Lower Jurassic Petroleum System Polygons in Western Canada

Lower Jurassic Petroleum System GIS data consists of polygon features from the Geological Atlas of the Western Canada Sedimentary Basin. Shapefiles were created by the Alberta Geological Survey in the mid-1990s and later edited in 2005-2006 to correct and attribute the data. This dataset represents Figure 19 from Chapter 31 of the Atlas, focusing on petroleum generation and migration.

Use Cases

• Map petroleum system extents using polygon boundaries for regional resource assessment.
• Analyze spatial relationships between source rocks and reservoirs using attributed polygon features.
• Integrate polygon data with other geological layers for basin modeling and migration pathway studies.

Strengths

• Data originates from the authoritative Alberta Geological Survey.
• Polygon features were consolidated and attributed in a 2005-2006 editing process.

Limitations

• Underlying digital files were created in the mid-1990s, potentially reflecting outdated interpretations.
• Specific row counts, column names, and sample data are unavailable for verification.

Provenance

Source

Government of Alberta, Alberta Geological Survey.

Collection Method

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

Time Range

Data reflects the geological Lower Jurassic period; creation date mid-1990s.

Freshness

Last platform update was 2026-03-04, but core data is from mid-1990s with 2005-2006 edits.

Geography

Western Canada Sedimentary Basin.