Lead Deposit Gossan Classification in Yukon Limestone

Government of Yukon research describes a gossan that led to a lead deposit discovery, classifying the limonite material into six distinct types based on physical properties. The study involved microscopic investigation of thin and polished sections to analyze samples lacking characteristic boxwork structures. The mineral deposits indicated by the limonite suggest a potential contact metamorphic origin involving tremolite and phlogopite.

Use Cases

• Classify gossan samples into six physical property types to identify mineral derivation sources like pyrite or galena.
• Analyze limonite solubility in dilute HCl to test its correlation with gossan type classification.
• Use microscopic data from thin and polished sections to study gossan samples lacking boxwork structures.
• Correlate gossan types with established classifications by Boswell and Blanchard for geological mapping.

Strengths

• Provides a detailed six-type classification system for gossan based on physical properties.
• Includes microscopic analysis of thin and polished sections for samples lacking visible structures.
• Correlates findings with established geological work by Boswell and Blanchard.

Limitations

• Sample size and row count are unknown, limiting statistical analysis.
• The underlying mineral deposits were not sufficiently exposed for detailed study, as noted in the description.
• Data is presented in HTML format, not a structured tabular dataset for direct analysis.

Provenance

Source

Government of Yukon

Collection Method

Geological field study and microscopic laboratory analysis of hand specimens.

Time Range

null

Freshness

Last updated March 25, -0026, indicating potential temporal staleness.

Geography

Yukon Territory, Canada