Bedrock Geology of Dorsey Lake, Yukon at 1:50,000 Scale

Southern Yukon's Dorsey Lake area features bedrock geology mapped at a 1:50,000 scale. The layered rocks originated as continental shelf sediments overlain by volcanic arc successions, now forming the Yukon-Tanana terrane. The map was published by the Government of Yukon and last updated on April 17, 2026.

Use Cases

• Analyze tectonic terrane boundaries based on the described Yukon-Tanana terrane and its tectonic history
• Map geological units and contacts based on the Big Salmon Complex, Dorsey Complex, and Swift River Group elements
• Study sedimentary and volcanic rock successions based on the continental shelf sediments and volcanic arc successions described
• Interpret geological faults based on the inferred east-side-down normal fault between the Big Salmon Complex and Swift River Group

Strengths

• Geological map is at a detailed 1:50,000 scale
• Description provides specific geological context for the Yukon-Tanana terrane and its constituent complexes
• Data is published by the Government of Yukon, an authoritative source

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 the specific map area

Provenance

Source

Government of Yukon

Freshness

Last updated 2026-04-17 16:07:02.039348

Geography

Dorsey Lake area (NTS 105B/4), southern Yukon, Canada