Guardian Metal Resources plc’s rock chip sample assays have confirmed a “significant copper-molybdenum footprint” at the 1.5 km2 Porphyry South zone within the Pilot Mountain tungsten project in Nevada, USA.
TESTING
Sampling from outcrop showed “highly elevated” copper and molybdenum concentrations across Porphyry South, delineating a “sizeable” area of greater than 500 parts per million copper.
Chief executive officer Oliver Friesen said that the new results gave further evidence of a “much larger mineral system” than previously understood at Pilot.
The company also mapped and sampled a one-kilometre long section of the ‘Breccia Ridge Zone’, with 15 rock chip assays of >1,000 ppm copper and up to 20,500 ppm (2.05 %) copper.
Guardian has completed plans to extend the existing three-dimensional induced polarisation (3D IP) geophysical survey to cover the entire Porphyry South area.
The survey is due to begin shortly with results used to finalise drill targets for porphyry style copper-molybdenum mineralisation.
Results will be integrated with geological field observations from continuing exploration, to help refine drill targeting.
An initial drilling programme might follow completion of all skarn-related tungsten-focused drilling.
Mr Friesen added: “While our main work continues to be centred on advancing the tungsten-copper-silver-zinc skarns, the results thus far from this porphyry- focused study increasingly point to a porphyry environment worth investigating further.
“The data not only expands the interpreted footprint of Porphyry South but also strengthens the case for a complex multi-metal system at depth.
“With clear indications of molybdenum and copper fertility, we see significant merit in testing these porphyry targets once the tungsten-focused drilling programme is completed.”