Authors
Philip Lypaczewski, Benoit Rivard, Nicolas Gaillard, Stéphane Perrouty, Nicolas Piette-Lauzière, Charles L Bérubé, Robert L Linnen
Publication date
2019/8/1
Source
Ore Geology Reviews
Volume
111
Pages
102945
Publisher
Elsevier
Description
Canadian Malartic is a large-tonnage, low-grade Archean gold deposit (16.3 Moz, 1.08 g/t Au) located in the Abitibi region of Québec, Canada. A large part of the mineralization is hosted in the Pontiac Group metasedimentary rocks, which consist of mudstones to greywackes at upper greenschist to amphibolite facies. In exploration and production environments, these lithologies are challenging to characterize by conventional core logging methods, while in a research setting thin section-sized samples (2 cm × 4 cm) do not capture the full extent of mineralogical variability, which can extend from centimeters to meters away from mineralized zones. Here, high-resolution hyperspectral imagery (0.2–1.0 mm/pixel) in both shortwave infrared (SWIR, 1000–2500  nm) and longwave infrared (LWIR, 8000–12000 nm) is acquired for over two thousand meters of drill core, and is used to visualize changes in …
Total citations
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