Dunvegan Paleogeography GIS Map of Alberta

Polygon features illustrate the paleographic evolution of the Western Canada Foreland Basin during the Dunvegan stage. Shapefiles were created by the Alberta Geological Survey in the mid-1990s and edited in 2005-2006. This data is part of the Geological Atlas of the Western Canada Sedimentary Basin.

Use Cases

• Analyze polygon features representing paleogeographic units to model ancient depositional environments.
• Integrate GIS layers with subsurface well data using shared geographic attributes for basin analysis.
• Map the spatial extent of Dunvegan sedimentary facies for resource exploration assessments.

Strengths

• Data consolidated from archived files into single files by feature type for easier use.
• Edited and corrected over a period from 2005 to 2006 to improve attribute accuracy.

Limitations

• Original digital files were created in the mid-1990s, making the underlying data potentially stale.
• Specific row counts, column details, and spatial resolution are not provided.

Provenance

Source

Alberta Geological Survey, Government of Alberta.

Collection Method

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

Time Range

Represents the Dunvegan stage (Cretaceous period).

Freshness

Last platform update was 2026-03-04, but core data is from 1990s with 2005-06 edits.

Geography

Western Canada Sedimentary Basin, primarily Alberta, Canada.