Igab Project

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An early-stage project covering approx. 95 km² with excellent potential, Igab is situated in the prolific Nassau mountains and where artisanal mining of the drainages has been occurring for over a century. Despite this, the current concession holders have been able to limit access to their own artisanal operations. Within trucking distance of Newmont’s Merian mine (2P:3.9 Moz Au, M&I: 1.5 Moz Au, Inferred: 1.0 Moz Au) 30 km to the north, the property is accessed by road to the Marowijne river followed by a short boat ride down river.

The regional setting for Igab is highly prospective, being situated south of Merian where the northern limb of the Marowijne Greenstone belt folds from an east-west orientation to a north-south orientation. Drainages and hills on both sides of this regional fold are dotted with saprolite and alluvial mining operations. At a local scale, the project straddles the contact between a granodiorite to the south and mafic volcanics and sediments to the north, providing a strong rheologic contrast to focus deformation and thus increase porosity and permeability for mineralizing fluids. Mapping in the 1950s to catalogue Suriname’s mineral potential and recent work by the concession holder corroborate the importance of this contact with the discovery of altered and sheared granodiorite and mafic volcanic rocks. The concession holder had been mining the contact profitably until a high-wall collapse made further work too challenging. In 2023 Greenheart Gold and the concession holder collected samples around the contact with highlights such as 94.2 g/t, 56 g/t and 4.01 g/t Au. The potential large size of the system is indicated by grab samples of quartz veining in granodiorite which assayed 5.63 and 2.05 g/t Au over 3 km to the south.

The western edge of the Nassau mountains has been explored previously, most recently by Sumin Resources, Mariana Resources, 79North and now Miata Metals. However, except for bauxite exploration by Suralco and BHP on the mountain top, Igab has yet to be explored for gold using modern methods. The key ingredients of reactive host rocks, strong rheologic contrasts focusing deformation, and the ubiquity of alteration and mineralization on the property mean Greenheart Gold is excited to be the first company to explore it.