A two kilometre long target zone for high grade shoots of epithermal gold-silver-base metal mineralisation has been identified at Impact Minerals’ Clermont gold project located in Queensland.
|Diamond drill core from 230 metres downhole in RTIPT016. ©Impact Minerals|
The prpject, which is 100 per cent owned by Impact, is host to world class gold deposits such as Pajingo (Vera-Nancy) (>5 Moz of gold produced), Mt Leyshon (>3 Moz) and Mt Wright (>1 Moz) (Figures 1 and 2).
The target has been identified from a pattern of strong metal zonation in drill hole assay data over at least 4 kilometres of strike of the Retro Fault Zone and a stand out drill intercept of high-grade gold-silver-base metals at the southern edge of the target.
The metal zonation is characteristic of epithermal mineralisation directly related to magmatic fluids released from a porphyry intrusion of intermediate composition and similar to the zonation associated with the world class Pachuca polymetallic mining district in Mexico.
In addition, the vein system has a strong structural control and the focus of future drilling will be to identify thicker high-grade shoots along the Retro Fault Zone.
This new interpretation is mostly based on new assay data from a drill programme completed in late 2018 which included the first diamond drill hole and the first full suite multi-element assays at the project.
Until this programme little was known in detail about both the nature of the gold-silver-base metal mineralisation and also the structural controls on the quartz veins.
The drill programme delivered two breakthrough outcomes for the project:
1. A very encouraging high-grade gold-silver-base metal intercept at Retro Extended in the diamond drill hole with confirmation of epithermal textures and the nature of the sulphide mineralisation.
2. Recognition that the high-grade intercept lies at the southern end of a two-kilometre-long target zone for further high-grade mineralisation identified in a distinctive pattern of metal zonation along the RFZ.