Minto and Williams Creek Copper-Gold Deposits in the Yukon

Two Early Jurassic copper-gold deposits, Minto and Williams Creek, are hosted in 198-197 million-year-old plutonic rocks within the Granite Batholith. The dataset includes geochemical analyses, geobarometry indicating emplacement depths greater than 9 km, and Ar-Ar dating of alteration minerals. It was published by the Government of Yukon and last updated on April 17, 2026.

Use Cases

• Modeling the formation depth of porphyry deposits based on geobarometry data indicating >9 km emplacement.
• Analyzing copper-gold ratios to understand supergene mobility and enrichment processes between deposits.
• Classifying deposit types and tectonic settings using hornblende geochemistry from plutonic host rocks.
• Correlating mineralization events with intrusive phases using U-Pb and Ar-Ar geochronology data.

Strengths

• Includes precise geochronology data with U-Pb ages of 198-197 Ma and Ar-Ar ages of 182 Ma.
• Geobarometry provides a specific constraint on formation depth (>9 km).
• Comparative analysis of two deposits (Minto and Williams Creek) highlights variations in supergene copper mobility.

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 Carmacks Copper Belt in western Yukon.

Provenance

Source

Government of Yukon | Gouvernement du Yukon

Collection Method

Likely contains field observations, geochemical studies, and geochronological analyses.

Time Range

Early Jurassic (approximately 198-197 million years ago) with a later alteration event at 182 Ma.

Freshness

Last updated 2026-04-17 15:39:11.365644; freshness should be verified.

Geography

Minto and Williams Creek deposits, Carmacks Copper Belt, western Yukon, Canada.