Teslin Mountain Stratigraphy and Structure Maps for Middle Triassic-Middle Jurassic

Stratigraphic and structural relationships within Stikinia and overlap assemblages of the Whitehorse trough are investigated in the Teslin Mountain area, southern Yukon. The Government of Yukon produced this dataset, which focuses on the Middle Triassic Joe Mountain Formation and Upper Triassic Lewes River Group. It was last updated on April 17, 2026.

Use Cases

• Analyze subaqueous volcanism patterns based on descriptions of the aphyric basalt sequence in the Joe Mountain Formation.
• Model synvolcanic terrane exhumation and erosion based on descriptions of volcaniclastic deposition in the Lewes River Group.
• Study lateral and vertical lithological changes based on descriptions of complex facies variations in the Lewes River Group.
• Investigate the transition from arc volcanism to marine sedimentation based on descriptions of the latest stages of Stikinia and onset of the Whitehorse trough.

Strengths

• Dataset is produced by the Government of Yukon, an authoritative regional source.
• Description provides specific geological context for the Joe Mountain Formation and Lewes River Group.
• Last update timestamp (2026-04-17 15:40:34.608563) is provided.

Limitations

• Row count and column definitions are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic bias inherent to the specific Teslin Mountain study area.

Provenance

Source

Government of Yukon

Collection Method

Field mapping and analytical work, as described.

Time Range

Middle Triassic to Middle Jurassic

Freshness

Last updated 2026-04-17 15:40:34.608563; freshness should be verified.

Geography

Teslin Mountain area, southern Yukon, Canada