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Plenary Sessions

What is special about giant mineral systems

David Groves
SGA President

SGA Plenary Session

Self-organized systems, ore formation and mineral system science Goldfields

 Jon Hronsky

Jon Hronsky is currently a Principal of Western Mining Services, a consultancy group with offices in Perth and Denver that provides services to the global mineralJon Hronsky exploration industry. Jon is also currently Chairman of the board for the Centre for Exploration Targeting, an industry focused research group based at the University of WA and Curtin University in Perth. In addition, Jon is a Director of Encounter Resources, a Western Australian focused uranium and base-metals junior explorer. Prior to his current role, Jon was Manager of Strategy and Project Generation for BHP Billiton’s global mineral exploration group, and before that was Global Geoscience Leader for WMC Resources.  Jon graduated from the Kalgoorlie School of Mines with a degree in Mining Geology in 1983 and then joined WMC Resources. He completed his PhD at UWA in 1992(supervised by Professor David Groves) on the topic of ore-shoot controls at the Lancefield gold mine. Subsequently his career focus has been the interface between innovative geoscience R&D and pragmatic exploration business outcomes, particularly related to exploration targeting. In this context, he has been particularly interested in the relationship between large-scale lithospheric architecture and the location of giant mineral deposits.  His application of these concepts led to the discovery of the West Musgrave NiS province in WA. Jon was awarded the Gibb Maitland Medal in 2005, the highest award of the WA Division of the Geological Society of Australia.

Fluid inclusions and numerical modelling of magmatic-hydrothermal systems

Chris Heinrich

Chris Heinrich currently leads the Fluids and Mineral Deposits Group at ETH Zurich, Switzerland. His team is teaching and  researching the fundamentals of hydrothermalChris Heinrich ore formation in magmatic, mid-ocean-ridge and active geothermal settings. They are trying to combine quantitative geological observation with geochronology, fluid-inclusion microanalysis, and numerical modelling of fluid flow and mineral precipitation. The main field areas of Chris and his colleagues and students are in the Balkan-Carpathian orogen of Europe, in the Andes of Chile and Argentina, the Bingham district of the USA, and the Proterozoic of Australia, where the main focus is on the relationships between hydrous magmatism, porphyry-style and epithermal ore formation.  Chris graduated at ETH as a metamorphic petrologist, but then spent the first decade of his career in Australia, at CSIRO and GA, before taking up the economic geology chair at ETH in 1994.


Precious Paradigms: Controversies in PGE ore genesis.

Jim Mungall

James E Mungall is an associate professor in the Department of Geology at the University of Toronto.  He is currently on a leave of absence to work as Chief Geologist of Toronto-based Noront Resources Ltd.  His research is largely oriented toward understanding the genesis of magmatic ore deposits, using inputs from igneous and hydrothermal geochemistry, extensive field work, and experimental petrology.  A major focus of his work in recent years has been the use of platinum-group elements as tracers to illuminate the genetic processes that form magmatic ores, spanning the range from melting and magma transport to phase separation and collection.


Lithospheric analysis and mineral systems    AngloGold Ashanti

 

 


Sue O’ReillySue O'Reilly


Sue O’Reilly is Director of the GEMOC ARC National Key Centre in the Department of Earth and Planetary Sciences at Macquarie University.  Her early background was in classical petrology and geochemistry but she began an ongoing strategic research direction with industry collaborators in the  mid-80s.  Her field of research has been understanding how the Earth works by integrating information across the discipline boundaries of geophysics, geochemistry and geodynamics.  In particular, she has led research aimed at unravelling the way that deep Earth processes shape the surface that we live on, and are the ultimate source of many commodities that geologists explore for. GEMOC has a strong Technology Development program aimed at using novel in situ analytical techniques to deliver better ways to understand the timing and significance of tectonic events in both the crust and mantle parts of the lithosphere and applying these to new conceptual methods of exploration. 

