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Update on Merger with Polymetals - Notice of Meeting

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BDO CORPORATE FINANCE (WA) PTY LTD<br />

<strong>Polymetals</strong> Mining Limited and Southern Cross Goldfields Limited<br />

Technical Specialist's Report<br />

4.2.1 Geology<br />

The Sandst<strong>on</strong>e project covers part <strong>of</strong> the Archaean Sandst<strong>on</strong>e greenst<strong>on</strong>e belt which is a triangular area <strong>of</strong><br />

greenst<strong>on</strong>e belt rocks interpreted as a north-plunging antiform located at the northern end <strong>of</strong> the Southern<br />

Cross province. The greenst<strong>on</strong>e belt lies at the northern end <strong>of</strong> the Diemals dome at the c<strong>on</strong>juncti<strong>on</strong> <strong>of</strong> the<br />

Youanmi and Edale faults (Figure 4.3).<br />

Figure 4.3<br />

Sandst<strong>on</strong>e Project Geology<br />

The greenst<strong>on</strong>e belt c<strong>on</strong>sists <strong>of</strong> mafic volcanic and intrusive rocks <strong>with</strong> subordinate ultramafic, banded ir<strong>on</strong><br />

formati<strong>on</strong> (BIF) and siliciclastic sediments. Granitoid plut<strong>on</strong>s associated <strong>with</strong> the Diemals dome intrude the<br />

southern margin <strong>of</strong> the belt. The metamorphic grade is greenschist facies, although amphibolites facies<br />

assemblages are locally developed al<strong>on</strong>g the flanks <strong>of</strong> the belt.<br />

The Lord Nels<strong>on</strong> and Lord Henry deposits are about 3 km apart al<strong>on</strong>g the north-south trending Trafalgar<br />

shear z<strong>on</strong>e (Figure 4.4). Lord Henry differs from Lord Nels<strong>on</strong> in that it strikes broadly east-west compared<br />

<strong>with</strong> the north-north-west strike <strong>of</strong> Lord Nels<strong>on</strong>. Most <strong>of</strong> the gold Mineral Resource at Lord Henry is in fresh<br />

rock whereas nearly all <strong>of</strong> Lord Nels<strong>on</strong> is in the oxide z<strong>on</strong>e.<br />

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