Northern Toobally Lake Reconnaissance Geology and Geochemistry

A geological reconnaissance report describes the Toobally fault and surrounding rock formations in northern Toobally Lake, Yukon. The report identifies a newly proposed Toobally Formation diamictite estimated at 1800 m thick and an 850-m-thick basalt succession. It was published by the Government of Yukon and last updated in April 2026.

Use Cases

• Structural analysis based on the described north-trending Toobally fault and fold couplet
• Stratigraphic correlation based on proposed unit names and correlations with Ice Brook and Vreeland formations
• Geochemical interpretation based on basalt chemistry indicating rift volcanism in a within-plate setting
• Glacial deposit modeling based on the thick, newly recognized glaciomarine diamictite unit

Strengths

• Report includes specific thickness estimates for geological units, such as a 1800 m thick diamictite and an 850 m thick basalt succession
• Provides detailed lithological descriptions and structural interpretations for a defined geographic area

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment

Provenance

Source

Government of Yukon

Freshness

Last updated 2026-04-17 15:43:01.015231; freshness should be verified

Geography

Northern Toobally Lake (95D/8), southeast Yukon, Canada