Low Sulphidation Epithermals – typical properties:

• Gold and silver mineralisation, can get native silver
• Colloform, banding, sometimes get black ginguro
• Vertical or almost vertical typically quartz veins
• Often strike NW/SE or NE/SW (observation)
• Base of a boiling zone, mineralisation to surface
• Can have barren quartz veins on surface
• Can get parallel veins up to ~2.5 – 5km apart (observation)
• Breccias, No 1 target brecciated colloform
• If base metals, high sulphidation & probably refractory (note if As is crystalline, should be non-refractory)
• Patterns – NWSE, Lambdas
• Parallel – possibly 2.5 to 5km apart & sinters
• Rolling/offset
•  - Cerro Vanguardia determined by endowment
•  - drilled after 1200 diamond holes
•  - can get gaps and offset
•  - also seen Cerro Moro and Cracow
• Terry Leach Table
• Ground Conditions