SC04

IOA, IOCG and affiliated deposits – SC04 – REGISTRATION STILL OPEN

Venue : INRS, 490 de la Couronne, Québec City

Duration : 1 day (August 19; pre-conference short course)

Organizers: Louise Corriveau (Geological Survey of Canada), Patrick Williams (Clump Mountain Geoscience Pty Ltd), Hamid Mumin (Brandon University)

Presenters: Louise Corriveau (Geological Survey of Canada), Hamid Mumin (Brandon University), Fernando Tornos (National Research Council of Spain), Patrick Williams* (Clump Mountain Geoscience Pty Ltd) and collaborators
* Participation to be confirmed

Contact person: Louise Corriveau (Louise.Corriveau@canada.ca)

Number of participants: minimum 33 / maximum 80 participants

Registration deadline: May 15, 2017

Cost:

  • Student: $ 250.00 CAD
  • SGA & EAG member/non-member: $ 550.00 CAD / $ 625.00 CAD

* The reduced rate for students is available to a limited number of students. Additional students will be put on a waiting list and may be accepted at this rate with or without hand notes and lunch.

Description:  This course will review the alteration, brecciation and mineralisation footprints of iron oxide and alkali alteration systems, their iron oxide-apatite (IOA) and iron oxide copper-gold (IOCG) deposits, and variants thereof, their skarns, their albitite-hosted uranium deposits and other affiliated deposits. The space, time, paragenesis and compositional evolution of these metasomatic systems and the spectrum of potential ore forming processes will be illustrated from initial metasomatic growth through subsequent orogenesis and regional metamorphism. Key districts used to illustrate these ore systems include the Olympic province and Cloncurry district in Australia, districts from northern Fennoscandia, the Chilean Andes, and the Canadian Great Bear magmatic zone and Grenville Province. Amongst the topics addressed will be the metasomatic, magmatic and fluid processes as metal sourcing, transport and depositional agents, the impact of confined ductile to brittle deformation on interpreting timing of events and metal remobilisation, the geological factors that sustain and re-energise these hydrothermal systems, and available current models that predict parageneses of metamorphosed alteration systems and reference case examples. The course targets geoscientists from all sectors interested in the broad knowledge base required for more effective exploration, mapping, and research on these polymetallic mineral systems.

Format: Oral presentations and practicals based on illustrative rock suites.

About the presenters

Louise Corriveau is Research scientist in regional and economic geology at the Geological Survey of Canada and Adjunct professor at INRS and Laval University. Since 1990 she leads and takes part in multidisciplinary field-based projects in the Canadian Shield, in particular in the Grenville Province. Since 2004 she combines her expertise of field geology, petrology, metamorphosed hydrothermal systems and alkaline magmatism to conduct research on the space-time evolution of iron oxide-alkali alteration footprints and their IOCG and affiliated deposits taking advantage of the excellent field exposures of the Great Bear magmatic zone, NWT, Canada. She also supervised graduate and undergraduate students and taught graduate and short courses on the above topics as well as on magma emplacement — another favourite topics of hers. In addition, Louise co-organised and co-edited special issues and volumes for CJES, GAC, GSA, Economic Geology and NEIGC, and contributed to PGC Publishing IOCG & related deposits series and Treatise of Geochemistry.

Hamid Mumin is Professor of Economic Geology at Brandon University for the past 21 years.  His primary interests include mineral deposits geology, and exploration and development of mineral resources. The majority of his research has focussed on iron oxide copper-gold and related deposits with a special interest in the Great Bear magmatic zone, NWT, Canada.  He has investigated the relationships between porphyry copper, epithermal, and magmatic-hydrothermal IOCG systems, and the important role of secular changes in Earth Evolution on ore forming processes, and in particular, on magmatic-hydrothermal deposits. Hamid has worked in industry on many mineral exploration and development programs and continues to consult for various projects.

