Southern Big Salmon Range Geology with Structural Panels and Fault Boundaries

A newly mapped area centred on the Boswell River in south-central Yukon contains penetratively deformed rocks of the Yukon-Tanana terrane and Semenof block, and unfoliated Jurassic-Cretaceous intrusions. The dataset likely contains geological observations and interpretations from the Government of Yukon, last updated in April 2026. It is divided into three structural panels by the Little Bear and Sidney Creek faults, which may define tectonic boundaries.

Use Cases

• Map tectonic boundaries based on descriptions of the Little Bear and Sidney Creek faults.
• Analyze the distribution of mineral deposits based on mentions of the Red Mountain Mo porphyry deposit.
• Study metamorphic and deformation history based on descriptions of zircon growth and facies.
• Correlate geological units based on provisional correlations with the Moose formation.
• Model the age relationships of rock units based on crosscutting intrusions and fossiliferous limestone.

Strengths

• Includes detailed geological descriptions of multiple rock successions and structural panels.
• Provides temporal context with references to specific geological periods like Early Mississippian, Permian, Cretaceous, and Jurassic.
• Identifies specific geological features like the Red Mountain Mo porphyry deposit and the Sawtooth stock.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Freshness should be verified as the last update date is projected for 2026.

Provenance

Source

Government of Yukon

Collection Method

Likely contains geological mapping and field observations.

Time Range

Covers geological periods from Early Mississippian to Cretaceous.

Freshness

Last updated 2026-04-17 16:01:20.982557

Geography

Southern Big Salmon Range, south-central Yukon (parts of NTS 105C/13,14, 105F/4 and 105E/1)