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Spencer Rowe Titley


1997 Medal of Merit Recipient

Dr. Spencer Titley was born September 27, 1928, in Denver, Colorado. He was raised there, graduated from East High in 1946, and spent the summers of 1947 and 1948 as underground miner for Front Range Mines. He joined New Jersey Zinc at Gilman, Colorado, as a Junior Geologist.

After serving in the Korean War, he returned to Gilman as a Staff Geologist until 1955, when he began graduate work at the University of Arizona, earning his Ph.D. in 1958. From 1958 to 1960, he continued as Regional Exploration Geologist for New Jersey Zinc in Arizona and New Mexico. In 1960, he joined the University of Arizona faculty as Assistant Professor, progressing to present Full Professor in Geology and Geosciences.

Dr. Titley, besides being a licensed commercial pilot, is a prolific writer, prodigious scholar, prized consultant and teacher. The list of accomplished students, clients, grants, awards and honors, reflect on his stature as a world authority of porphyry copper systems, metal provinces and metallogenesis. Titley is a geologist's geologist, a student's teacher, and a client’s consultant.


Dr. Titley passed away in Tucson, Arizona on 18 August 2019 at age 90.

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P. O. Box 42317

Tucson, Arizona  85733

Phone - (520) 577-7519


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