The Mawson prospect is home to a massive nickel-copper sulphide discovery that sits within the Fraser Range District of the Albany-Fraser Orogen in Western Australia that also contains the Nova-Bollinger and Silver Knight Deposits. Since its initial discovery, the exploration program has been expanded to include a 3D seismic survey to define the Mawson intrusion architecture. Seismic imaging was performed in pre-stack time migration (PSTM) and pre-stack depth migration (PSDM), and petrophysical measurements including P-wave velocity and density obtained from drill core samples were utilised to build the confidence of seismic velocity model. Several wireline geophysical loggings that have been conducted recently show a strong correlation with key seismic reflectors associated with the chonolith. The resulting seismic cube has enabled the chonolith to be mapped below the Mawson Fault, which supports the theory that the intrusion continues at depth below the existing drilling program.

Open-Access Online Publication: May 29, 2023