Silver-Lead-Zinc Vein Geochemistry and Mineralization Ages from Keno Hill

A methodology establishes metal zoning patterns using whole rock geochemistry from run-of-mine samples across 3 main deposits and 6 veins in the Keno Hill-Galena Hill mining camp. The model's essential character is defined by analyses of Ag, Pb, Zn, Ca, and the Zn/Ag ratio, with additional detail from Hg, Co, and Ni. A companion K-Ar age study indicates mineralization occurred approximately 87±2 million years ago.

Use Cases

• Model metal zoning patterns by analyzing the 'rearranged' profiles of Ag, Pb, and Zn relative to decreasing silver content.
• Use the Zn/Ag ratio and Ca analyses to develop a quantitative exploration model for evaluating proximity to oreshoots.
• Correlate Hg, Co, and Ni analyses with vein mineralogy to add detail to the established zoning framework.
• Integrate the ~87±2 Ma K-Ar age determination with geochemical data to contextualize the timing of Ag-Pb-Zn vein formation.

Strengths

• Model derived from analytical results spanning 3 main deposits (Keno, Husky, No Cash) and 6 veins.
• Includes a specific mineralization age determination of approximately 87±2 million years.
• Methodology designed for application across more than 60 known deposits in the mining camp.

Limitations

• Sample row count and specific column features are not provided in the input.
• Descriptions note that detail from Hg, Co, and Ni analyses can be 'ambiguous'.
• Data is presented in HTML format, not a structured tabular file ready for direct analysis.

Provenance

Source

Government of Yukon

Collection Method

Whole rock geochemical analysis of run-of-mine samples and K-Ar age determinations from stockwork zones.

Time Range

Mineralization age ~87±2 Ma (Cretaceous).

Freshness

null

Geography

Keno Hill-Galena Hill mining camp, Yukon Territory, Canada.