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First vertical derivative of the Bouguer gravity anomaly, airborne gravity survey of the Patterson Lake area, Athabasca Basin,
Alberta and Saskatchewan, parts of NTS 74-E, F, K and L; Boulanger, O; Kiss, F; Tschirhart, V
. Geological Survey of Canada,
Open File 8534, 2019, 1 sheet,
https://doi.org/10.4095/313526 
Open
Access