Exploration for and Pre-feasibility of mining Polymetallic Sulphides ...

Environmental – Exploration
• TRIAL MINING :
• In practice would only involve disturbing
1/20 th or 1/40 th of the resource.
• Accordingly the majority of the
mineralised environ is left undisturbed.
• Provides valuable data for State or ISA
upon which regulations be based before
any mining lease is granted.
• For cost reasons, elements
of trial mining may first be
conducted in another
environ eg land quarry or
a harbour channel.