Figure 2: Ravensthorpe Project
Local geology with neighbouring projects
Tenement E74/669 contains several sequences of the Bandalup Ultramafic, which are the host unit for Ni-sulphide mineralisation at Jerdacuttup, the closest being the RAV8 mine immediately adjacent to north (Figure 2).
Despite the known geology and proximity to nickel mineralisation, there has been limited historical exploration within the Project. The tenement is prospective for nickel sulphide mineralisation of a similar style to the RAV8 resources to the north, and also gold mineralisation, based on the existence of small historic gold workings in the far northeast of the tenement. RAV8 sits immediately adjacent to the northern boundary of the RAV 8 nickel mine. RAV8 was discovered by Pickands Mather International (PMI) in the late 1960s. It is a lens of serpentinized olivine peridotite, 100 metres thick, in a prominent embayment 500 metres long, occurring at the south dipping contact between siliceous metasediments to the north, and tremolite-chlorite overlain by metabasalt to the south. Tectonic Resources Limited mined RAV8 from 2000 to 2008. Reserves rose to 206,404 tonnes grading 5.49% nickel from 164,933t at 5.83% Ni, resulting in a 17% increase in anticipated nickel in concentrate from about 19.9 million pounds to 22.4Mlb.