Stewart R. Wallace — 1919–2009 - Society of Economic Geologists

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STUDENT NEWS 30 SEG NEWSLETTER No 78 JULY 2009 efforts, and the economic and permitting requirements for mine start-up. The final evening was spent, as is traditional for these courses, at a group dinner. As we have noted to students in each course, it is very likely that they, at some point in the future, will encounter their fellow field course participants; so this dinner was not so much a “farewell” as a “see you again” fete. The course leaders are grateful to exploration veteran Jacob “Jake” Margolis, Exploration Manager for Redstar Gold Corporation, for his active and animated participation in this field course. Jake acted as the “third professor” and was very involved with prompting students to participate in discussions of the exploration criteria, economics, and geochemical characteristics of the ore deposits that make up this course. Jake, our many thanks to you for making the course much more interesting to both students and to the course leaders! As in the previous Student-Dedicated Field Course offerings, our hardhats are off once again to John Thoms of the SEG Foundation and Vicky Sternicki of SEG at the SEG headquarters office in Littleton, Colorado, for their efforts in assuring that preparations for this SEG Foundation field course went off without a hitch. As field course leaders, we appreciate their polished and professional behind-the-scenes work. Finally, we gratefully acknowledge the continued support of donors to the SEGF Student Field Trip Fund—this support and encouragement is indispensable for these field courses. In each of these courses, we have endeavored to keep � SOCIETY OF ECONOMIC GEOLOGISTS FOUNDATION (continued) � students excited about mining geology and minerals exploration by providing opportunities to keep them “looking at the rocks.” The next SEGF Student-Dedicated Field Course is being planned for October 2010, as a part of the SEG biennial conference in Keystone, Colorado; details will be announced when available! 1 Participants gather in front of a type-locality outcrop for the Golconda thrust fault, Phoenix mine site. Back (L–R) Edward Lynch (National Univ of Ireland, Galway), Jennifer Leigh Manion (Washington State Univ), Angela Marshall (Univ of Wollongong), Taryn Gray (Saint Mary’s Univ), Nicolas Rodolfo Jovic (Univ Nacional de la Plata), Laura Malone (Univ of New Brunswick), Luis A. Parra (Southern Illinois Univ, Venezuela), Martin Griessmann (Univ of Adelaide, Austria), Fred Breit (Newmont), Gabriel Sweet (Lakehead Univ), Helen Cocker (Univ of Auckland), Erich U. Petersen (Univ of Utah) Front: Lisa Davenport (Newmont), Friederike Minz (Tech Univ Freiberg, Clausthal), Vivian Ruiz Mendoza (Univ de Sonora, Hermosillo), Cristian F. Puentes Alfonso (Univ Nacional de Colombia), William X. Chávez (New Mexico Tech), Jesus M.Velador (New Mexico Inst Tech, Mexico), Guillaume Lesage (Univ of Alberta), Abhidheya Wright-Holfeld (INR-SETE), Not pictured L. Page Anderson (Univ of Utah) PAID ADVERTISEMENT PAID ADVERTISEMENT
JULY 2009 No 78 SEG NEWSLETTER 31 Stewart R. Wallace (SEG 1961, SF1991), a highly regarded, world-renowned authority on molyb - denum deposits, discoverer of the Ceresco Ridge orebody at Climax and the Henderson mine in Colorado, and the Anonymous Donor who provided 100 percent of the funding for the SEG Headquarters Building in Littleton, Colorado, died on March 12, 2009, at the age of 89, just a few weeks short of his 90 th birthday. Stewart was born March 31, 1919, in Freeport, New York, obtained a BA degree from Dartmouth College in 1941 and, after serving 4.5 years as a commissioned officer in the U.S. Army during World War II, received MSc and PhD degrees in 1948 and 1953, respectively, from the Univer - sity of Michigan. From 1948 to 1955 (part time 1950–1952, while pursuing graduate study at Michigan), he worked as a geologist in the Minerals Deposit Branch of the U.S. Geological Survey and participated in several western U.S. mining district mapping projects including the following: thorium and rare earth deposits in the Powderhorn district near Gunnison, Colorado; mineral zoning in the Front Range, Colorado; uranium deposits in the Powder River Basin, Wyoming, and the alkaline complex of the Judith Moun - tains, Montana. The last was the subject of his PhD thesis. His work with the USGS resulted in seven publications. In 1955, he left the Survey to join Climax Molybdenum Company at the recommendation of John W. Vanderwilt (SEG 1930, then Climax consulting geologist and president of Colorado School of Mines). From 1955 to 1957, he was “Resident Geologist” and embarked on a detailed study of the complex geology of the Climax ore deposit and, in the pro - cess, greatly clarified ore deposition controls. This work resulted in his first publication on “Climax-type” ore deposits. 