The mapping programme consisted of infill geological mapping along with groundscintillometer and spectrometer surveys over the previously announced Anomaly 5 drill targets. Madison’s original surveying was completed at 40 m line spacing with 10 m station spacing. The company has added new drill targets at Anomaly 5 by surveying at 20 m line spacing. The results of the recent mapping and surveying programme are an increased surface expression of radiometric D-type leucogranites (favourable rock type mined at Rossing). In particular, the surface expression of mineralised leucogranites around Trenches 4 and 5 and north of Trench 3 has increased to thicknesses of up to 40 m.
The mapping campaign accomplished several key goals, including:
- Outlining priority drill targets.
- A base map of surface features to guide drill targeting.
- Identifying and delineating mineralised surface lithologies.
- Highlighting the surface continuity of mineralised D-type leucogranites.
