Baylor University
Department of Geosciences
College of Arts and Sciences

Dr. Don Parker

Contact Information
Dr. Don Parker
Department of Geology
Baylor University
One Bear Place #97354
Waco TX 76798

Phone (254) 710-2192
Fax (254) 710-2673

Room E424, Baylor Sciences Building



• Igneous Petrology

• Volcanology

• Magnatism and Tectonics


Ph. D., University of Texas at Austin

Fellow, Geological Society of America

Research and Teaching Interests

Dr. Parker's interest in volcanology and igneous petrology originated during visits to Big Bend National Park and the Davis Mountains of West Texas while he was a teenager. He has followed this interest for more than twenty years, chiefly focusing his research upon major and trace element geochemistry of silicic systems. Dr. Parker believes that integrated studies of volcanic systems, involving both field and laboratory analysis, provide the best approach to solution of problems associated with these systems. Consequently, mapping of volcanic terranes and volcanologic analysis are as important as chemical and isotopic studies in Baylor student projects.

Long-term areas of research at Baylor include the evolution and eruptive behaviors of silicic alkalic systems, origin of extensive silicic lavas and rheomorphic tuffs, and origin of dacite and rhyolite in calcalkalic suites. Specific problems that have been investigated include the origin of pantellerite from Pantelleria, Italy and the Davis Mountains, West Texas, the origin of rhyolite in the Conejos Formation of the San Juan Volcanic Field, Colorado, and the petrogenesis of Oregon Coastal Basalts. Current projects include the study of South Sister Volcano in the central Oregon Cascades, petrogeneisis of metaluminous rhyolite in the Davis Mountains of West Texas,and comendite from Big Bend National Park, and the puzzling presence of subduction trace element characteristics in rocks of the Rio Grande Rift.

Dr. Parker teaches advanced courses in Igneous Petrology, Analytical Geochemistry, and Volcanology, as well as undergraduate Petrology and introductory geology classes.

Parker Mountains

Selected Publications

White, J.C. Parker, D.F., and Ren, M., 2009, The origin of trachyte and pantelleritie from Pantelleriia, Italy: Insights from thermodynamic modeling: Journal of Volcanology and Geothermal Research, v. 179, p. 33-55.

Parker, D.F., and White, J.C., 2008, Large-scale alkalic magmatism associated with the Buckhorn caldera, Trans-Pecos Texas, U.S.A.: Comparison with Pantelleria, Italy: Bulletin of Volcanology, v. 70, p. 403-415.

White, J.C., Ren, M., and Parker, D.F., 2005, Variation in mineralogy, temperature, and oxygen fugacity in a suite of strongly peralkaline lavas and tuffs, Pantelleria, Italy: The Canadian Mineralogist, v. 43, p. 1331-1347.

Parker, D.F., Ghosh, A., Price, C.W., Rinard, B.D., Cullers, R.L., and Ren. M., 2005, Origin of rhyolite by crustal melting and the nature of parental magmas in the Oligocene Conejos Formation, east-central San Juan Mountains, Colorado, U.S.A.: Journal of Volcanology and Geothermal Research, v. 139, p. 185-210.

Ren, M., Parker, D.F., and White, J.C., 2003., Empirical models for trace element partitioning of Sr, Ba, Rb, Y and LREE between feldspar and peraluminous magma: part II plagioclase: American Mineralogist, v. 88, p. 1091-1103.

White, J.C., Holt, G.S., Parker, D.F., and Ren, M., 2003, Trace-element partitioning between alkali feldspar and peralkalic quartz trachyte to rhyolite magma, part I: Systematics of trace-element partitioning: In press, American Mineralogist.

Parker, D.F., 2002, Horseshoe Canyon Volcanic Dome, Stop 5 in White, John C., ed., The Geology of Big Bend National Park: What have we learned since Maxwell and others (1967)?: Field Trip Guide for South-Central Geological Society of America Meeting, Alpine, Texas, p.24-32.

Parker, D.F., Barker, D.S., Holt, G.S., and White, J.C., 2000, Peralkalic rhyolite of the Davis Mountains and Big Bend areas, Texas: Guidebook for the South-Central Geological Society of America Meeting, 45 p.

Cameron, K.L., Parker, D.F., and Sampson, D.E., 1996, Testing crustal models for the origin of flood rhyolites: a Nd-Pb-Sr isotopic study of the Tertiary Davis Mountains volcanic field, west Texas: Journal of Geophysical Research, v. 101, p. 20407-20422.

Henry, C. D., Price, J. G., Parker, D. F., and Wolff, J. A., 1989, Mid-Tertiary silicic alkalic magmatism of Trans-Pecos Texas: Rheomorphic tuffs and silicic lavas, in Chapin, C.E., and Zidek, J., eds., Field excursions to volcanic terranes in the western United States, Volume I: Southern Rocky Mountain region: New Mexico Bureau of Mines and Mineral Resources Memoir 46, p. 231-274.