Heavy Oil Migration System Polygons for Western Canada Sedimentary Basin

Mid-1990s GIS polygon data depicts heavy oil migration systems within the Western Canada Sedimentary Basin. The Alberta Geological Survey created the original digital files, which were later corrected and attributed in 2005-2006. This dataset represents Figure 21 from the Geological Atlas chapter on petroleum generation and migration.

Use Cases

• Map the spatial extent of heavy oil migration systems using polygon features.
• Analyze the relationship between migration systems and other basin features by joining on spatial location.
• Model petroleum generation and migration history using attributed polygon data from the Geological Atlas.

Strengths

• Data consolidated into single files by feature type for easier analysis.
• Polygon features were edited and attributed during a 2005-2006 correction process.

Limitations

• Original data created in the mid-1990s, potentially using outdated methodologies.
• Specific row counts, column names, and sample data are unavailable for assessment.

Provenance

Source

Alberta Geological Survey.

Collection Method

Shapefiles produced from archived digital files created by the survey.

Time Range

Data originally created mid-1990s, edited 2005-2006.

Freshness

Last updated 2026-03-04, though underlying data is historical.

Geography

Western Canada Sedimentary Basin.