The Cuiú Cuiú project is located in the Tapajos Region of northern Brazil, 20 km northwest of Eldorado Gold’s Tocantinzinho project. The Tapajos Region was the site of a gold rush from the 1970s until the late 1990s with artisanal miners producing an estimated 20 to 30 million ounces of gold. The mineralization is hosted within the Brazilian Shield, which is Archean to Proterozoic in age and extends from Western Bolivia through Brazil to Guyana and Venezuela.
In June 2018, Cabral Gold published a resource estimate based on exploration drilling at four deposits called Central, Central North, Jerimum de Baixo and Moreira Gomes. The mineralization can be described as stockwork/sheeted veinlet systems hosted within broad, altered shear zones within granitic rocks. Individual veinlets are typically 0.2 to 2.0 cm in width but occasionally are up to 20 cm wide. The Indicated Resource consists of 5.9 Mt of 0.9 g/t gold material for 171 kozs of gold (0.4 g/t cut-off ). The Inferred Resource totals 19.5 Mt at a grade of 1.2 g/t gold for 776 kozs of gold (0.35 to 1.3 g/t cut-off ).
The current program of surface exploration is following up on saprolite mining areas as well as alluvial and geochemical anomalies to identify new drill targets for an 8,000 metre diamond/reverse circulation drill program. Ongoing activities include soil sampling, channel sampling, surface trenching, auger drilling and ground geophysics. Mineralization remains open at depth and along strike.
Cabral registered a mining license application for Cuiú Cuiú.
New discovery of high-grade vein mineralization returns grades up to 336 g/t gold. Auger drilling results suggest potential for a mineralized corridor of more than 4 km.
Two new discoveries were made at Cuiú Cuiú. Surface sampling results returned values of 5.5 g/t gold to 162.4 g/t gold.