LINDEMAN’S BORE

The Lindeman’s Bore project, on granted exploration licence EL 25307, is 380km southwest of Katherine, situated on Limbunya Station near the community of Kalkarindji. Proto Resources holds the project in joint venture with two geologists, having the right to 80% of the project upon the drilling of a deep (over 600m) diamond hole.

The project area is interpreted to contain a portion of the regionally extensive Antrim Plateau Volcanics (APV). This Continental Flood Basalt Province is considered prospective for “Norilsk-style” magmatic nickel copper-PGE mineralisation.

The prospectivity of the APV is based on analogies between the geochemistry of the continental flood basalts that host the giant Norilsk deposits in Russia and the APV. These analogies include depletion of Ni, Cu and PGE in the APV and evidence of crustal contamination of the volcanics.

At Lindeman’s Bore the APV has been intruded through the reactive Victoria River and Birrindudu basin sediments which provide an ideal space for the development of shallow, co-magmatic intrusions that are the likely loci for separation, entrapment and concentration of a dense sulphide melt.

Work by Proto Resources to date on EL 25307 has defined a large, coincident circular “bullseye” magnetic/gravity geophysical anomaly. Proto Resources considers this anomaly may represent a feeder dyke to the APV. The anomaly occurs near the centre of an antiform and in proximity to sediments of the Limbunyah Formation. The interface between the intrusive dyke and the host sediments is considered by Proto Resources to be a highly prospective zone for nickel sulphide mineralisation.

During September 2008 Proto completed a further 132 line km of ground magnetic geophysical surveys over the project area to augment previous geophysical surveys over the anomaly and to establish the likely depth of the geophysical anomaly for drill planning. Detailed modelling of the coincident magnetic/gravity anomaly by Southern Geoscience suggests three stacked blocks dipping to the south at depths of between 300 to 450 metres below surface. These blocks are interpreted to represent stacked sills which may potentially host sulphide mineralisation.

In order to test this conceptual target, Proto is initially planning a single deep drill hole for which the Northern Territory government is funding $100,000.

As stated above, the geological concept for this project is strong in that there are striking
analogies between the geological and geochemical settings of the world’s largest concentrations of magmatic Ni-Cu-PGE sulphides at Norilsk in Russia, and those of the Cambrian continental flood basalts of northwest Australia.

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