Sifton Range Volcanic Complex Geology in Yukon, Paleogene Era

The Paleogene Sifton Range volcanic complex comprises a 900-meter thick succession of intermediate to evolved lava and pyroclastic rocks deposited in a half-graben. The Government of Yukon provides this geological description, which includes intrusive alkali-feldspar granites dated at 57.5 Ma and details on post-Eocene uplift. The dataset was last updated on April 17, 2026.

Use Cases

• Modeling volcanic stratigraphy based on the described 900-meter thick succession.
• Analyzing crustal contributions in petrogenesis based on described large-ion lithophile element enrichments.
• Comparing intrusive rock mineralogy based on described modal mineralogy reflective of ambient pressures.
• Estimating post-Eocene uplift rates based on the described calc-silicate bed elevation constraint.

Strengths

• Description provides specific thickness (900 m) and age (57.5 Ma) for key geological units.
• Includes concrete geographic context (southwestern Yukon) and structural setting (northwesterly trending half-graben).
• Contains detailed petrogenetic indicators, such as anomalous enrichments in large-ion lithophile elements.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to open_canada.

Provenance

Source

Government of Yukon

Time Range

Paleogene era, with specific intrusive rock date of 57.5 Ma.

Freshness

Last updated 2026-04-17 15:52:39.470861; freshness should be verified.

Geography

Sifton Range volcanic complex, southwestern Yukon, Canada.