Metallogenic evolution with time

Rich GoldfarbRich Goldfarb

Rich Goldfarb is a senior research geologist with the Mineral Resources Program of the U.S. Geological Survey, where he has been employed for more than 28 years.  Rich s major expertise has been on the geochemistry and geology of ore deposits with emphasis on Phanerozoic lode gold.  Much of his earlier career work was concentrated on the Tertiary orogenic gold deposits of southern Alaska.  Results from this work were used to develop ore genesis models for giant gold deposits elsewhere in Alaska and in other parts of the North American Cordilleran. In recent years, Rich has conducted detailed studies on the understanding of the distribution of gold deposits through space and time, compiling the most comprehensive global description of their distribution and evaluating the controlling tectonic/geologic features. Rich has served as President of the Society of Economic Geologists, is a past Silver Medalist and Thayer Lindsley lecturer of the society, has served as chief editor of Mineralium Deposita, and is presently on the editorial boards of Economic Geology and Gondwana Research.

Mesozonal mineralization in the making

Rick SibsonRick Sibson

Rick Sibson graduated BSc (Hons) in Geology from the University of Auckland and then gained a PhD from Imperial College, London, on the structure of the Outer Hebrides Thrust in NW Scotland.  He taught at Imperial College (1973-1982) and UC Santa Barbara (1982-1990), before returning to New Zealand in 1990 as Professor of Geology in the University of Otago, retiring this year.  His research has centred on the structure of crustal fault zones in relation to earthquake source mechanics, with additional interests in structural permeability and the role of fluids in fault processes. A current focus is fault-controlled fluid redistribution in different tectonic settings.  He has authored  80 research papers and has contributed short courses to the mineral industry in Australia, Canada, the United States, Chile, South Africa, and Europe.

 

SEG Plenary Session

Magma fertility and mineralization

David CookeDavid Cooke

David Cooke and his students have been researching magmatic-hydrothermal ore deposits of the circum-Pacific region for over 20 years. Research activities have spanned the geodynamic environments of mineralisation, melt-fluid exsolution and the magmatic-hydrothermal transition, hydrothermal fluid compositions and ore-forming processes. David and his research team have also been studying geochemical halos to mineralised centres, developing new exploration tools for the minerals industry. David was the Society of Economic Geologists Thayer Lindsey lecturer in 2005. He is an associate editor of Economic Geology and is leader of the Ore Deposit Formation research program at CODES, the Australian Research Council’s Centre of Excellence in Ore Deposits.

A perspective on the industry- success over the next five years

John ThompsonJohn Thompson

Born in England, John Thompson obtained his BA from Oxford University and moved to Canada where he completed his M.Sc. and Ph.D. degrees at the University of Toronto.  He joined the BP Minerals group (subsequently Rio Tinto) in 1982 based initially in Australia followed by the UK and US, and was involved in global exploration.  In 1991, John became director of the Mineral Deposit Research Unit (MDRU) at the University of British Columbia, managing research for over twenty companies.  In 1998, he joined Teck Corporation as Chief Geoscientist, and in late 2005 was appointed Vice President Technology for Teck Cominco Limited.

New advances in exploration techniques applied to uranium and IOCG’s

Rick Valenta

Rick Valenta is Managing Director of Bondi Mining Ltd and Chesser Resources Ltd, both ASX-listed junior exploration companies.  Rick has been involved in research andRick Valenta exploration applied to uranium deposits and IOCG targets for the past 22 years.  Prior to his current role, Rick was Chief Operating Officer of Fronteer Development, Chief Geologist of Aurora Energy Resources, a Regional Exploration Manager and Chief Geologist with Mount Isa Mines Exploration, and a Lecturer in Structural Geology and Geophysics at Monash University.  In all of these roles, his focus has been on developing and applying innovative approaches aimed at maximising exploration success.  Over the past 12 years, he has directed exploration expenditure of US$40 million, resulting in the discovery of resources with a total in-ground value of US$8 billion. Those of you who have read this far may be sad to hear that very little of this could be attributed to the application of cutting edge technology or innovation.

