| |
The Nam San copper-gold deposit was discovered in 2011 and is a likely blind extension of the Permian age Phu Kam structurally deformed porphyry/skarn copper-gold deposit.
The Nam San mineralisation is hosted within a dominantly sericite altered schist unit located to the north of the current Phu Kam open pit operation and is overthrust by an allochthonous barren cover sequence of limestone, granite and sandstone. Reinterpretation of the Phu Kam geology developed the concept of a possible telescoped porphyry copper-gold system at depth. Initial drilling intersected remobilised copper mineralisation in a basal conglomerate, confirming the concept. A reconnaissance vector array induced polarisation (IP) survey identified a deep chargeability anomaly from which a drilling target was developed from 3D inversion modelling of a detailed follow- up dipole-pole-dipole anomaly. Drilling of the chargeability anomaly intersected the blind Nam San copper-gold mineralisation beneath the thrusted cover sequence.
The key discovery parameters are the result of an integrated exploration program that included reinterpretation of the local stratigraphy, which developed the concept of a deep blind ore body, IP surveys capable of penetrating through barren cover and a commitment to a deep directional drilling program to test these concepts and targets. The inferred resource remains open at depth, and further assessment will most likely be through underground development.
When: 9th June, 5:30 pm for 6:00 pm
Where: Theodore Club, 333 Adelaide Street, Brisbane 4000. Meet in the bar on the first floor.
Cost: Entry by requested donation. Cash bar, finger food provided.
RSVP: Not required. Join us for what will be an interesting talk and great networking opportunity.
