| Title | Are IOCG-type alteration and mineralization from the Labrador Trough similar to those of the Great Bear Magmatic Zone? |
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| Author | Nadeau, O; Rufiange, E; Corriveau, L ; Montreuil, J F; DeToni, A F |
| Source | GAC-MAC-CSPG-CSSS Joint Meeting, Abstracts vol. 39, 2016. 
Open Access |
| Links | Online - En ligne
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| Image |  |
| Year | 2016 |
| Alt Series | Earth Sciences Sector, Contribution Series 20150426 |
| Publisher | Geological Association of Canada |
| Meeting | GAC-MAC 2016; Whitehorse, Yukon; CA; June 1-3, 2016 |
| Document | serial |
| Lang. | English |
| Media | paper |
| File format | pdf |
| Province | Northwest Territories |
| NTS | 86C; 86D; 86E; 86F; 86L; 86K |
| Area | Great Bear Lake magmatic zone |
| Subjects | economic geology; general geology; geochemistry; iron; iron oxides; hydrothermal alteration; host rocks; Labrador Trough; Romanet Horst |
| Program | Targeted Geoscience Initiative (TGI-4) Uranium Ore Systems |
| Released | 2016 01 01 |
| Abstract | Geological research conducted from 2005 to 2016 in the Great Bear magmatic zone (GBMZ) by the Geological Survey of Canada's GEM-1 IOCG-Great Bear Project has significantly improved our understanding of
iron oxide alkali alteration systems and the genetic linkages between iron-oxide-copper-gold (IOCG), iron oxide-apatite (IOA) and albitite-hosted uranium deposits. In parallel, recent work conducted in the Romanet Horst of the Labrador Trough by
Honey Badger Exploration Inc., Energizer Resources Inc., the Geological Survey of Canada and a research group from the University of Ottawa suggested that the variety of hydrothermal alteration types and their metal associations are related to
IOCG-type mineralization and albitite-hosted U-Au prospects. The respective tectonic contexts of the Horst and of the GBMZ, the chemical signature of their respective hydrothermal alteration types and magnetite, and their precursor sequences are
compared. This allows to contrast alteration types and metal associations in systems that form in intermediate to felsic volcanic sequences and siliciclastic-dominant sedimentary basins (GBMZ) versus those that form in mafic volcanic sequences and
carbonate-dominant sedimentary basins (Romanet Horst). |
| Summary | (Plain Language Summary, not published)
Geological research conducted by the GEM and TGI programs has significantly improved our understanding of iron oxide alkali alteration systems and the
genetic linkages between iron-oxide-copper-gold (IOCG), iron oxide-apatite (IOA) and albitite-hosted uranium deposits in the Great Bear magmatic zone (GBMZ). Collaborative agreements between NRCan, Honey Badger Exploration Inc., Energizer Resources
Inc. and the University of Ottawa are now permitting to contrast such ore systems formed in intermediate to felsic volcanic sequences and siliciclastic-dominant sedimentary basins (GBMZ) with those formed in mafic volcanic sequences and
carbonate-dominant sedimentary basins (Romanet Horst). Longer term research aims to understand the source of fluids and metals for uranium bearing polymetallic mineralization within iron oxide alkali alterations systems. |
| GEOSCAN ID | 297597 |
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