Buxton has complete two main phases of calcrete sampling which has identified large low-level gold anomalies. A web page update for this project is under construction and for progress report refer to the latest quarterly reports.
The Project area is located 90 km north-northeast of Esperance and approximately 60 km west of the sealed Kalgoorlie-Esperance highway and rail line. It consists of three exploration licence applications covering 411.6 km2.
The principle target is gold mineralisation associated with a northeast trending corridor of Paleoproterozoic rocks which are thrust north-westerly over the Archaean Yilgarn Craton. New discoveries by AngloGold Ashanti at Tropicana – Havana and Beachcomer located along strike and to the northeast indicate that this is an emerging new Australian gold province.
There is no outcrop in the Project area, however wide spaced exploration drilling carried out in the past for lignite and base metals indicates that the depth to basement is consistently less than 20 m.
Reconnaissance work by previous explorers in the Project area has located gold-in-calcrete and gold in bedrock.
- The gold-in-calcrete surface anomalies are not well defined as sampling was restricted to existing access tracks. Nonetheless, the surface anomalies are considered significant as many gold values exceed 2.5 ppb gold with a peak value of 14 ppb gold. The dimension of this gold anomaly is comparable in size and magnitude that led to the discovery of the Tropicana – Havana Prospect. Systematic grid-based sampling is planned to better define the gold target prior to drill testing.
- The gold in bedrock anomaly was originally detected by BHP in aircore hole GPDH141. This hole was part of a fence line traverse to investigate the base metal potential of the district. Holes were vertical and spaced at 400m along the traverses. Mineralisation in GPDH141 occurred at the bottom of the hole associated with saprock after medium grained feldspar-quartz-biotite gneiss. The bottom of hole sample from the 20-21 m interval returned 0.687 g/t gold, 439 ppm copper with elevated silver, molybdenum, nickel and tin. This Paleoproterozoic gold intercept is considered highly significant and confirms the potential of the region.
These anomalies were not explored further by BHP. These results are considered highly significant and a systematic grid-based surface sampling program is proposed followed by aircore drilling of generated targets and infill aircore drilling around Hole GPDH141.