry lab in New Mexico for the analysis of geological and archaeological samples, a continuation of the lab I ran at Berkeley for 20 years with National Science Foundation funding. I collaborate with scholars worldwide, but especially in the North American Southwest, and continue as an Adjunct Professor at the University of New Mexico. One publication in press is a long-term study of the secondary deposit obsidian in the Rio Grande Quaternary alluvium from work during my Field Practice in Archaeological Petrology held during the 2000s in New Mexico. This material was used for over 13,000 years by Southwestern groups for stone tool production. Continue XRF analyses for private cultural resource management firms, and federal agencies in the Southwest, as well as colleagues in northwest Mexico. Co-editing a volume for Springer Nature entitled "Sourcing Obsidian: A State-of-the-Art in the Framework of Archaeological Research" with François-Xavier Le Bourdonnec of the Université Bordeaux Montaigne, France and Dr. Marie Orange of the University of New England, Australia.
