Bimodal Volcanic Rocks in Yukon's Tintina Trench

Central Yukon's Tintina Trench exposes bimodal Tertiary volcanic rocks in the Glenlyon, Grew Creek, and Ketza areas. Basalt and rhyolite are interbedded with coarse sedimentary rocks, preserved in grabens, and form various deposits and intrusions. The dataset is provided by the Government of Yukon and was last updated on April 17, 2026.

Use Cases

• Map bimodal volcanic rock distributions based on described exposures along the Tintina Trench.
• Analyze relationships between volcanic deposits and sedimentary rocks based on described interbedding.
• Investigate mineral exploration targets based on described gold-bearing chalcedony veinlets and associated alteration near rhyolite dykes.
• Model extensional basin formation based on the described geological setting of grabens and basins.

Strengths

• Description provides specific geological contexts for three areas: Glenlyon, Grew Creek, and Ketza.
• Identifies specific rock types (basalt, rhyolite) and deposit forms (flows, pyroclastic, intrusions).
• Links mineralization (gold-bearing chalcedony) and alteration types (argillic, silicification) to specific volcanic features.

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, focusing solely on central Yukon.

Provenance

Source

Government of Yukon

Freshness

Last updated 2026-04-17 16:00:23.371436; freshness should be verified.

Geography

Central Yukon, specifically the Tintina Trench in the Glenlyon, Grew Creek, and Ketza areas.