Ballot for 2022 SEG Officers

We are pleased to announce candidates for the 2022 SEG Officers. Please take a moment to learn about each individual and vote today.

Deadline: August, 31, 2021

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Candidate for President-Elect (2022)

Stuart Simmons

(SEG Fellow since 1985)

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Stuart is a consulting geologist (Hot Solutions Ltd., New Zealand) and a research professor (University of Utah, USA), and he is primarily known for his work on epithermal deposits, modern hydrothermal systems, and geothermal resources. After completing a B.A. degree in geology (Macalester), he worked as a mud logger for nine months, then abandoned that to pursue graduate geology degrees at the University Minnesota. For his Ph.D. degree, he studied the giant silver district in Fresnillo, Mexico, under the guidance of Sam Sawkins and then moved to the University of Auckland, where during a postdoc and a subsequent 20-year academic post, he honed his knowledge of the controls on alteration and mineralization through studies of numerous epithermal deposits and, most importantly, the hydrothermal activity of the Taupo Volcanic Zone. He has been affiliated with the Energy and Geosciences Institute (EGI), University of Utah, since 2013.

Stuart has served the SEG across a range of roles, including Student Affairs Committee (1999–2002), Vice President (2004–2006), Publications Board (2004–2016; Chair, 2007–2011), and Editorial Board of Economic Geology (2001–2018), and he has given a number of short courses with colleagues on gold and epithermal mineralization as well as led several SEG field trips through the North Island of New Zealand. In 2014, he was awarded the SEG Silver Medal, and in 2018, the Ralph W. Marsden Medal.

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Candidate for Councilor (2022-2024)

Zhaoshan Chang

(SEG Fellow since 2009)

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Zhaoshan Chang was born and raised in flat farmland in the Northern China Plain but always wanted to be in the mountains. His university training began in 1988, when he was admitted to the Department of Geology at Peking University, China. With subsequent Ph.D. degrees from Peking University, China (1997), and Washington State University, USA (2003), Zhaoshan eventually worked his way to a current position as the Charles Fogarty Endowed Chair and Professor in Economic Geology at Colorado School of Mines (CSM). He previously taught and conducted research at Peking University, China (1997–2000); Washington State University, USA (2004); CODES, University of Tasmania, Australia (2004–2011), and the EGRU (Economic Geology Research Centre), James Cook University, Australia (2011–2018). He was the director of EGRU from 2012 to 2018 before joining CSM. Zhaoshan has studied a wide spectrum of deposit types in 18 countries on various continents, including skarn, porphyry, epithermal, W-Sn greisen/pegmatite, iron oxide copper-gold, and orogenic gold. He works closely with the mineral industry on exploration-oriented research projects, looking for far-field signals, discriminators, and zoning patterns in mineralogy, textures, spectral features, whole-rock and mineral geochemistry, and isotopic compositions that can be directly used in exploration. He also studies ore-forming processes and ore-controlling factors, magma fertility indicators, regional metallogenesis, and the application of laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) techniques in mineral exploration and geologic research (mineral trace element analysis and mapping, geochronology, isotope geochemistry). His research mainly involves field investigation and drill core logging, petrography, short-wave infrared spectral analysis, whole-rock and mineral chemistry, textural imaging using various techniques (LA-ICP-MS, PIXE, CL, BSE, microprobe), geochronology, fluid inclusion thermometry and compositional studies, and isotope geochemistry (O-H-S-C; Cu-Zn-Fe; Sr; Pb). He runs an LA-ICP-MS/MS lab and the Professional Master in Mineral Exploration Program at CSM. He has authored or coauthored ~100 publications, chaired/organized several international conferences, and delivered numerous presentations, including 60 invited and keynote presentations at conferences, institutions, and mine/exploration sites. He has taught 45 professional development short courses with ~3,500 participants and has led many field trips.

