Whitelaw Isopach Thickness Map for Devonian Wabamun Group

Polygon GIS data represents the thickness (isopach) of the Whitelaw unit within the Devonian Wabamun Group. The dataset was created by the Alberta Geological Survey from mid-1990s digital files and later edited in 2005-2006. It serves as a reference from Chapter 13 of the Geological Atlas of the Western Canada Sedimentary Basin.

Use Cases

• Map subsurface stratigraphy by analyzing polygon features representing isopach thickness contours.
• Integrate isopach polygons with other geological shapefiles from the Atlas to model basin architecture.
• Calculate approximate rock volume for the Whitelaw unit using the attributed thickness values within each polygon.
• Conduct spatial analysis on depositional trends by examining the distribution and shape of isopach polygons.

Strengths

• Data originates from the authoritative Alberta Geological Survey.
• Polygon features have been corrected and consolidated into single files by feature type.

Limitations

• The underlying data was created in the mid-1990s, potentially using outdated methods.
• Specific column names, attribute details, and total row/polygon count are unknown.
• Data is limited to a single figure (Figure 16) from a specific chapter of a larger atlas.

Provenance

Source

Alberta Geological Survey, Government of Alberta.

Collection Method

Produced from archived digital files, then edited to correct, attribute, and consolidate.

Time Range

Data creation mid-1990s; editing 2005-2006.

Freshness

Last updated on the platform was 2026-03-04, though the core data is from the 1990s/2005-06.

Geography

Western Canada Sedimentary Basin, specifically the area covered by the Whitelaw Isopach map.