IN MEMORIAM
to work together for many years through AIPG on educational affairs, professional development, continuing education, and as a team of visiting geosciences program reviewers.
All professors instill content knowledge and skills in their students. However, Bob, like no one else I knew, commu- nicated the meaning of “professional” to countless geology students who benefitted from his supportive guidance. His love for teaching geology extended to the general public, and he worked for years and led conferences on the thematic use of public lands as resources for education.
He leaves hundreds of students whom he taught, and many grateful faculty and professional geologists who benefitted from his mentorship.
Dr. Keith R. Long, MEM-0795 Marana, Arizona
April 30, 1957 - March 29, 2019 Member Since 2005
Born to Walter A. Long and Edith Berridge in Wichita Falls, Texas, Keith grew up in Santa Clara, California and graduated from University of California Santa Cruz with a double major of a B.S. in Earth Sciences and a B.A. in Political Economy (1979). He com- pleted his M.S. in Geoscience at University of Michigan (1984), and his Ph.D. in Mineral Economics at The University of Arizona (1988). He married Kay Ellen Lindley in Tucson on October 2, 1999.
Keith joined the U.S. Geological Survey in Tucson in 1988, to work in the Center for Inter-American Mineral Resource Investigations where he participated in cooperative studies in Central and South America, especially Mexico and Bolivia. Keith devoted his career to studying mineral resources and specializing in the economic aspects of mineral resource assess- ment. The focus of his research in recent years included work on the economics of porphyry copper deposits, economic filters for evaluating mineral deposits, the environmental aspects of historical mine tailings, and characterization of rare earth element deposits and significant metal deposits of the U.S. He wrote over 100 publications ranging from country-specific studies of the mineral resources of Bolivia and the United States to work identifying and classifying abandoned mines in California (upcoming). Keith also published an English- Spanish dictionary of mining and geologic terms. He ended his career as a Research Specialist in rare earth minerals. He was active in professional societies including the Society of Economic Geologists, Arizona Geological Society, the Mining History Association, and the International Assoc. of Mathematical Geologists where he served as Editor for Natural Resources Journal. He presented numerous, well-researched talks on minerals and mining history. Keith was an intelligent, thoughtful, kind, godly person with a quiet sense of humor. An avid reader, he was interested the natural sciences, his- tory (especially world history, technology, military, mining, Biblical archaeology). He was respected and endeared by his colleagues and friends.
Keith is survived by wife, Kay; his father, sisters, Suzanne Long Huntington (Steve) of San Jose and Karin Long Schubert (Alex) of Granite Canyon, Wyo.; brother, Walter Scott Long (Maria) of Fremont, Calif. Memorial donations in Keith’s name may be made to Tucson Gospel Rescue Mission or the Mining History Association.
Dr. Spencer Titley, CPG-9152 Tucson, Arizona
September 27, 1928 - August 18, 2019 Member Since 1994
Dr. Spencer Titley, CPG-9152, a member of the Arizona Section of the American Institute of Professional Geologists (AIPG) passed away on August 18, 2019.
The following tribute is from the Arizona Geological Society (AGS):
“Dr. Spencer R. Titley passed away in Tucson on Sunday morning, August 18, 2019.
Spencer Titley was born September 27, 1928, in Denver, Colorado, where he grew up and graduated from East High in 1946. His first taste of the future was spent working as an underground miner at Cripple Creek and Idaho Springs during the summers of 1947 and 1948. Spence earned an undergradu- ate degree in Geological Engineering from the Colorado School of Mines in 1951.
After serving in the Korean War, he returned to Gilman, Colorado in 1953, where he worked as a Staff Geologist for the New Jersey Zinc Company until 1955, when he began gradu- ate work at The University of Arizona, earning his Ph.D. in Geology and Chemistry in 1958. From 1958 to 1960, he con- tinued as Regional Exploration Geologist for New Jersey Zinc in Arizona and New Mexico. Spence joined The University of Arizona faculty as an Assistant Professor in 1960, progressing to Professor of Geosciences Emeritus.
Besides being a licensed commercial pilot, Spence was a pro- lific writer, prodigious scholar, prized consultant and teacher. His 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.
A lifetime member of the Arizona Geological Society, Spence served as AGS President in 1974-75 and its Vice President of Field Trips in 1973-74. He was also a co-editor of the 2008 AGS Ores and Orogenesis Digest.
Dr. Titley was a true gentleman, a geologist’s geologist, a student’s teacher, and a client’s consultant. He had a lasting impact on his students and the field of economic geology.”
Your Editor would like to add that “The Geology of the Porphyry Copper Deposits: Southwestern North America” edited by Spence Titley and Carol Hicks and published in 1966, was his constant companion for several years, as it was the bible for all those involved in exploration for porphyry deposits in the late 1960s and 1970s.
Jackie Stephens, CPG-06832, writes: …….It was so easy to chat with Spence, as he seemed to be the most-friendly of all the Geo-Profs, and of course the Porphyry Copper Volume edited by Titley & Hicks was the Bible for all us young guys & girls, and the world.
He was a very intense professor of geology, but so human personally. He seemed to always have time for young geos, and was a good listener. He was one of the top Geos that I ever studied under, and the most interesting geologist friend that I have ever had, during my studies of geology or the +50 years since I was a student at the U. of A.
He was a pro at relating his technical learning to real life Economic Mineral development. He was a great man, and a friend that I will never forget. God Bless his soul.
Continued on p. 61
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