Zhaoshan has served for SEG, the Society for Geology Applied to Mineral Deposits, the International Association on the Genesis of Ore Deposits, the Australasian Institute of Mining and Metallurgy, and other professional organizations. For SEG, he is currently an Associate Editor of Economic Geology and an SEG Mentor (2018-present). Previously, he was an SEG International Exchange Lecturer (2020); served on the Publications Board (2012–2018), Committee on Committees (2012), Nominating Committee (2013, 2019), International Exchange Lecturer Sub-Committee (2015–2017; Chair, 2017); and was on the organizing committees for the SEG 2015 and 2017 conferences. He was also a co-editor of SEG Special Publication 22 (2019) and a guest editor of a Special Issue of Economic Geology (2011).

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Candidate for Councilor (2022-2024)

Mary Little

(SEG Fellow since 1992)

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Mary grew up in northern Virginia and knew early that she wanted to be a scientist, especially as a student during a time of aerospace and space exploration. She majored in Geology at Franklin and Marshall College, completed an M.Sc. degree in earth sciences at the University of California, Santa Cruz, and later, an MBA degree from the University of Colorado. She credits Marco Einaudi of Stanford University for pivoting her to a passion for ore deposits. Mary’s career in minerals exploration began with Anaconda Minerals for porphyry copper and moly exploration, detailed mapping at Los Pelambres, Chile, and Anaconda’s exploration research group for Precambrian-hosted gold. Later she pursued the “business” of economic geology as an internal analyst for Echo Bay Mines, returning to Latin America for 15 years in Ecuador, Chile, and Peru with Newmont Exploration, Cyprus Amax Minerals, and Western Mining Corporation (WMC Ltd).

In 2003 she became the founding CEO and president of Mirasol Resources Ltd., a prospect-generator company exploring in Chile and Argentina. Over 11 years, Mirasol made two significant silver discoveries in Argentina and was named to the top 100 TSX Venture Exchange companies in 2010. She has served on the SEG Fellowship Admissions Committee, as a past trustee and chair of the SEG Foundation Nominating Committee (2010–2014), and as chair of SEG’s Committee on Committees (2019). She wrote the Exploration Reviews for South America for the SEG Newsletter from 1993 to 1995 and co-authored “Precious and Base Metal Deposits in Argentina” (1993) for the SEG Newsletter. Mary is industry advisor for the Colorado School of Mines SEG Student Chapter, is a past president of Denver Region Exploration Geologists’ Society, consults and serves on the boards of several public natural resource companies.

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Candidate for Councilor (2022-2024)

César Vidal

(SEG Fellow since 1992)

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If you browse cesarevidal.com you will find this candidate is a Peruvian geologic engineer, who managed to graduate with a Ph.D. degree from Liverpool University with work on Andean granite-related metallogenesis. You can follow in detail his 40-year-long career evidenced by a prolific number of published papers and by several new orebodies discovered as a consequence of previous geologic research followed by perseverant drilling and/or tunneling. Thirty out of 40 years were dedicated to work for R.A.F. Penrose Gold Medalist Alberto Benavides in Compañía de Minas Buenaventura SAA; Alberto mentored César's entire career from junior mine geologist to vice president of exploration.

What remains unsaid is that César is now undergoing a reinvention, after retirement in 2014 at age 60.

César and Lito, his older brother, bought a piece of land in the Urubamba Valley in Cuzco, and they built a house so that they could plow the arable land around it. Their new home is now in full production with a recent record quinoa harvest of 900 kg from 0.3 ha. Tens of kilos of avocado, apples, and pears also fill their buckets and provide organic food for their families and friends.

At the same time, César and colleagues from the local universities have mapped in detail the geologic and archeological foundation of the Cachiccata community where he lives. Three graduate students are completing their mapping and sampling to assess structure, lithology, and hydrology. A summary report with 12 maps at 1:10,000 scale with several cross sections were presented last year to the local and regional authorities to prioritize specific archeological studies and construction of riverbank defenses and to better exploit groundwater resources.

Coincidently with César's retirement in 2014, he was incorporated in the Academia Nacional de Ciencias of Peru, where he has served for three years as treasurer. He has coauthored a couple papers on water in the Americas with IANAS. César has also worked for two years in Peru’s geological survey, INGEMMET, and currently collaborates as a board member in BISA Ingenieria de Proyectos, an engineering service company.

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