Mulga Tank

  • WMG’s flagship project – frontier exploration play for major Ni-Cu-PGE desposits under cover in this overlooked portion of the eastern Yilgarn Craton
  • “Belt scale” opportunity – strategically assembled 395km2 position on the significantly under-explored Minigwal Greenstone Belt
  • Project contains the entire Mulga Tank Dunite Intrusive (WMG 100%) – a major ultramafic intrusion approximately the same size as the Kambalda Dome camp (35Mt at 3.1% Ni)
  • Significant evidence for working Ni-Cu-PGE sulphide mineral system across ~20km2
  • Only 12 historical holes deeper than 200m – nearly all show Ni-Cu-PGE sulphides
  • Multiple untested coincident EM, gravity and geochemical anomalies
  • WMG’s maiden diamond drilling program currently underway (April to July 2022)
  • Further 12km trend of interpreted ultramafic bodies completely unexplored for Ni-Cu-PGE
  • Belt also considered prospective for orogenic gold


The Mulga Tank Project comprises exploration licence E39/2132 and exploration licence applications E39/2223 and E39/2299, covering an area of 395km2. The project is located 190km east-northeast of Kalgoorlie in the Duketon Domain of the Burtville Terrane, in the Eastern Goldfields Province of the Yilgarn Craton, Western Australia.

The project covers the majority of the significantly under-explored Minigwal Greenstone Belt. The project is a frontier play offering exciting exploration potential, exploring under shallow sand cover in this overlooked area of the eastern Yilgarn Craton.

Tenement E39/2132 contains the entire Mulga Tank Dunite Intrusion, a major ultramafic intrusion, considered highly prospective for Ni-Cu-PGE magmatic sulphide mineralisation. The larger project area contains a 12km trend of interpreted ultramafic bodies and potential feeder system for the Mulga Tank intrusion that has received little to no exploration focus to date. The Minigwal Greenstone Belt is also consider prospective orogenic gold mineralisation.

The Minigwal Belt and Mulga Tank dunite were first identified by BHP in the 1980’s yet are still under explored due to the sand cover. Most recent exploration by Impact Minerals (ASX:IPT) (2013-2016) demonstrated a working Ni-Cu-PGE magmatic sulphide mineral system, with sulphide intersections observed within 8 diamond drill holes drilled to test several electromagnetic (EM) geophysical anomalies, including 2m @ 1.3% Ni and 0.25m at 3.8% Ni, 0.7% Cu and 0.7g/t PGE. This exciting work, confirming a sulphide mineral system with a parent magma reaching sulphur saturation and precipitating high-tenor Ni-sulphides, enhances the prospectivity of the intrusion – the challenge now remains for WMG to identify locations where significant accumulations of these sulphides may have occurred.

WMG is methodically exploring the intrusion with a series of high-resolution ground geophysical surveys aimed at “unlocking” the project. This work includes a recent high-resolution gravity survey and Moving Loop Electromagnetic (MLEM) survey. This dataset aims to better define the dunite intrusion and drill targets that the Company is currently testing with a maiden ten-diamond diamond drilling program currently underway.