1 In 1958, he was promoted to Chief Geologist and then Chief of Geology and Explora - tion, until 1969. During this period, he and his team of geologists continued the 1 Wallace, S.R., Jonson, D.C., Navias, R.A., and Skapinsky, S.A., 1957, Ring fracture intrusion and mineralization at Cli - max, Colorado: a preliminary report: Geol. Soc. America Bull., v. 68, p. 1809–1810. Reprint from the SEG Newsletter, April 2009, Number 77, page 5. STEWART R. WALLACE — 1919 – 2009 SEG’S Anonymous Donor “. . . there absolutely should be some ‘center’ from which the Society functions—preferably in one place and permanent.” —Stewart R. Wallace, July 1994 detailed study of Climax geology that re - sulted in the discovery of large tonnages of new ore, including the spectacular discovery of the Ceresco orebody and its deep offset portion at more than 10,000 feet below surface across a major fault. This detailed geologic work led to the development of a multiple-intrusion model to describe the complex magmatic and hydro thermal events that produced the Climax orebody, and was key to the prediction and discovery of the world-class Henderson orebody at Red Mountain, near Empire, Colorado. Stewart was also renowned for his ability to work closely with mine engineers and mine management and was particularly successful in the application of geology to mining and exploration. Detailed geologic mine mapping and related studies carried out under his leadership greatly facilitated engineering operations at the Climax and Henderson mines. In 1969, he left Climax to form Mine Finders, Inc., an exploration consulting firm based in Lakewood, Colorado, for which he served as President and Director of Exploration. Under an agreement with Bethlehem Steel Corporation, Mine Finders conducted minerals exploration in western North America and elsewhere. Follow ing conclusion of that agreement and dissolution of Mine Finders in 1976, he continued working as an exploration consultant whose recognized expertise on porphyry molybdenum deposits was highly sought after by major international mining corporations. Stewart was a Distinguished Member of the Society of Mining Engineers (SME), a Fellow of the Geological Society of America, and a member of a number of other professional-scientific associations. In 1974, SME honored him with one of its highest awards, the prestigious Daniel C. Jackling Award, primarily in recognition of the discovery of the Henderson orebody. In 2001, he was inducted into the National Mining Hall of Fame in Lead - ville, Colorado, together with six legendary North American mining industry figures. Within the Society of Economic Geologists, Stewart will be remembered for his enthusiastic service, interest in all aspects of SEG, concern for its welfare, and his legacy of the SEG Headquarters Building. He served on various SEG committees, including the Nominating Com - mittee, which he chaired, and was a member of the Council, 1973–1975, Vice President in 1978, and President in 1992. For the SEG Foundation, he served five years as a Trustee. His vision for SEG as stated in July 1994 was that, “. . . there absolutely should be some ‘center’ from which the Society functions—preferably in one place and permanent.” On February 2, 1996, Stewart made the first of several contributions to the Society to establish a “permanent” headquarters in the Denver area. All together, those contributions totaled in excess of $5 million and funded the purchase of a building site, design, construction, and furnishing (including then “state of the art” computer equipment) of the headquarters building, and an endowment of over $1.5 million to cover the operating and maintenance costs of the building—a complete package. He was directly involved in the site selection for the building and its design. Completed in early 2000, the building serves as the international headquarters for both the Society and the Foundation, and houses the publishing activities of the former Economic Geology Publishing Company. All this was undertaken with strict instructions from Stewart that his contributions would be “absolutely undisclosed” until his death. Stewart’s farsighted action is greatly benefiting the Society and its members, as it also will future generations of economic geologists. Stewart was a life-long avid sailor and sailed on numerous bodies of water on three continents. He was preceded in death by his brother, Henry, of Cortez, Florida, and is survived by son, William, of Lakewood, Colorado, and daughter, Margaret, of Oley, Pennsylvania. 1
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Stewart R. Wallace — 1919–2009 - Society of Economic Geologists

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