The Copper Hills Project E45/6437 (221.4 km2) is in the southern section of the Palaeo- to Neo-Proterozoic Paterson Orogen in Western Australia. The Paterson Orogen hosts a number of atypical, ‘world-class’ mineral deposits/mines, including the Kintyre Uranium deposit, the Nifty Copper Mine, the Telfer gold mine, the Winu Copper-Gold deposit and the Havieron Gold-Copper deposit (Figure 1). A review of historical data identified numerous potential prospect areas.
Figure 1. Tenement Locati is shown on the GSWA regional aeromagnetic image
Historical rock chip assay results of 2376 g/t Au, 3424 g/t Pt, 4904 g/t Pd, 1387g/t Ag and 20.9% Cu have been recorded from sampling of mineralised outcrops at the main PM Prospect and it is reported that secondary copper minerals occur over a semi-continuous strike length of more than two kilometres (refer Wamex report A42764). The assays of rock chip samples (from old pits and trenches over a 1km strike) average 14.1% Cu and 26.6 g/t Ag, with peak values of 48.9% Cu and 115 g/t Ag (refer Wamex report A105133 and ASX release 21 August 2024).
Geophysical Consultants Core Geophysics has carried out three-dimensional magnetic inversion modelling over magnetic features of interest within the southeast of the Copper Hills Project using open file 1986 Canning Aeromagnetic survey data (refer ASX release 27 May 2024). Recently the Company has completed gravity survey covering magnetic and historical AEM target areas (Figure 3). The ground gravity surveys have defined three significant responses (Mag anomalies 2 &3 and AEM anomaly 4) (Figure 2) and these targets are considered prospective for Cu-Au and base metals mineralisation.
Figure 2. Copper Hills Project gravity survey locations including magnetic and historical AEM target anomalies over regional aeromagnetic imagery.
Figure 3. Gravity anomalous responses over the target areas of interest.