Oil Alteration Polygons For Western Canada Sedimentary Basin

Mid-1990s data edited in 2005-06 provides geospatial polygon features illustrating oil alteration zones within the Western Canada Sedimentary Basin. The dataset was created by the Alberta Geological Survey and consolidated from archived digital files as part of a geological atlas chapter. It represents a specific figure (Figure 25) from the chapter on Petroleum Generation and Migration.

Use Cases

• Map spatial extents of oil alteration zones using polygon boundaries for regional geological studies.
• Analyze the relationship between oil alteration and other basin features by joining polygon attributes with related GIS layers.
• Model petroleum generation history by incorporating polygon-based alteration data into basin simulation workflows.

Strengths

• Data consolidated into single files by feature type and figure for easier management.
• Polygon features were corrected and attributed during a dedicated 2005-06 editing process.

Limitations

• Data originates from digital files created in the mid-1990s, potentially lacking contemporary measurement techniques.
• Specific column names, attribute details, and row counts are unknown, limiting immediate analytical utility.

Provenance

Source

Alberta Geological Survey, Government of Alberta.

Collection Method

Shapefiles produced from archived digital files, later edited to correct, attribute, and consolidate.

Time Range

Data reflects geological conditions as interpreted in the mid-1990s.

Freshness

Source files are historical (mid-1990s creation, 2005-06 edits), though platform record was updated in 2026.

Geography

Western Canada Sedimentary Basin.