Possible intrusive Proterozoic salt bodies beneath the Blinman, Upalinna, Martins Well, Mt Hemming, Willippa and Bibliando Domes were investigated by field mapping, including the construction of measured outcrop stratigraphic sections, seismic...
Possible intrusive Proterozoic salt bodies beneath the Blinman, Upalinna, Martins Well, Mt Hemming, Willippa and Bibliando Domes were investigated by field mapping, including the construction of measured outcrop stratigraphic sections, seismic surveying (a 10 km line over the crest of Martins Well Dome), airborne magnetic/radiometric surveys (900 line km at 400m spacing flown over the Bibliando Dome magnetic anomaly), gravity data interpretation, and the rotary/diamond drilling and geophysical logging of two cored holes. Blinman 1 was abandoned in diapiric material at 481 m, having intersected traces of potassium salts near TD. Blinman 2 recorded slight hydrocarbon shows (gas from fracture porosity and bitumen coated grains in dolomitic breccia) before terminating at 2031 m depth without reaching the target Callanna Group. Gossans sampled on the Willippa Anticline returned assays of 4.6% Cu, anomalous Mn and As, and elevated Co and Ni values.
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