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Conference Program
 
Geochemistry of Mineral Deposits
Global Metal Resources: Geological Processes in Space and Time
June 29 - July 4, 2008
Il Ciocco Hotel and Resort
Lucca (Barga), Italy

Mineral resources have always been an essential foundation of human civilization. Current and projected economic growth, especially in China and India, highlight an increasing worldwide need for metals, as reflected by prices that are near historic highs for a wide range of mined commodities. Even with increased recycling and substitution, increasing demand requires that metals and other rare elements will continue to be mined from ore deposits. Such deposits can only be utilized in an environmentally responsible manner, if the ore elements are highly enriched by natural chemical and physical processes. These processes operate over a great range of spatial and temporal scales in the earth’s interior or at its surface, from the earliest geological records of our planet to the present day.

This Gordon Conference will bring together a diverse group of geoscientists from the resource industry, academia and government, with the aim of analyzing the state of our understanding of these ore-forming processes. A major emphasis will be on assessing global-scale processes that generate large metal provinces during distinct periods of earth’s evolution. Our prime aim is to identify future directions for research that will not only address the pressing issue of resource supply, but also will continue to shed light on how ore deposits act as indicators of large-scale tectonic, magmatic, sedimentary, metamorphic and others processes in Earth’s history.


Contributors

SUNDAY
3:30 pm - 7:30 pmArrival and Check-in (Check-in continues on Monday morning for late-arrivals)
5:30 pm - 5:45 pmWelcome / Introductory Comments by GRC Site Staff
Information about Program, Posters and Social Activities
5:45 pm - 7:30 pmASSESSING & FINDING MINERAL RESOURCES FOR GLOBAL ECONOMIC GROWTH
The goal of this Gordon Conference is to analyze our current ability of predicting global commodity reserves, as basis for identifying essential research frontiers for the coming years: Which are the understudied commodities, what are the big questions to be researched, what new data and methods and expertise will be needed, which directions should academic/industry collaboration take?
Discussion Leader: Greg Hall (Consultant, formerly Placer Dome, Perth)
5:45 pm - 6:00 pmGreg Hall (Consultant, formerly Placer Dome, Perth)
"Long-term availability of mineral resources, discovery rate of new mineral deposits, and research requirements for future exploration and sustained resource supply"
6:00 pm - 6:10 pmQuestions
6:10 pm - 6:25 pmJane Hammarstrom (US Geological Survey, Reston)
"Global mineral resource assessment - the state of the art. Where do we go from here?"
6:25 pm - 6:40 pmQuestions
6:40 pm - 6:55 pmCampbell McCuaig (University of Western Australia, Perth)
"Are we asking the right questions? Key scientific problems holding back our predictive capability in exploration"
6:55 pm - 7:30 pmQuestions and Discussion
7:30 pmDinner
Welcome from the host country: Benedetto de Vivo (University of Napoli)
MONDAY
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmLITHOSPHERE EVOLUTION, METALLOGENIC PROVINCES AND EPOCHS
Deposits of particular metals are globally concentrated in distinct regions and periods of earth evolution. How can we use new geophysical tools for imaging structure and modeling dynamics of the lithosphere, to understand major metal concentrations? How to use this understanding for a more predictive assessment of known and new provinces and for quantification of their total metal endowment? What is needed for quantitative global resource assessment and future exploration practice?
Discussion Leaders: Larry Cathles (Cornell University, Ithaca) and Francois Robert (Barrick Gold Corporation, Toronto)
9:00 am - 9:10 amIntroduction by Discussion Leaders
9:10 am - 9:35 amGraham Begg (Minerals Targeting International PL, Perth)
"A Global Geodynamic and Metallogenic Model"
9:35 am - 10:00 amDiscussion
10:00 amCoffee Break / Group Photo
10:40 am - 11:05 amSierd Cloetingh (Free University, Amsterdam)
"The thermo-mechanical behavior of the lithosphere, based on seismic tomography and numerical modelling: rifts, plumes, basins, orogens and fluid flow leading to the generation of mineral resources"
