Royal Road Minerals Limited (TSXV: RYR | OTCQB: RRDMF) has announced results from geological mapping and surface sampling at its Margaritas target within the wholly owned Güíntar-Alemán-Margaritas project in Colombia. New mapping has substantially expanded the known footprint of the high-grade silver-gold-antimony vein and breccia system to approximately 400 by 450 metres, well beyond the area tested by previous drilling. The disclosure also highlights newly identified porphyry-style alteration northeast of the drilled area, providing an additional vector towards a potential porphyry source. Investors may be watching closely as the company prepares to drill-test the expanded system during the current campaign.

Key Points

  • Royal Road Minerals Limited (TSXV: RYR | OTCQB: RRDMF) operates the wholly owned GAM project approximately 50 kilometres west of Medellín, Colombia
  • Surface mapping expanded the Margaritas silver-gold-antimony vein footprint to approximately 400 by 450 metres, open to the north and at depth
  • 62 rock-chip samples returned up to 475 g/t silver, 5.53 g/t gold, 987 ppm antimony and 4.59% zinc; mineralization interpreted to extend at least 330 metres below surface
  • Planned drilling will test the expanded vein system along strike and at depth, and will also evaluate newly identified porphyry-style alteration northeast of the drilled area

Expanded Vein Footprint and Surface Sampling Results at Margaritas

Recent surface mapping at Margaritas has identified additional carbonate-base-metal veins north of the previous drilling and extensions to previously known structures, substantially enlarging the interpreted vein and breccia footprint to approximately 400 by 450 metres. Rock-chip sampling of newly identified veins returned up to 229 g/t silver from a historically mined vein and 116 g/t silver with 1.75 g/t gold from an area of dense veining. A large mineralized breccia boulder within the expanded footprint returned 475 g/t silver, 987 ppm antimony and 0.90 g/t gold. The company notes its size suggests a potentially nearby bedrock source that has not yet been located.

Previous Drilling Intersections Underpin Exploration Significance

Prior diamond drilling at Margaritas — comprising four holes — intersected multiple high-grade intervals, including 4 metres at 631 g/t silver, 0.47% antimony and 0.41 g/t gold from 177 metres in MAR-DD-002, and 5 metres at 333 g/t silver, 0.28% antimony and 1.18 g/t gold from 171 metres in MAR-DD-003. The release notes these are not true widths and the company does not have sufficient information to estimate true widths. Broad lower-grade zones of up to 304 metres grading approximately 0.3 g/t gold equivalent were also intersected, previously interpreted as the upper or peripheral expression of a larger hydrothermal system predating the silver-gold-antimony veins.

Porphyry-Style Alteration Identified Northeast of Drilled Area

Mapping northeast of the previously drilled area has identified potassic alteration with disseminated pyrrhotite and elevated gold values in rock-chip samples. The company considers this alteration a potential vector towards the source of the broader hydrothermal system and a possible porphyry target. This finding, situated approximately 4 kilometres north of the Güíntar porphyry discovery, adds a second exploration dimension to the Margaritas target. Planned drilling during the current GAM campaign is intended to test both the high-grade vein system along strike and at depth, and the newly identified porphyry-style alteration zone.