Summary:
Mining production will come from two main areas, the Jaguar Pit and the Onça Preta Pit.
Jaguar Nickel Sulphide is a hydrothermal nickel sulphide deposit.
The Jaguar Project is located in the world-class Carajás Mineral Province, which contains one of the world’s largest known concentrations of large tonnage IOCG deposits.
The Project is located at the intersection of the WSW-trending Canaã Fault and the ENE-trending McCandless Fault, immediately south of the NeoArchean Puma Layered Mafic-Ultramafic Complex, which is the host to the Puma Lateritic Nickel deposit. The Project hosts 4 mineralised zones:
• The Jaguar Deposit contains Jaguar West, Jaguar Central North, Jaguar North, Jaguar Central, Jaguar North-East and Jaguar South (Jaguar Deposit);
• Onça Deposits contains Onça Preta, and Onça Rosa (Onça Deposit);
• Tigre Prospect (Tigre Prospect); and
• Twister Prospect (Twister Prospect),
collectively the Deposits.
The Jaguar mineralisation is hosted within sheared Sub-Volcanic Dacitic Porphyries of the Serra Arqueada Greenstone belt, adjacent to the boundary of a tonalite intrusive into the Xingu basement gneiss, while Onça Preta and Onça Rosa are tabular mineralised bodies hosted within the tonalite. The hydrothermal alteration and mineralisation form sub-vertical to vertical bodies which are structurally controlled by the regional ductile-brittle mylonitic shear zone.
The hydrothermal alteration appears to be synchronous with, or post-date, deformation.
Two types of nickel sulphide mineralisation occur in the Jaguar deposit. Sulphide assemblages are similar in both mineralisation types, differing only in modal sulphide composition and structure.
The mean sulphide assemblage, in order of abundance, is pyrite, pentlandite, millerite, violarite, pyrrhotite and sphalerite with trace vaesite, nickeliferous pyrite and chalcopyrite.
The most abundant type of mineralisation constitutes low-grade nickel mineralisation, occurring within veins concordant with the foliation, that is associated with the biotite-chlorite alteration.
The target high-grade nickel mineralisation is associated with the magnetite-apatite-quartz alteration. It occurs as veins and breccia bodies consisting of irregular fragments of extensively altered host rocks within a sulphide-magnetite-apatite rich matrix. Mineralised breccias form semi-massive sulphide bodies up to 30m thick parallel to, or crosscutting biotitechlorite rich zones.
Mineralisation at the Jaguar deposits is a combination of both mineralisation types while Onça Preta and Onça Rosa are predominantly of the second type, forming tabular semi-continuous to continuous bodies both along strike and down dip.
Regolith at the deposit is in-situ and comprises a thin soil layer overlying a decomposed saprolite transitional zone.
The thickness to the base of the transitional zone generally varies from 5m to 25m (max. 42m).
All oxide material is considered as waste and therefore not reported in MRE. The transitional zone has been modelled and makes up 3.4% of the MRE.
Dimensions
Jaguar North (primary mineralisation) has a strike length of 600m by up to 25m wide by 300m deep, trending SE-NW.
Jaguar Central North (primary mineralisation) covers an area of 720m strike length by 100m wide by 500m deep, trending E-W. Individual domains dip sub-vertically with widths up to 20-30m.
Jaguar Northeast (primary mineralisation) covers an area of 1,300m strike length by 300m wide by 550m deep, trending ESE-WNW. Individual domains dip sub-vertically with widths up to 10-15m.
Jaguar West (primary mineralisation) has a strike length of 850m by up to 80m wide by 350m deep, trending E-W. Individual domains dip sub-vertically with widths up to 10m.
Leão East (primary mineralisation) has a strike length of 275m by up to 10m wide by 130m deep, trending ESE-WNW.
Onça Preta (primary mineralisation) has a strike length of 450m by up to 15m wide by 1,200m deep, trending E-W.
Onça Rosa (primary mineralisation) has a strike length of 650m by up to 10m wide by 400m deep, trending ESE-WNW.
Tigre (primary mineralisation) has a strike length of 500m by up to 10m wide by 250m deep, trending ESE-WNW.
Twister (primary mineralisation) has a strike length of 400m by up to 10m wide by 200m deep, trending ESE-WNW.