Speakers listed here reflect the planned 2020 Symposium. We are currently updating for the 2022 program.

Richard J. Goldfarb

Eric Seedorff


John Prochnau

Elizabeth Miller

Moira Smith

Moira Smith

Chuck Thorman


Dr. Richard Sillitoe


Quinton Hennigh


Keith Meldahl


Joe Mazumdar

See all Speakers


Invited Speakers

Tom Anderson
Tom Anderson is a Professor Emeritus at the University of Pittsburgh. He has focused upon employing the combination of field mapping, structural analysis, and U-Pb geochronology to unravel orogenic processes along North American plate margins especially where disrupted by sets of major faults. He has worked extensively in Central America, (mainly Guatemala), Mexico, and within the Appalachian, Cordilleran, and Coast Ranges of North America. Currently he is attempting to relate regional structural processes to global plate interactions.

Antonio Arribas
Antonio Arribas has more than 30 years of professional experience, including research, higher education, and technical and managerial positions with industry. He is a geologist with expertise in economic geology and exploration, mineralogy, and geochemistry. Prior to UTEP he served as professor in the Faculty of International Resource Sciences at Akita University in Japan. In 1986, Dr. Arribas earned a Fulbright scholarship to attend the University of Michigan to conduct research on gold deposits in southeastern Spain. He received his doctoral degree from Michigan in 1992. Within industry, Dr. Arribas has held a variety of positions, including Exploration Manager for South America with Placer Dome Inc., Chief Geologist with Newmont Corp., and Vice President Geosciences with BHP Exploration. He is a currently a member of the Board of Directors of Auryn Resources Inc., a Vancouver-based junior exploration
company. Dr. Arribas is a member of numerous professional societies, including the National Association of Geoscience Teachers, Society of Resource Geology, Société Géologique aux Gites Minéraux, and the Society of Economic Geologists (SEG). He was President of SEG in 2013.

Jay Chapman
Jay Chapman received his B.S. in Geology at the College of William and Mary in Virginia, his M.S. at the University of Texas El Paso working on collisional tectonics in the St. Elias range in Alaska, and his Ph.D. at the University of Arizona working on intracontinental subduction and the tectonics of the Pamir Mountains in Tajikistan. Between his M.S. and Ph.D., he spent 5 years in the oil and gas industry in Oklahoma City, where he worked primarily on the Marathon fold and thrust belt and Mississippian carbonate play. Jay started as an assistant professor of tectonics at the University of Wyoming in 2018. His active research program is focused on orogenic magmatism and the tectonics of the southern U.S. Cordillera.

Joe Colgan
Joe received his B.A. in geology from Carleton College in 1998, moved to the west coast, and obtained his Ph.D. in geology from Stanford University in 2005. He joined the USGS in 2006, working first at the Menlo Park CA office and since 2014 at the Denver CO office. Joe studies magmatism and deformation of the earth’s crust, and how these processes influence the formation and distribution of natural resources and geologic hazards. This work involves geologic mapping at different scales, interpretation of subsurface and geophysical data, and laboratory analyses to determine the age and composition of rocks and minerals. He is an expert on the geology of the western United States Cordillera and has worked extensively on the Cenozoic tectonic and magmatic evolution of the northern Basin and Range Province.

Barry Devlin
Barry Devlin, M.Sc., P. Geo., has been Vice President of Exploration for Gold Resource Corporation (GRC) since January 2013. He has more than 35 years of professional experience in managerial phases of exploration and mine geology for domestic and international corporations. He has participated in discovery, acquisition and development of numerous mineral deposits including extensive experience in epithermal gold-silver systems. Prior to joining GRC, Mr. Devlin was Endeavour Silver Corporation’s Vice President Exploration. He also worked for Hecla Mining Company, holding positions of Manager of Generative Exploration and District Geologist at the Republic gold mine in Washington. His professional accreditation includes Member of the Engineers and Geoscientists British Columbia, Fellow of the Society of Economic Geologists and Member of the Geological Society of Nevada, Society for Mining, Metallurgy, and Exploration and Geological Association of Canada.

Steve Koehler
After earning a B.Sc. in geology from the University of Wisconsin River Falls (1990), and discovering a rare-metal pegmatite district in northern Wisconsin (1987-1990), Steve started what would evolve into a 30-year geology career on the Carlin and Cortez Trends of northern Nevada. During that time, Steve held senior and management level positions with teams responsible for initial gold discoveries at Leeville, Four Corners, Hardie Footwall Extension, Little Boulder Basin, Fence, and Pete Downdip – now Pete Bajo (Newmont); Cortez Hills (Placer Dome); Arch (Evolving Gold); North Dark Star and North Bullion (Gold Standard Ventures). Steve is an AIPG Certified Professional Geologist, a 2005 Thayer Lindsley Award recipient for the Cortez team discovery at Cortez Hills, an active GSN member, and co-founder of GFG Resources. In his spare time, Steve enjoys wildlife photography, working on the first natural history book dedicated to birds in Yellowstone National Park, hiking, skiing and living next to the Yellowstone supervolcano.

