Location
The Pinnacle Well Project comprises four granted exploration licences covering an area of 128km2 and is located approximately 25km NNE of Leonora in the northern goldfields of Western Australia. The Project is considered primarily prospective for intrusive related and structurally controlled vein hosted gold mineralisation typical of Archaean greenstone belts within the Yilgarn Craton, along with VMS zinc-copper-lead-silver mineralisation. The region is host to a number of significant gold deposits including Gwalia, Tarmoola, King of the Hills, along with base metal deposits at Teutonic Bore, Bentley and Jaguar.
Exploration – Geology
Early exploration over the Project in the 1970-80s focussed initially on molybdenum associated with the northern greisen, along with VMS base metals associated with the andesite-felsic volcanic package in the west. Exploration during 1990-2000s mainly targeted base metals, along with an increase in gold work undertaken by a number of companies.
The Project geology is dominated by a mixed package of andesite, mafic/felsic volcanics and sediments in the south and syenogranite, granite and granodiorite to the north. Large regional NW-SE trending structures occur in the southwestern part of the Project. Reprocessing of aeromagnetic data has assisted with the interpretation of regional structural corridors aimed at identifying potential mineralising fluid pathways. Evidence for significant hydrothermal fluid movement within the Project includes an extensive zone of pyrophyllite alteration in the central/south and greisen alteration on the syenogranite margin to the north. The structural interpretation has been integrated with all exploration datasets to support ongoing target generation.