Yukon Surficial Geology Maps with 80% Territory Coverage

Over 195 standardized surficial geology maps compiled by the Yukon Geological Survey provide approximately 80% coverage of the territory. The compilation includes polygon, line, and point features capturing attributes like surficial material, texture, age, and geomorphological processes. Maps range in scale from 1:250,000 to 1:10,000 and are used for land-use applications including mineral exploration and permafrost modeling.

Use Cases

• Classify landforms and assess terrain stability using polygon attributes like surficial material and surface expression.
• Map glacial limits and features such as eskers and moraines from the compiled line feature data.
• Locate permafrost features like pingos and thermokarst depressions for climate impact studies using point feature data.
• Analyze map publication metadata from the map index, including author and map scale, for historical research completeness.

Strengths

• Compilation of over 195 individual maps into a standardized GIS format.
• Provides approximately 80% spatial coverage of the Yukon territory.
• Preserves original feature descriptions while converting them to a standardized terrain classification system.
• Includes polygon, line, and point features capturing diverse geological and geomorphological attributes.

Limitations

• Spatial overlap between maps at different scales (1:250,000 to 1:10,000) may require resolution for specific analyses.
• Data originates from multiple agencies over time, potentially introducing inconsistencies in original mapping methodologies.

Provenance

Source

Yukon Geological Survey, compiling original maps from the Geological Survey of Canada, Yukon Government, universities, and others.

Collection Method

Compilation and standardization of existing surficial geology maps into a unified GIS format.

Time Range

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Freshness

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Geography

Yukon Territory, Canada, with approximately 80% coverage.