• De Grey Mining discovered polymetallic volcanogenic massive sulphide-style (VMS) mineralisation within the Tabba Tabba Greenstone Belt at Turner River in October 2005. This discovery was the first of its kind in the Central Pilbara.
  
• De Grey's tenements cover 75km strike length of the Tabba Tabba Greenstone Belt.
  
• Six individual prospects have been defined by significant zinc-silver-lead-gold intersections in RC drilling over a 20km strike length at Orchard Tank and Tabba Tabba.
  
• VMS exploration at Turner River is in various stages, from advanced (Orchard Tank) to the untested western portion of the greenstone belt, therefore much potential remains.

Please click on each prospect (blue, yellow, green or grey dot) on the image below for more information about the individual prospects.

Turner River Project Location Map

Turner River Base Metal Prospects - Orchard Tank, Acacia, Discovery, Hakea, Cassia

The figure below shows RC and Diamond drilling results over a 6km strike length from Orchard Tank to Hakea in comparison with 'Golden Grove' a typical VMS deposit.
Note: Click on the figure below to view a larger PDF version.

Orchard Well RC and Diamond drilling results in comparison with a typical VMS Deposit

Regional Base Metal Exploration

• VMS exploration at Turner River has predominantly focused on the 18 kilometre strike length of felsic volcanic stratigraphy between Hakea and Tabba Tabba.
  
• A variety of geophysical surveys including; gravity, Induced Polarisation (IP) and Versatile Airborne Electro Magnetic (VTEM) were completed during 2007 to progress the regional evaluation of the project and look for additional occurrences of VMS mineralisation.
  
• Data obtained from these surveys, together with data from existing aeromagnetic surveys, geological mapping, new augered soil sampling and initial reconnaissance RAB drilling have already identified new regional targets coincident with felsic volcanic horizons including new zones of base metal anomalism near surface.
  
• Although low level, these shallow results are encouraging as they indicate the potential occurrence of additional zones of VMS mineralisation in as yet only sparsely tested areas of the Turner River Project.
  
• An additional 26km of the Tabba Tabba Greenstone Belt within De Grey's leases lies beneath shallow transported cover and, in terms of VMS potential, remains completely untested by drilling.