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Rio Verde Copper Project
Avanco's highly prospective Rio Verde Project comprises seven copper prospects; Agua Boa, Antas North, Antas South (host to the High Grade Zone), Capivara, Clovis, Lazinho and Paulinho.
The Rio Verde Copper Project continues to return very high grade copper results.
The recent extension to tenure, from 9,000 ha to 25,000 ha, over an extremely prospective 14 kilometre long copper trend, has resulted in a significant increase and widening of the Rio Verde drill program. This new ground hosts immediate and high priority drill targets. The company is confident of continuing exploration success.
Agua Boa Copper Prospect
High copper soils at the Agua Boa Prospect present a very clear 'bullseye' precisely coincident with the strong magnetic 'bullseye', associated with magnetite alteration. This typical Carajas style iron-oxide-copper-gold (IOCG) mineralisation supports the potential for substantial discovery.
To the south, recent mapping and rock chipping has identified two parallel mineralised zones, approximately 1.5 kilometres long, peppered with historic workings, and showing typical zoned alteration halos. This area will be advanced as a priority to enable drill testing.
Antas North Copper Prospect
Previous drilling over the Antas North Prospect was completed to evaluate a 700 metre long by 200 to 400 metre wide copper-gold soil anomaly.
Favorable historical intersections included:-
- 49.3 metres at 2.40% copper and 0.40g/t gold from 76 metres.
- 19.4 metres at 1.63% copper and 0.43g/t gold from 125 metres.
This high-grade mineralisation at the Antas North Prospect remains open at depth and along strike.
Antas South Copper Deposit
Significant intersects of copper oxide mineralisation were returned from drilling at the Antas South Deposit. The favourable intersections included:-
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46.0 metres at 1.03% copper from 7.0 metres |
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42.0 metres at 1.23% copper from 13.0 metres |
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38.0 metres at 1.53% copper from surface. |
These results have increased the strike of the Antas South Oxide Deposit and confirm it also remains open along strike. Further extension to the deposit is currently being investigated.
Drilling has also focused on extending the high grade copper discovery at the Antas South Deposit.
High Grade Zone
The Antas South Deposit is host to the structurally controlled High Grade Zone (HGZ). The drilling continues to return very high grade copper intersects supporting continuity and increasing strike length of the (HGZ). Interpretation indicates that the HGZ remains open in both directions.
Significant intersections include:-
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9.0 metres at 50.49% copper from 18.0 metres | |
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1.0 metres at 18.83% copper from 57.4 metres | |
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incl. |
7.25 metres at 14.26% copper from 49.75 metres |
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1.85 metres at 28.17% copper from 59.7 metres | |
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0.8 metres at 26.75% copper from 21.2 metres |
Core logging continues to record high concentrations of chalcocite mineralisation in key drill holes. A program of deep drilling is underway to test for deep seated primary mineralisation.
Capivara Copper Prospect
The Capivara Prospect is situated 2.5 kilometres from Antas South, within the same highly anomalous, southeast trending, zone. Drilling and core logging have identified near surface copper mineralisation.
The close proximity of historical artisanal workings support an interpretation that the Capivara Prospect may also host high grade copper mineralisation.
Clovis Copper Prospect
Historic drilling has been conducted over the Clovis Prospect. Widespread mineralisation has been intersected including 17.1 metres at 2.20% copper and 0.18g/t gold from 75 metres. The high-grade mineralisation at the Clovis Prospect remains open along strike and at depth. It is another high priority target for further drilling.
Lazinho Copper Prospect
Drill testing of the strike continuation at the extremely prospective Lazinho Prospect, which is already supported by historical anomalous soils and limited historical drilling, is an exploration priority. Avanco is confident of continued exploration success over this relatively untested prospect.
Paulinho Copper Prospect
The Paulinho Prospect is not as advanced as the Antas North and Clovis prospects, with only two historic holes having been drilled. Widespread mineralisation was intersected in a hole collared to investigate a broad geophysical induced polarisation anomaly. Results from this hole included 125.9 metres at 0.21% copper from 64 metres, including 5.6 metres at 1.14% copper from 183 metres.
Mineralisation remains open in all directions. The wide intercepts of mineralisation are indicative of the existence of a large mineralised system, and further drill testing of this prospect is a priority.
