wheat paddocks in Victoria

Mt Willoughby – IOCG Project (EL 6332), South Australia (Petratherm, 100%)

The Mt Willoughby Project is readily accessible, located along the Stuart Highway (sealed), approximately 40km north-west of Coober Pedy.

Multiple semi-coincident, magnetic and gravity anomalies, have been identified over the Mt

Willoughby project area. These geophysical features have potential to be due to hydrothermal iron-oxide systems.

A large gravity anomaly within central EL 6332 is at least 6 milligals in magnitude. In comparison, the original Prominent Hill gravity target was approximately 4.5 milligals in magnitude.

Mt Willoughby

Regional pseudo-colour residual gravity image with 1 milligal gravity contours shown over EL 6332 (compiled from Sth. Aust. Government data). Historical drill hole collar positions shown as yellow dots. Several large gravity features are apparent, requiring follow up infill gravity surveying.

Mt Willoughby
Reduced to pole pseudo-colour aeromagnetic image (compiled from Sth. Aust. Government data) and 1 milligal spaced gravity contours (white) over the large central gravity anomaly on EL 6332. Note offset between peak of the magnetic and gravity anomalies. The gravity anomaly is at least 6 milligals in magnitude. As way of example the original Prominent Hill gravity target was approximately 4.5 milligals in magnitude. Historic drill hole (yellow) drilled to east intersected basement at 188 metres depth and open file government records report intersecting hydrothermally overprinted, metamorphosed and metasomatised, fine to medium grained mafic to intermediate igneous rock.