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Location: 70 km SE from Kalgoorlie, Western Australia, Australia
Suite 10, Level 3, 33 Richardson StreetPO Box 470PerthWestern Australia, Australia6005
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The Scoping Study only considers nickel mineralisation at Foster 85H, Foster South and Baker.BakerThe majority of the mineralisation is interpreted to be hosted at the base of a hanging wall komatiitic basalt flow located 30 to 50 metres above the more traditionally prospective basal komatiite flow in contact with the Lunnon basalt footwall. At least two late east-dipping steeper structures have been identified which crosscut, offset, and structurally thicken the base of flow mineralisation locally. The western one, which hosts significant re-mobilised massive nickel sulphide itself, has a dip of 42° towards 066°. This structure is identified as a steep conductive surface in both DHTEM and surface Fixed Loop Electro-magnetic surveys. The mineralised horizon is interpreted to have been structurally cut, offset and disrupted by late fault and fold structures which locally mobilise and concentrate the preexisting base of ultramafic flow mineralisation. The modelled sub-domains are identified as either BOF (base of flow) or MOB (structurally mobilised) after their respective mineralisation style. The modelled Baker deposit is defined by an undulating horizon at the base of second ultramafic flow position with an overall average strike and dip of approximately 245°/25°-30° southeast. The outline of the deposit is one of an irregular elongate ovoid shape with a long axis plunge of approximately 25° towards 125° currently extending for more than 600m. The across plunge dimension approaches 200m. The vertical extent of the deposit is approximately 330m ranging from +300m ASL (17m below ground level) to -30m ASL (347m below ground level). The mineralised horizon is interpreted to have been structurally cut, offset and disrupted by late fault and fold structures which locally mobilise and concentrate the pre-existing base of ultramafic flow mineralisation. The modelled sub-domains are identified as either BOF (base of flow) or MOB (structurally mobilised) after their respective mineralisation style.Primary nickel mineralisation at Baker predominantly consists of pyrrhotite-pentlandite-pyrite plus subordinate chalcopyrite and magnetite.Foster SouthThe majority of the mineralisation is interpreted to be hosted at the base of the main komatiitic flow, the more traditionally prospective basal komatiite flow in contact with the Lunnon basalt footwall (main contact mineralisation).The Foster South deposit is hosted at the base of the Kambalda Komatiite Formation immediately above or on the contact with the Lunnon Basalt. The channel mineralisation is located in a significant embayment within the footwall Lunnon Basalt and the mineralisation limits are characterised as “pinch outs” into the encompassing basalt. There are also components of flanking (non-channel) nickel mineralisation and minor hanging wall mineralisation at the base of the second komatiite flow, both intersected by Lunnon Metals’ and historical DD holes. Although neither of these were modelled for this MRE exercise, and thus are not reported herein, future targeting from better positioned underground drilling positions is warranted to fully assess their economic potential. The modelled deposit displays an overall average strike and dip of approximately 125°/60° south-west. The outline of the deposit has a long axis plunge of approximately 48° towards 150° currently extending for approximately 260 metres. The across plunge dimension approaches 100 metres. The vertical extent of the deposit is approximately 300 metres ranging from 340 metres below sea level (680 metres below ground level) to 560 metres below sea level (900 metres below ground level). 85HThe 85H MRE mineralisation is interpreted to have formed at the base of a younger hangingwall komatiitic lava flow.The 85H surface is a major, laterally extensive, hanging wall ore surface associated with the base of the interpreted second main ultramafic flow at Foster. It is characterised as an extensive, very planar structure of irregular low-high tenor variation within the mineralisation. Partially developed on the historical 8, 9 and 10 Levels at Foster, but essentially unmined, the Company interprets this hangingwall mineralised surface to have the potential to extend to the south of the current development and up dip.The modelled 85H lode inclusive of the internal HG domain is defined by an undulating planar surface with an overall strike and dip of 305°/56° southwest. The outline of the lode is one of an irregular ovoid shape with a 1,200 m long axis plunge of approximately 20° towards 140°. The across plunge dimension is between 200 m and 300 m while the maximum horizontal strike is approximately 800 m. The vertical extent of the lode is 520 m ranging from +220 mASL (90 m below surface) to -300 mASL (610 m below surface). The lode is of variable thickness with a mean true width of about 3 to 4 m and has been modelled to pinch out at its extremities.
