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Cabral Gold: Unlocking the high-grade gold potential of Cuiú Cuiú

Proactive's Mining Analyst, Dr Ryan D. Long, catches up with Cabral Gold’s, chief executive, Alan Carter. We discuss the Cuiú Cuiú Gold Project in Brazil, where float sampling in the Alonso Prospect and drilling at the MG and Central Deposits and other prospects is opening up higher-grade mineralisation to build on the 1moz resource estimate.

Cabral Gold Inc -

Cabral Gold Inc (CVE:CBR) holds 100% of the Cuiú Cuiú Gold Project, in the Tapajos Region in Pará, Brazil (Figure 1). The project has a NI 43-101 mineral resource estimate of 1moz at an average grade of 1.14g/t Au. During 2019 and during the initial months of 2020, the company has been delivering on its strategy to define more high-grade gold mineralisation at the project.

Figure 1: Location of the Tapajos Region in Pará, Brazil (source: Cabral Gold)

Dr Alan Carter, is the chief executive of Cabral Gold. He has over 25 years’ experience in mineral exploration. Previously he was manager (business development) within the BHP Billiton Exploration Group but he has also been extensively involved with junior companies. He was formerly chief operating officer of Peregrine Diamonds, and was CEO of both Balaclava Mines and Magellan Minerals.

The Cuiú Cuiú District hosts vein and shear zone gold mineralisation that has been emplaced within a Proterozoic granitic basement and is thought to be related to intrusions that have yet to be identified.

At the project there are two styles of gold mineralisation, lower-grade stockwork-style mineralisation, that is typically running at a grade between 1-2g/t Au, and discrete high-grade gold-bearing veins, which can run to well in excess of several ounces per ton. It is these higher-grade veins that Cabral is focused on discovering and advancing to build on the potential of the project and demonstrate the district scale potential of its ground holding.

The current mineral resource estimate, comes from the Central and MG deposits (Figure 2), but no consideration in the resource estimate was given to the higher-grade zones within these two deposits. Cabral’s recent drilling within both deposits demonstrates that there is continuity to the higher-grade zones.

Figure 2: Location of the Deposits and Prospects at the Cuiú Cuiú Gold Project (source: Cabral Gold)

Around these two principal deposits are 22 prospects (Figure 2), which have yet to be fully evaluated or even tested in some cases. Around eight prospects have had some initial drilling that returned high-grade gold intercepts, most notable is the 2019 drilling at the Machichie and Morro da Lua Prospects. Initial float sampling at the Alonso Prospect has also returned some interesting results.

Last year’s drill results from the Machichie Prospect, located around 0.5 km to the north of the MG Deposit, include: 3.4 m at a grade of 36.9 g/t Au from 32.2 m (CC182-19) and 2.1 m at a grade of 15.3 g/t Au from 91.7 m (Figure 3). While drill results from the Morro Da Lua Prospect, include: 2.8m at a grade of 19.5 g/t au from 42.2m (194-19) and 0.5 m at a grade of 9.1 g/t Au from 99.9m (194-19).

Figure 3: Location of the drill results at the Machichie Prospect (source: Cabral Gold)

The Alonso Prospect is located around 3 km to the southeast of the MG Deposit. Initial sampling of quartz vein float returned results from 11.6 g/t and 200.3 g/t Au, and average 91.7 g/t Au, from 24 samples (Figure 4).

Figure 4: Sampling results from the Alonso Prospect (source: Cabral Gold)

These quartz vein bearing boulders have been defined over a strike of 1km, and is coincident with an east-west trending magnetic anomaly. Cabral is now awaiting further results from quartz boulders identified along strike, as well as, the detailed soil and stream sediment sampling results, with shallow auger drilling results expected to be received in March 2020.

Cabral has acquired its own RC drill rig and the company expects that it can dill cost effectively, at around C$25 per meter. Using this newly purchased rig the company is planning to focus its future efforts on follow-up drilling of the Alonso Prospect and drill testing other regional targets in 2020, while it also continues to define the high-grade zones at MG and Central Deposits with a view to defining a high-grade resource in the near-term.

Quick facts: Cabral Gold Inc

Price: 0.13 CAD

TSX-V:CBR
Market: TSX-V
Market Cap: $8.02 m
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