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TitleRecognition of hydrothermal alteration using airborne hyperspectral imagery and gold favourability mapping in the Hope Bay Volcanic Belt, Nunavut
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AuthorYarra, D R; Peter, J; Harris, J; Fueten, F
SourceGeological Survey of Canada, Open File 7470, 2014, 1 sheet, https://doi.org/10.4095/293727 (Open Access)
Image
Year2014
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediaon-line; digital
File formatpdf
ProvinceNunavut
NTS56M; 66P
Lat/Long WENS -98.0000 -94.0000 68.0000 67.0000
Subjectseconomic geology; exploration; exploration methods; mineral exploration; gold; mineralization; alteration; hypothermal alteration; spectral analyses; satellite imagery; Archean; greenstone belts; mapping techniques; computer mapping; Hope Bay Volcanic Belt; Slave Craton; Boston Deposit; predictive mapping
Illustrationslocation maps; flow charts; plots
ProgramVolcanogenic Massive Sulfide Ore Systems, Targeted Geoscience Initiative (TGI-4)
Released2014 05 09
Summary(Plain Language Summary, not published)
The Targeted Geoscience Initiative (TGI-4) is a collaborative federal geoscience program that provides industry with the next generation of geoscience knowledge and innovative techniques to better detect buried mineral deposits, thereby reducing some of the risks of exploration. High-resolution airborne hyperspectral imagery was collected over the Hope Bay Volcanic Belt, Nunavut. Our analysis of the imagery obtained for the area indicates that the method is effective in mapping the distribution of so-called hydrothermal alteration minerals that are associated with known gold and base-metal mineral deposits and which occur around them, and also highlights areas for which there are no known deposits. The remotely sensed data can be incorporated together with existing geological and geophysical datasets to produce predictive maps of orogenic gold deposit locations. Thus, hyperspectral remote sensing is a viable part of the mineral explorationist¿s toolbox of methods in some parts of Canada¿s north.
GEOSCAN ID293727