The Redcastle Project lies 62km east-southeast of Leonora and 25km due south of the Minara Nickel Operation. Access is via the Leonora to Laverton sealed road, 60km east of Leonora and thence 25km south via the Butcher Well graded haul road that is positioned 5km to the east of the Project. The Murrin Murrin to Yundamindra road and numerous other unsealed tracks allow easy access to the tenements.
Previous exploration has been somewhat disjointed and has consisted of various phases of geological mapping, surface sampling (dumps, tailings and soil geochemistry), airborne geophysical surveying, interpretation and targeting, and several phases of RAB and relatively shallow RC drilling and assaying. Previous explorers have included Hill Minerals in the 1980s and more recently Terrain Minerals. Terrain withdrew from the project in late 2008. None of the previous work has been comprehensive.
The Redcastle Project has had some sporadic exploration with some encouraging results. None of the drilling has been deep, with most of the holes being drilled to depths of less than 50 metres. Potential for the discovery of additional mineralisation below 50 metres from surface must be considered to be high. BRC has reviewed the previous work completed by the various explorers and concludes that the work was carried out to international industry standards applicable of the time.
The company has developed a two year exploration budget which is designed to better explore the project than in the past. The aim is the discovery and definition of open pitable gold resources that could lead to a development opportunity. The proposed work and budget has been reviewed by the author and is considered to be well thought out and appropriate for the project.
The Redcastle Project tenements consist of a mix of one granted mining lease, and various prospecting licences. The area has been held for a number of years by prospectors.
The Redcastle area is located in the central portion of the Archaean Norseman to Wiluna greenstone belt. This belt hosts numerous world class gold, nickel, lithium, rare earth and copper-zinc deposits. The rocks range from ultramafic to felsic volcanics, plus sedimentary rocks of all types, and later granitoids and dolerite dykes. These ancient rocks have been subjected to several periods of folding and faulting, resulting in a deformed lithological package.
Gold mineralisation in the region occurs in a variety of settings, commonly structurally controlled and near rocks of contrasting strength or mineral composition. Very commonly gold mineralisation is controlled by shear zones, with mineral alteration such as chlorite, sericite, pyrite, and quartz veining. These zones can have dips of any angle, but are commonly steep. The most famous of the mineralised structures at Redcastle is the Redcastle Reef. This is a gently curved structure occurring along the axial plane of a near east west fold that has an extensive strike length (almost 5km). This structure is crossed almost at right angles by the Redcastle Anticline.
The Redcastle Reef is a steep dipping zone of chlorite alteration that has several sub parallel zones of mineralisation. Many of these remain relatively surprisingly unexplored.
The company has developed a two year exploration budget which is designed to better explore the project than in the past. The aim is the discovery and definition of open pitable gold resources that could lead to a development opportunity. The proposed work and budget has been reviewed by the author and is considered to be well thought out and appropriate for the project. The program and budget is presented below.