11:05 am - 11:30 amDiscussion
11:30 am - 11:55 amGraham Begg (Minerals Targeting International PL, Perth), with acknowledgements to Suzanne Y. O'Reilly, W.L. Griffin, L.M. Natapov, S.P. Grand, C.J. O'Neill and E. Belousova
"Metallogeny and the Lithosphere"
11:55 am - 12:20 pmDiscussion
12:20 pm - 12:30 pmAnnouncements: Organization, Poster discussions, Business Meeting, etc.
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 5:30 pmPoster Session
5:30 pm - 7:30 pmLITHOSPHERE EVOLUTION, METALLOGENIC PROVINCES AND EPOCHS
(Session Continued)
Discussion Leaders: Larry Cathles (Cornell University, Ithaca) and Francois Robert (Barrick Gold Corporation, Toronto)
5:30 pm - 5:55 pmStephen Miller (University of Bonn)
"Large-scale co-seismic permeability changes and the effects on aftershock generation, earth degassing, post-seismic fluid flow, and implications for ore-deposit formation"
5:55 pm - 6:20 pmDiscussion
6:20 pm - 6:45 pmDavid Clark (CSIRO, Sydney)
"Predictive geophysical exploration models for porphyry and iron-oxide hosted Cu-Au provinces"
6:45 pm - 7:10 pmDiscussion
7:10 pm - 7:30 pmSummary Discussion and Outlook: Do metallogenic provinces and epochs exist?
8:00 pmDinner
TUESDAY
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmCONVERGENT PLATE BOUNDARIES AND MAJOR CU-MO-AU BELTS
The formation of ore deposits in magmatic and metamorphic settings is intensely studied and increasingly understood at the deposit scale, indicating that giant deposits follow same principles as smaller ones, but that only some provinces produce really large and rich deposits. Which processes give rise to fertile fluid-producing magmas on the province scale, from the deep slab to upper-crustal magma chambers? Which new observations do we need to identify belts that are destined to generate giant ore deposits?
Discussion Leaders: Keiko Hattori (University of Ottawa) and David Cooke (CODES, University of Tasmania, Hobart)
9:00 am - 9:10 amIntroduction by Discussion Leaders
9:10 am - 9:35 amAlexander Yakubchuk (Lero Gold Corp / CERCAMS, London) and R. Seltmann (CERCAMS, Natural History Museum, London)
"Neoproterozoic to Mesozoic granitoid magmatism and giant magmatic-hydrothermal Cu-Au deposits in Asia: a consequence of global-scale tectonic and metallogenic processes"
9:35 am - 10:00 amDiscussion
10:00 amCoffee Break
10:30 am - 10:55 amRichard Arculus (ANU, Canberra)
"Subduction, melt generation, ascent, magma-chamber dynamics and fluid exsolution: Deep processes optimising upper-crustal ore formation"
10:55 am - 11:20 amDiscussion
11:20 am - 11:45 amJames Webster (American Museum of Natural History, New York)
"Magmatic fluids from mantle to volcanoes: the role of volatiles other than water in generating ore-forming magmatic-hydrothermal systems"
11:45 am - 12:10 pmDiscussion
12:10 pm - 12:30 pmDiscussion of Selected Poster Topics
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 5:30 pmPoster Session
5:30 pm - 7:30 pmCONVERGENT PLATE BOUNDARIES AND MAJOR CU-MO-AU BELTS
(Session Continued)
Discussion Leaders: Keiko Hattori (University of Ottawa) and David Cooke (CODES, University of Tasmania, Hobart)
5:30 pm - 5:55 pmAndreas Audétat (Bayerisches Geoinstitut, Bayreuth)
"Identifying fertile vs. barren magmatic complexes and igneous terrains: New evidence from natural and synthetic fluid and melt inclusions"
5:55 pm - 6:20 pmDiscussion
6:20 pm - 6:45 pmJames Cleverley (pmd*CRC at CSIRO, Perth)
"Integrating three-dimensional geophysics, geochemistry and numerical modeling of fluid-rock interaction in a major Archaean gold district: Kambalda - St. Ives - Kalgoorlie, Western Australia"
6:45 pm - 7:10 pmDiscussion
7:10 pm - 7:30 pmSummary Discussion and Outlook
8:00 pmDinner
WEDNESDAY
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmTIMING AND DURATION OF ORE-FORMING PROCESSES
How long do 'metallogenic epochs' last, and why? What is the life-time of ore-forming hydrothermal systems? How does uplift and erosion rate impact on deposit preservation and exposure? Seismic tomography and U-Th disequilibrium dating indicate lithosphere-scale magma and fluid flow on time scales of seconds to decades, much faster than the resolution of dating techniques. How does our thinking about ore formation incorporate these facts?
Discussion Leaders: Holly Stein (AIRIE Program at Colorado State University, Fort Collins, and Geological Survey of Norway, Trondheim) and Rick Sibson (University of Otago, Dunedin)