Fernando Tornos is currently Researcher at the National Research Council of Spain but previously has worked in the Spanish Geological Survey for more than 25 years, where he has served as ore deposit geologist, researcher and director of research. He has been involved in different projects funded by the European Union, Spanish grants and mining companies dealing with very different types of ore deposits, dominantly skarns and volcanosedimentary massive sulphides, in Europe, Latin America and Africa. In the recent times his major topics of interest are the geomicrobiology of ore deposits and the relationships between magnetite-apatite deposits, IOCG’s and magmatic-hydrothermal systems in Iberia and, especially, in the Andes. He is teacher at the Universidad International de Andalucia, has led several field trips in SW Iberia and the Andes and is one of the coordinators of the SEG-SGA-UNESCO Latin American Courses of Metallogeny. Fernando has been also president of SGA between 2010 and 2011.

Patrick Williams is the Director of Clump Mountain Geoscience Pty Ltd. Prior to that, he taught economic geology, petrology and geochemistry in the universities of Southampton and London, and from 1990 to 2008 at James Cook University in Townsville, Australia. His experience of research into, and exploration of IOCG systems spans 25 years with particular emphasis on the Cloncurry district, the Gawler Craton and northern Sweden. He was the invited first and co-ordinating author of the paper on IOCG deposits in the Society of Economic Geologists’ Economic Geology 100th Anniversary Volume and has also authored several contributions to the PGC Publishing « Hydrothermal Iron Oxide Copper-Gold & Related Deposits: A Global Perspective » series as well as numerous papers on related topics in the international literature. Since 2008 he has been working as a consultant to the exploration industry specialising in Proterozoic base metal and gold exploration and the petrochemical evaluation of rocks in mineralised systems.

Collaborators:
Anne-Laure Bonnet, Félix Gervais and Pierre-Henri Trapy (Polytechnique-Montréal), Pedro Acosta-Gongora, Eric Potter and Randy Enkin (Geological Survey of Canada), Jean-François Montreuil (Red Pine Exploration), Olivier Blein (BRGM), Anthony de Toni (SOQUEM)

Program

Part 1 – Registration and introduction to the venue

7:30 – 8:00   Registration and Rock lab: enjoy your coffee and the puzzle on your table, labelling and inferring timing and depth to surface relationships for the series of samples displayed at your table.

8:00 – 8:15   Introduction: course outline and brief overview of the distribution and age span of IOCG and IOA deposits – Louise Corriveau and Patrick Williams

Part 2 – IOCG and IOA deposits and districts: geotectonic context, geological settings, deposit geological and geophysical attributes and possible metallogenic significance of magmatism

8:15 – 9:45   The Proterozoic Olympic IOCG province, the Cloncurry district and northern Fennoscandia – Patrick Williams

9:45 – 10:30   The Proterozoic Great Bear magmatic zone – Hamid Mumin and Jean-François Montreuil

10:30 – 10:45   Break

10:45 – 11:45   The Phanerozoic Iberian and Andean districts – Fernando Tornos

11:45 – 12:30   Lunch

Part 3 – Rock lab

12:30 – 13:00   Labelling, describing, and inferring timing and depth to surface relationships for the series of samples displayed at each table – participants

Part 4 – Regional to microscopic footprints of iron-oxide alkali alteration ore systems

13:00 – 14:15   Geological attributes, physical property, and space-time relationships of alteration, brecciation and mineralisation footprints and linkages amongst IOA, IOCG, skarns and albitite-hosted U±Au deposits – Louise Corriveau, Jean-François Montreuil, Eric Potter, Anthony de Toni and Randy Enkin

14:15 – 14:45   Chemical signatures and explorationist tool box (alteration index, bar charts, alteration maps, mineral indicators) – Jean-François Montreuil, Pedro Acosta-Gongora, Olivier Blein and Louise Corriveau

14:45 – 15:15   Geophysical signatures and explorationist tool box – Patrick Williams

15:15 – 15:30   Break

15:30 – 16.00   Metasomatic linkages amongst IOA, IOCG and affiliated deposits: a geological tool box for exploration – Louise Corriveau, Jean-François Montreuil, Eric Potter

16:00 – 16.30   The IOCG-porphyry-epithermal continuum in time and space and implications for exploration – Hamid Mumin

16:30 – 17.15   Iron-oxide alkali alteration systems and their epithermal caps metamorphosed at amphibolite and granulite facies: impact on mineral parageneses hence rock types and geophysical signatures – Louise Corriveau, Olivier Blein, Anne-Laure Bonnet, Pierre-Henri Trapy, Félix Gervais

17:15 – 17.30   Questions and Discussion