The Tassie Well Project is located 140km N of Kalgoorlie, and 25km S of the Leonora-Esperance railway line at Kookynie, WA.
Mapping, rock chip sampling and an historic drilling record, coupled with the project’s proximity to transport infrastructure, demonstrates the increasing priority of this project for Pioneer.
Mapping undertaken by Pioneer at Tassie Well records an outcropping banded chert and weathered iron formation (“BIF”), which has become the target of this exploration proposal.
Aeromagnetic imagery clearly identifies the BIF, which is represented as two strongly magnetic, abutting, lozenge shaped features 7 km long. The BIF, where it outcrops, has been rock chip sampled by Pioneer field staff, with 25 samples returning strongly anomalous results (greater than 30% Fe and up to 54% Fe) along the outcropping strike length of 5 km.
The first priority target is to test for Fe mineralisation which occurs at the northern end of the mapped BIF unit. This is an area of low relief, where outcropping weathered haematitic iron formation returned 3 consecutive 5m channel samples (i.e. 15m width in outcrop) assaying above 48% Fe with 10% LOI. Other samples within the 600m long target zone returned assays of up to 54% Fe.
Department of Mines and Petroleum Open File report a5426 includes a record of a 1973 drill hole by Kennecott Exploration (Australia) Ltd, which intersected 10m of weathered iron formation from 4m and BIF from 75.5m to 105.2m (end of hole). The drill hole was collared at the northern end of the Tassie Well Prospect BIF outcrop, and, while Fe was not assayed for, the recorded presence of multiple intercepts of BIF bodes well for future exploration by Pioneer.