CIRES Council of Fellows>

G. Lang Farmer

Ph.D., University of California, Los Angeles, 1983
Professor, Geological Sciences

E-mail: farmer@cires.colorado.edu
Office: ESCI (Benson) 422A
Phone: 303-492-6534
Web: Prof. Farmer (Dept. of Geological Sciences)

Research Interests

Application of radiogenic isotope systematics to earth sciences.

Current Projects

My current projects involve investigations of the generation of basaltic magmas beneath continents, the formation of Earth's lower continental crust, the volcanic evolution of the western U.S., the development of igneous rock databases as part of NSF-Geoinformatics initiative, and the determination of the provenance of Precambrian sediments in western North America.

Selected Publications

• Verplanck, P. L., Farmer, G. L., McCurry, M., and S. Mertzman, "The chemical and isotopic differentiation of an epizonal magma body: Organ Needle pluton, New Mexico, Journal of Petrology, 40, 653-678. 1999.
• Alenikoff, J. N., Farmer, G. L., Rye, R. O.,and Nokelberg, W. J., "Isotopic evidence for the sources of Cretaceous and Tertiary granitic rocks, east-central Alaska: Implications for the tectonic evolution of the Yukon-Tanana terrane", Can. J. Earth Sci., 37, 945-956, 2000.
• Manley, C. R., Glazner, A. F., Farmer, G. L., Timing of volcanism in the Sierra Nevada of California: Evidence for Pliocene delamination of the batholithic root?, Geology, 28, 811-814, 2000.
• Farmer, G. L., Espinoza, G., Morales, M., Martin, M. W., and S. A. Bowring, Nd isotope constraints on sources of Neoproterozoic to Early Cambrian siliciclastic sedimentary rocks in northern Sonora , J. South Am. Earth Sci, 14, 437-446, 2001.
• Farmer, G. L., Glazner, A. F., and C. R. Manley, Did lithospheric delamination trigger Late Cenozoic potassic volcanism in the southern Sierra Nevada, California?, Geol. Soc. Amer. Bull., 114, 754-768, 2002.

Farmer is also one of the CIRES Faculty who teach at the University of Colorado at Boulder with teaching loads equivalent to those of CU faculty rostered solely in departments and programs.