Pilbara Gold Project

De Grey’s 100% owned Pilbara Gold Project is located 60km south of Port Hedland in the Pilbara region of Western Australia, and covers an area of 980 sq km.

About the Pilbara Gold Project

The project hosts both gold and base metal resources, in addition to numerous exploration targets. De Grey is assessing potential for a standalone central processing plant fed by satellite open pits.

The project is well served by infrastructure, since it is close to the regional centre of Port Hedland, and is traversed by the Great Northern Highway, a gas pipeline and two railway lines.

The project consists of the following key prospects:

DepositCommodity
WinginaGold
Mt BerghausGold
AmandaGold
DiscoveryGold-Silver (oxide), and Zinc, Lead, Silver, Gold (sulphide)
Orchard TankGold-Silver (oxide), and Zinc, Lead, Silver, Gold (sulphide)

Total resources of 406,000oz gold have been defined at these prospects. For further information on resources click here.

Deposits lie in the Archaean-Proterozoic Pilbara Craton in the northwest of Western Australia. Gold mineralisation is hosted within sheared and deformed sedimentary and volcanic lithologies.

Wingina Well, the largest of the gold deposits, hosts gold mineralisation within a brecciated and altered chert/BIF horizon, with the orebody averaging 17m thick. Weathering is typically to a depth of 100m but can extend up to 200m deep in places. The oxide portion of Wingina Well has been extensively tested with RC and diamond drilling. There is evidence of high grade plunging shoots beneath the oxide mineralisation, which will be investigated by deeper drilling.

At Amanda and Mt Berghaus deposits, gold mineralisation is hosted within quartz veining and stockworks developed within sediments. Weathering extends to at least 20-30m below surface.

Discovery and Orchard Tank comprise VMS-style mineralization, with high zinc and lead grades in addition to gold and silver. Significant oxide gold mineralisation has been defined in the weathered portion of the Discovery deposit.

Potential remains for extending known deposits along strike and at depth. In addition, numerous other exploration targets exist on the tenement package.