Tribeca’s core La Higuera IOCG project is located in the La Higuera district in the southern portion of the Chilean Coastal IOCG Belt. The project currently comprises the following properties:
Chilean Coastal IOCG Belt
The Chilean Coastal IOCG Belt is centred on the Coastal Cordillera range of northern Chile, which is comprised of Late Jurassic and Cretaceous age volcano-sedimentary and intrusive rocks. The north-south belt is considered as a linear array of Mesozoic backarc continental margin rift basins (Sillitoe, 2003). The belt is typically considered to extend from latitude 31°S to 22° south and IOCG deposits within the belt are typically interpreted as controlled by the arc-parallel regional Atacama fault system (Chen et al., 2013).
The IOCG mineralisation in the belt is broadly contemporaneous with manto-style deposits, as well as magnetite-dominated iron-rich copper-poor deposits. Key examples of the Chilean IOCG and allied deposits (and their published mineral resources) are:
- Candelaria (470Mt @ 0.95% Cu, 0.22 g/t gold – Marschik & Fontboté, 2001),
- Mantos Blancos (500Mt @ 1.0% copper – Ramirez et al, 2006),
- Mantoverde (400Mt @ 0.52% copper, 0.11 g/t gold – Benavides et al., 2007),
- El Espino (145Mt @ 0.55% Cu, 0.22 g/t Au, Measured and Indicated resources, Explorator Resources, 2011),
- Dominga (2.1Bt @ 23.3% Fe, 0.07% Cu, Veloso et al,. 2016)
- Santo Domingo (514Mt @ 0.31% Cu, 0.04g/t Au, 25.8% Fe, Measured and Indicated resources, Capstone Mining Corp, 2014).