MD43A:
Rare Earth Element Deposits: Characteristics and Genesis I

Submit an Abstract to this Session

Session Title - en français: Gîtes de Terres Rares: Caractéristiques et Genèse

Session ID#: 6927

Session Description:
Rare earth element (REE) deposits form in a variety of tectonic settings (e.g., rifts, subductions, orogenesis) by a number of ore-forming processes (magmatic, hydrothermal, hybrid) from Precambrian to Phanerozoic times. Our understanding of REE deposits has significantly improved over the years but remains incomplete. The increasing global demand warrants a growing interest in exploration and exploitation industry. This session plans to provide a snapshot of the current understanding of these deposits. We invite contributions which address questions such as: In what tectonic setting were they emplaced? What are the roles of magmatic, metasomatic and supergene processes? What is the host mineralogy of the REE? How does this affect recovery and processing? What area the geochemical footprints of REE deposits? How do we explore for REE deposits?
OSPA Liaison:  Olivier Nadeau, University of Ottawa, Earth Sciences, Ottawa, ON, Canada
Chairs:  Olivier Nadeau, University of Ottawa, Earth Sciences, Ottawa, ON, Canada and Anthony Eric Williams-Jones, McGill University, Earth and Planetary Sciences, Montreal, QC, Canada
Primary Convener:  Olivier Nadeau, University of Ottawa, Earth Sciences, Ottawa, ON, Canada
Convener:  Anthony Eric Williams-Jones, McGill University, Earth and Planetary Sciences, Montreal, QC, Canada
Index Terms:

1034 Hydrothermal systems [GEOCHEMISTRY]
1042 Mineral and crystal chemistry [GEOCHEMISTRY]
3618 Magma chamber processes [MINERALOGY AND PETROLOGY]
3665 Mineral occurrences and deposits [MINERALOGY AND PETROLOGY]
Co-Sponsor(s):
  • EP - Element Partitioning and Mobility
  • SE - Solid Earth
  • VGP - Volcanology, Geochemistry, and Petrology

Abstracts Submitted to this Session:

MD43A-01
The Key Controls on Making Rare Earth-Rich Carbonatites (Invited) (34590)
Frances Wall1, Sam Broom-Fendley1,2, Vicky Do Cabo3, Emma Dowman4, Dora Kavecsanszki1, Ed Loye1 and Kate Moore1,2, (1)University of Exeter, Camborne School of Mines, Penryn TR10 9FE, United Kingdom, (2)British Geological Survey, Keyworth, Nottingham, United Kingdom, (3)Geological Survey of Namibia, Economic Geology, Windhoek, Namibia, (4)Kingston University, School of Geography, Geology and the Environment, London, United Kingdom
MD43A-02
Rare earth deposits associated with carbonatites: little-known stats and facts every explorationist should know (Invited) (36814)
Anton Chakhmouradian1, Ekaterina Reguir1, Jindrich Kynicky2 and Cheng Xu3, (1)University of Manitoba, Department of Geological Sciences, Winnipeg, MB, Canada, (2)Mendel University, Brno, Czech Republic, (3)Peking University, School of Earth and Space Science, Beijing, China
MD43A-03
Hydrothermal transport, deposition, and fractionation of REE: Experimental data and thermodynamic calculations (34346)
Artaches A Migdissov1, Anthony Eric Williams-Jones2 and Alexander Timofeev2, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)McGill University, Earth and Planetary Sciences, Montreal, QC, Canada
MD43A-04
The Sullivan Island Carbonatite Complex and Its Relationship to Late Alkalic Magmatism in the Central Metasedimentary Belt boundary tectonic zone, Grenville Orogen, Southeastern Ontario (35071)
Robert Michael Easton, Ontario Geological Survey, Sudbury, ON, Canada
MD43A-05
The Solubility and Speciation of Tantalum in Fluoride-Bearing Aqueous Solutions  (35392)
Alexander Timofeev1, Artaches A Migdissov2 and Anthony Eric Williams-Jones1, (1)McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, (2)Los Alamos National Laboratory, Los Alamos, NM, United States
MD43A-06
Y and HREE Mineralization in the MAW Zone, Athabasca Basin: Petrography and Fluid Inclusion Studies (33610)
Morteza Rabiei1, Guoxiang Chi1 and Charles Normand2, (1)University of Regina, Department of Geology, Regina, SK, Canada, (2)Saskatchewan Ministry of the Economy, Saskatchewan Geological Survey, Regina, SK, Canada
MD43A-07
In situ U-Pb geochronology, Hf and Sm-Nd isotopic characteristics of zircon, titanite, apatite and monazite from the Hoidas Lake REE mineralization, northern Saskatchewan, Canada (34342)
Krisztina Pandur1, Kevin Michael Ansdell1, Christopher RM McFarlane2, John M. Hanchar3 and Charlie T. Harper4, (1)University of Saskatchewan, Saskatoon, SK, Canada, (2)University of New Brunswick, Fredericton, NB, Canada, (3)Memorial University of Newfoundland, St John's, NL, Canada, (4)Harper Geological Consulting & Exploration, Regina, SK, Canada
MD43A-08
Airborne Geophysics for Rare Earth Element Exploration (35812)
Olivier Ayotte, Institut Maritime du Quebec, Rimouski, QC, Canada, Olivier Nadeau, University of Ottawa, Earth Sciences, Ottawa, ON, Canada and Timothée Fortin LaMothe, Ecole Polytechnique, Genie Geologique, Montreal, QC, Canada
See more of: Mineral Deposits and Ore Minerals