9:00 am - 9:10 amIntroduction by Discussion Leaders
9:10 am - 9:35 amMike Sandiford (University of Melbourne)
"Thermal and tectonic constraints at lithosphere scale determine the time scale of metallogenic province development within and along continents"
9:35 am - 10:00 amDiscussion
10:00 amCoffee Break
10:30 am - 10:55 amPhilipp Weis (ETH Zürich) and Sebastian Geiger (Heriot-Watt University, Edinburgh)
"Timescales of interacting physical processes in ore-forming magmatic-hydrothermal systems"
10:55 am - 11:20 amDiscussion
11:20 am - 11:45 amStuart Simmons (University of Auckland)
"New constraints on hydrothermal processes and timescales from active magmatic-hydrothermal systems"
11:45 am - 12:10 pmDiscussion
12:10 pm - 12:30 pmSummary Discussion
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 5:30 pmPoster Session
5:30 pm - 7:30 pmTIMING AND DURATION OF ORE-FORMING PROCESSES
(Session Continued)
Discussion Leaders: Rick Sibson (University of Otago, Dunedin) and Holly Stein (AIRIE Program at Colorado State University, Fort Collins, and Geological Survey of Norway, Trondheim)
5:30 pm - 5:55 pmMassimo Chiaradia (University of Geneva)
"Ore-forming processes at province to deposit scales: constraints from isotope geochronology"
5:55 pm - 6:15 pmDiscussion
6:15 pm - 6:40 pmKenneth Hickey (MDRU, University of British Columbia, Vancouver)
"Thermochronology: contraints on characteristic lifetimes of hydrothermal systems and the formation of ore deposits"
6:40 pm - 7:00 pmDiscussion
7:00 pm - 7:10 pmSummary and Outlook
7:10 pm - 7:40 pmBusiness Meeting
(Nominations for the next Vice Chair; Fill out Conference Evaluation Forms; Discuss future Site & Scheduling preferences; Election of the next Vice Chair)
8:00 pmDinner
THURSDAY
7:30 am - 8:30 amBreakfast
9:00 am - 12:30 pmCOMMON FLUIDS, CRAZY FLUIDS, AND THE PREDICTION OF UNEXPECTED MINERAL DEPOSIT TYPES
New laboratory experiments and fluid inclusion analyses confirm that ordinary crustal fluids can make ore deposits, but they also have indentified that liquid hydrocarbon, magmatic vapour, dry salt melts and other 'special' fluids may be even more effective metal transporters. In this session, we wish to link the findings of the preceding days with these new observations. Each speaker is charged with speculating on specific geological process scenarios, how and where so-far-unknown mineral deposit types and new sources of metals might be predicted, and how they could be explored on a global to prospect scale.
Discussion Leaders: Anthony William-Jones (McGill University, Montreal) and Bruce Yardley (University of Leeds)
9:00 am - 9:10 amIntroduction by Discussion Leaders
9:10 am - 9:35 amJacob Hanley (St. Mary's University, Halifax)
"Salt melts, sulfide melts and silicate melts: the origin of the Merensky Reef and other platinum-group-element deposits in mafic magma systems"
9:35 am - 10:00 amDiscussion
10:00 amCoffee Break
10:30 am - 10:55 amGleb Pokrovski (CNRS, University of Toulouse)
"Vapor transport and vapor-liquid fractionation of ore metals in hydrothermal systems: Experimental and theoretical insights into the role of solvent (H2O, CO2) and major ligands (Cl, S), and geological implications"
10:55 am - 11:20 amDiscussion
11:20 am - 11:45 amFilipa Marques (University of Toronto and University of Lisbon)
"Magmatic fluids versus rock leaching in generating submarine massive sulfide deposits in arcs, backarc and mid-ocean ridge settings"
11:45 am - 12:10 pmDiscussion
12:10 pm - 12:30 pmDiscussion of Selected Poster Topics
12:30 pmLunch
1:30 pm - 4:00 pmFree Time
4:00 pm - 5:30 pmPoster Session
5:30 pm - 7:30 pmCOMMON FLUIDS, CRAZY FLUIDS, AND THE PREDICTION OF UNEXPECTED MINERAL DEPOSIT TYPES
(Session Continued)
Discussion Leaders: Anthony William-Jones (McGill University, Montreal) and Bruce Yardley (University of Leeds)
5:30 pm - 5:55 pmPoul Emsbo (US Geological Survey, Denver)
"The role of hydrocarbons in ore formation: transport agent or precipitation trap?"
5:55 pm - 6:20 pmDiscussion
6:20 pm - 6:45 pmVic Wall (Taylor Wall & Associates, Brisbane)
"Uranium ore systems through geological time: Basins, brines and hydrocarbons"
6:45 pm - 7:05 pmDiscussion
7:05 pm - 7:30 pmConcluding Discussion and Farewell
8:00 pmDinner
FRIDAY
7:30 am - 8:30 amBreakfast
9:00 amDepart

 
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