Tasman advises that drilling at its 100% owned Pernatty project (see Figure 1) in South Australia has now been completed after diamond tails were drilled off the two previously completed RC precollars PRC001 and PRC005 (refer locations in Figure 2). As expected, after the drilling of hole PRC006D (refer ASX announcement 15 December 2020 ) basement depth in the latest two holes was also considerably deeper than originally anticipated from the geophysical modelling.
Diamond coring of this vertical RC hole commenced from 534m depth (base of RC precollar) and Mesoproterozoic basement comprising moderately chlorite-hematite altered acid volcanics (Gawler Range Volcanics?) was intersected at 984m. Narrow zones of brecciation were observed but no sulphides were intersected. The volcanics are intruded by a Neoproterozic? Gairdner dyke which was intersected in the last 10m of the hole. This hole was terminated at 1097.9m and no significant mineralisation was intersected.