Paul Link
Paul K. Link has been with the Idaho State University Geology Department since 1980. In that time, he has supervised over 100 MS theses, and for 15 years directed the ISU Geology Field Camp. He is a Regional Sedimentary Geologist, working with students and colleagues in the Intermountain West. From 1983 to 1990 he worked part time for the U.S. Geological Survey on Mineral Assessments of the Wind River Mountains, Wyoming, and the Hailey and Idaho Falls 1:250,000 map sheets in central Idaho. He is co-author on the 2012 Idaho State Geologic Map. A primary area of study has been the Meso- and Neoproterozoic strata of Idaho and Utah, including the Belt, Uinta Mountain, and Windermere groups. Another focus has been the detrital zircon provenance record of Neogene strata in Idaho, related to development of the Snake River Plain and eastward migration of the Snake River drainage basin.

Allen McGrew
Allen McGrew has taught and pursued research in regional tectonics, hard rock petrology and structural geology at the University of Dayton since 1995. He was introduced to Nevada geology while completing a Masters thesis on the southern Snake Range under the direction of Elizabeth Miller at Stanford University, and he continued exploring metamorphic core complexes and Nevada Geology with a PhD thesis based in the northern East Humboldt Range mentored by Art Snoke at the University of Wyoming. After migrating for a time to explore the tectonic history of the Copper Mountains area and Jarbidge Wilderness Area, he has returned in recent years to the Ruby-East Humboldt core complex. Under his current NSF funded research with co-PIs James Metcalf (UC Boulder) and Carolyn Bruno Meisner (Great Basin College) he is currently building a comprehensive thermochronological database in order to develop a cooling and exhumation history for the Ruby Mountains – East Humboldt Range – Wood Hills metamorphic core complex. Over his career he has introduced over 20 undergraduate research collaborators to Nevada geology.

Paul Noland
Paul is a geologist with over 45 years of exploration experience. He has been involved with Nevada exploration since 1977, largely for gold.

In between prolonged stints as an independent consultant, Paul has held senior positions with Inspiration, Noranda, Independence, Placer Dome and Barrick. He is proud and lucky to have been involved directly with 5 significant discoveries in Nevada, Idaho and California.

Paul came out of semi-retirement to become VP Exploration of Fiore Gold in 2018.

Hans Rasmussen
Hans Rasmussen has been in his current role as Sr VP Exploration for Coeur Mining since 2013. He has over 35 years of experience in the mineral exploration business, 16 years of which were with senior producers Newmont Mining and Kennecott/Rio Tinto; as well as serving as a consultant for senior producers such as BHP, Teck-Cominco and Quadra Mining. From 2004 to 2013 he was an officer, co-founder or served on the Board of Directors of several junior public exploration companies with gold and silver projects in Quebec, Nevada, Argentina, Chile, Colombia, Peru, and Bolivia. Mr. Rasmussen has a Master of Science in Geophysics from the University of Utah, and Bachelor of Science degrees in Geology and Physics from Southern Oregon University.

Andrew Steiner
Andrew Steiner is a Ph.D. student studying under the supervision of Ken Hickey at the University of British Columbia. His Ph.D. thesis develops methods to identify ore-fluid pathways in Carlin-type Au-deposits to better define the hydrological regime that controlled their formation. Andrew’s wider research interests explore the way that different sub-disciplines within geology, such as structural geology, sedimentology, and geochemistry, interplay to control the way fluids move in the upper crust that ultimately form hydrothermal mineral deposits.

Andrew completed his B.Sc. in Earth Science at the University of Glasgow in 2017 before starting graduate research in Canada. During his time at Glasgow, he was fortunate enough to study some fantastic geology, such as the Ol Doinyo Lengai carbonatite volcano in Tanzania, the Ronda Peridotite Massif in Spain, and the Eastern Layered Intrusion on the Isle of Rum. These experiences inspired him to pursue a career that draws on several aspects of geology while allowing ample time in the field. In the future, Andrew hope to continue to study mineral deposits, either in an academic or industry setting.

Dan Sturmer
Dan Sturmer has been actively working on aspects of Nevada geology for more than 15 years. He has worked across the state, focusing on Late Paleozoic sedimentation and tectonics and Cenozoic sedimentation, faulting, volcanism, and landsliding. He is currently the Paul Potter Assistant Professor in Basin Dynamics in the Department of Geology at the University of Cincinnati. Prior to that he was a Postdoctoral fellow in the Jackson School of Geosciences at the University of Texas at Austin and an exploration geologist at Shell Exploration and Production Company in Houston. He earned a B.A. in Business Administration and a B.S. in Geology from California State University, Fullerton. He completed graduate studies at the University of Nevada, Reno, working with Jim Faulds on the Olinghouse Fault (M.S., 2007) and with Jim Trexler on the Ely-Bird Spring basin (Ph.D., 2012).

Andrew Zuza
Andrew Zuza is an Assistant Professor at the University of Nevada, Reno. He is a field-based structural geologist and mapper, with research focuses on crustal thickening during orogenic plateau development and subsequent collapse. Andrew and his graduate students study the Mesozoic-Cenozoic evolution of the inferred Nevadaplano plateau in Nevada, including how it was constructed in time and space, and the normal fault systems that thinned this previously thickened crust. As part of this work, they are investigating how the thermal and rheological evolution of the crust links with deformation mechanisms from grain to outcrop to regional scales. This research has impacts on the location and timing of economic mineralization across the state. Zuza’s research team also draws on analogs from the modern Himalayan-Tibetan orogen, where their ongoing research focuses on similar problems. Andrew Zuza teaches field methods classes at UNR, including the capstone summer field course.