The Guintar-Niverengo project is located in the Anza district, 50 Km west of Medellin, in the northern portion of Colombia’s prolific Middle Cauca belt.
Rocks within the Guinter-Niverengo region are predominantly late Cretaceous age, deep marine meta-sediments, mafic and ultramafic marine volcanic rocks which have been intruded by dioritic to dacitic stocks of Upper Miocene-Pliocene age. The sedimentary sequence has been variably to strongly hornfelsed with magnetite and biotite forming part of the metasomatic assemblage.
Mineralization at Guinter is best represented by the Aleman mine which is an artisanal operation located on the edge of the title. At Aleman, thin east-west oriented and steeply dipping quartz-sulfide (pyrrhotite, pyrite, marcasite) veinlets host gold mineralization averaging approximately 20g/t across individual vein thicknesses of up to about 10cm and over about a 50m zone width and 1.5km strike length.
A 10-hole, 4184m scout drilling program was conducted at Guinter by AngloGold Ashanti in 2015. Drilling intersected gold mineralized quartz-veins similar to those at Aleman but failed to identify any broad zones of economic mineralization. Best results were 2m @ 3.8g/t gold, 8m @ 2.5g/t gold and 6m @ 1.6g/t gold.
In 2016 and 2017 AngloGold-Ashanti’s interest shifted to the Niverengo area, some 1.5km East and along-strike of the Aleman mine but across a major north-south oriented reverse fault and into a younger sequence located possibly structurally above the Aleman mineralized system. Magnetics, IP-geophysics, soil and rock-chip geochemistry identified a 2000m by 800m wide target, interpreted to represent the low-sulfidation reflection of an underlying Aleman vein-system.
A 6-hole, 1479 meter scout drilling program was conducted at Niverengo. Best intersections were from drill holes three and four which were drilled from the same drill pad at 180-degrees from each other in an area of deep soil cover and no outcrop. Drill hole 3 intersected 36m @ 1.2g/t gold from surface and drill hole 4 intersected 10m @ 1.6g/t gold and 88m @ 0.9g/t gold. Projected to surface, the two drill holes identified a gold mineralized zone of approximately 100m width which remains open to the east and west. Gold mineralization is associated with sheeted quartz-calcite-sulfide veins, with chlorite-illite-smectite alteration halos. Gold mineralization correlates very well with Ag, Cu and Sn.
The Niverengo title is drill-ready and fully-permitted for drill testing. Royal Road hopes to drill-test Niverengo in Q3-2019.
We are the largest title and title application holder in Colombia with quality gold and copper exploration projects located in two main regions; The Northern Block, encompassing the prolific Middle Cauca belt, and the Southern Block, incorporating the most prospective and under-explored regions of the Andes.
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