Costigan-Big Valley Isopach and Lithofacies GIS Line Features

Line features represent the thickness and rock composition of the Devonian Wabamun Group in Alberta. Shapefiles were created by the Alberta Geological Survey in the mid-1990s and later edited in 2005-2006. This GIS dataset is part of a geological atlas documenting the Western Canada Sedimentary Basin.

Use Cases

• Map sediment thickness (isopach) variations across the Costigan-Big Valley region using line feature attributes.
• Analyze spatial relationships between lithofacies types and structural features within the Wabamun Group.
• Integrate isopach and lithofacies line features with other subsurface data layers for 3D geological modeling.
• Study the depositional environment and basin history by examining the distribution of lithofacies units.

Strengths

• Data was corrected, attributed, and consolidated into single files in 2005-2006.
• Derived from authoritative source files created by the Alberta Geological Survey.

Limitations

• Original data was created in the mid-1990s, which may limit its modern accuracy.
• Specific row counts, column details, and sample data are unavailable for assessment.

Provenance

Source

Alberta Geological Survey, Government of Alberta.

Collection Method

Produced from archived digital files, edited and consolidated into shapefiles.

Time Range

Data reflects the geological period of the Devonian Wabamun Group.

Freshness

Data was last updated on the platform in March 2026, though the underlying data is older.

Geography

Western Canada Sedimentary Basin, specifically the Costigan-Big Valley area in Alberta, Canada.