EL8005 is extensively mineralised and covers 16 deep lead tin deposits, 10 placer tin deposits, and 76 granitic tin deposits shown on the map overleaf.
Numerous shallow placer style prospects occur within the licence, particularly along Cope Hardinge Creek and Copes Creek and their tributaries. Historic mining of these has been intense at various stages in the past most date from the late 1800′s through to the 1920′s) and exploration will be a process of identifying the areas of unmined alluvium that remain, and sampling these. The scope for locating unmined deposits appears to be significant.
Deep Lead Deposits
As with the shallow placer deposits, historic mining of deep lead tin deposits has been very active. Deep leads can be capped by up to 50 metres of basalt making exploration more difficult, but very high grades are often recorded (100 – 200 kg SnO2/ m3). Some shallower deep leads have been mined by open cut. It appears possible that the group of deep leads extending from Ah Sams lead in the west through Dick Jones – Brickwood – Warland – Stars and Stripes – Starlight Extended – Chinamans -Rows – Firths Hill – Jennings Deep Leads are part of the same buried drainage system and present exploration targets in the sections between each section of deep lead workings, and in tributaries to the main drainage system. Likewise other apparently isolated deep leads (Becketts, Schuman and Borthistle etc) may well be part of larger drainage systems and should be investigated.
Granitic Tin Deposits
Historically individual deposits have yielded less much than 100 tonnes of tin each although some are recorded as very high grade (1 – 5% Sn). Exploration should concentrate on assessing the alluvial potential of the area initially, with the known areas of hard rock mineralisation viewed as possible targets for shallow colluvial and alluvial mineralisation in the areas surrounding them, particularly if the more extensive greisen deposits are present. Likewise, drainages crossing clusters of hard rock workings are possible targets for both shallow placer deposits and deep lead tin deposits.