Gold solubility, transport and deposition in modern epithermal environments

Stuart Simmons

Stuart Simmons is a consulting geoscientist working in exploration, discovery and development of gold-silver deposits and geothermal resources.Stuart Simmons1

After completing a PhD at the University of Minnesota on the world class Fresnillo Ag-Pb-Zn deposit, Mexico (1987), he moved to New Zealand where he worked in the Geothermal Institute and Geology Department at the University of Auckland until early 2008. During that period, he studied a number of mineral deposits and geothermal systems in the circum-Pacific region. He continues to serve the University of Auckland on a contract basis in the delivery of short courses and research on geothermal resources. His talk with Kevin Brown is an outgrowth of their research on New Zealand geothermal systems over the last 20 years.

IOCG’s, porphyries and alkali alteration in the American Cordilleras

Mark Barton

 

Mark Barton is Professor of Geology and Geochemistry at the University of Arizona and Associate Director of the UA Institute for Mineral Resources. His research interests and span many aspects of energy and mass transfer in the Earth's lithosphere and their applications to mineral deposits. Among these varied topics, recent collaborativeMark barton studies with mining companies and the USGS and supported by these groups and the National Science Foundation have focused on porphyry, IOCG, sediment-hosted Cu, and various precious metal systems and their broader geologic context. Mark is a fellow of and has been active in several professional societies including SGA and SEG. Since joining the UA faculty he has worked actively at the local and national levels to help secure the long term vitality of economic geology research and education in the United States — a challenge at a time when resources are largely taken for granted. Recently, after 15 years directing the geology-focused, research-oriented "Center for Mineral Resources," he helped found the "Institute for Mineral Resources" (IMR) which is a state-, industry-, and privately-funded interdisciplinary organization for research and education that spans science and engineering to public health and policy.

 

 

What we don't know about Olympic Dam style deposits and what we need to find out

Paul Heithersay

Dr Paul Heithersay was appointed Executive Director Minerals and Energy Resources in July 2004. Paul Heithersay leads the PIRSA division of Minerals and Energy Resources. The division manages the state's mineral, gas and petroleum resources on behalf of the people of South Australia.

Prior to joining the Public Service in South Australia in 2002, Paul Heithersay spent overPaul Heithersay 20 years in the mining industry in Australia and Southeast Asia for North Limited and its predecessor Geopeko.  As Exploration Manager for Australasia, Europe and Africa, his responsibilities covered all aspects of exploration and mine development.

He is also on the Industry Advisory panel for the Department of Geology and Geophysics at the University of Adelaide and the Faculty of Engineering, Computer and Mathematical Sciences Advisory Board.Paul Heithersay holds a Bachelor of Science (Hons) (University of Adelaide) and a PhD (Australian National University) for his research on the Northparkes porphyry copper and gold deposits.

 

Making metal-supercharged ore fluids: the key to hydrothermal base-metal ore formation?

Jamie Wilkinson

 

Jamie Wilkinson was born in the United Kingdom and educated at Cambridge (B.A.) and Southampton (Ph.D.) followed by postdoctoral research at Imperial CollegeJamie Wilkinson 1 London. He is now Reader in Hydrothermal Geochemistry in the Department of Earth Science Engineering at Imperial College, part of the historic Royal School of Mines, and currently holds the post of Visiting Research Professor at CODES, University of Tasmania. He has been involved in teaching mineral deposit geology, geochemistry and field geology at Imperial College for the past fifteen years and has supervised Ph.D. students on a range of projects involving analytical development and case studies of hydrothermal ore-forming processes. Current research is focused on the new field of transition metal isotope geochemistry and its application in ore deposit studies and the analysis and role of metal-rich hydrothermal fluids in ore systems.

 

 

 

 

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