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The SKUA-Gocad<\/SPAN><\/SPAN>TM<\/SPAN><\/SPAN>surface object, used to produce the downloadable structure contours, was modelled using the following data. <\/SPAN><\/SPAN><\/P>

  1. Drillhole information (>11 500 drillholes)<\/SPAN><\/SPAN><\/P><\/LI>

  2. Depth information from provincial lake sediment data (>14 000 lake depths)<\/SPAN><\/SPAN><\/P><\/LI>

  3. Outcrop data (>4600 outcrops) \u2013 zero edges for Quaternary material<\/SPAN><\/SPAN><\/P><\/LI>

  4. Lake sediment, bathymetric and seismic data points (~130 000) from industry assessment files (SMAD database)<\/SPAN><\/SPAN><\/P><\/LI><\/OL>

    Outcrop data inside the Athabasca basin boundary comes from a compilation of outcrop polygons from various mapping projects and industry reports; the compilation of outcrop polygons is available on GeoAtlas. Outcrop data from outside the Athabasca basin boundary, includes bedrock polygons from 1 million-scale compilation maps from Alberta (Fenton et al., 2013) and Saskatchewan (Simpson, 1997) were used. These bedrock regions, outside the basin, may have sporadic or thin (generally <2 m) Quaternary cover; however, the modelling of this surface assumed there was none.<\/SPAN><\/SPAN><\/P>

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