The Honeymoon Well nickel sulphide deposits are located in the
Agnew-Wiluna greenstone belt, about 45 km south of Wiluna. Both
disseminated and massive sulphide nickel deposits are hosted by
komatiitic rocks within the deformed and metamorphosed Honeymoon
Well ultramafic complex. Fresh ultramafic bedrock is covered by up to
50 m of highly conductive transported material which greatly hampers
both exploration and understanding of the bedrock geology. In the early-1970s, mineralisation was discovered by diamond drilling
geochemical anomalies defined by wide-spaced percussion drilling over
ultramafics that had been outlined by ground magnetics. Subsequent
drilling has defined a resource of 158 Mt at 0.71 per cent nickel (based on
0.4 per cent nickel cut-off, 300 m below surface, December 1995) in four
deposits. Over the life of the project a wide range of geophysical techniques
have been used including airborne and ground magnetics, time domain
clectromagnetics (EM), induced polarisation (IP)/resistivity, gravity and
downhole techniques including EM, IP and physical property
Measurements.