Sendero Intersects 48 g/t Silver at Peñas Negras, Argentina

en.Wedoany.com Reported - Dimension Network News, August 17 — Sendero Resources Corp. (TSX-V:SEND), a Canadian junior exploration company, announced results from its 2026 reconnaissance diamond drilling and rock sampling program at the Peñas Negras project in the Vicuña belt, La Rioja Province, Argentina. Three drill holes totaling 396.3 meters were completed, all intersecting gold and silver mineralization near surface, validating the company's previously established porphyry-epithermal metallogenic model.

The drilling was conducted at the southwestern edge of the target area. Drill hole PNDH-201 intersected 1.5 meters at 1.04 g/t gold from 14 meters depth; the same hole also returned a broader gold anomaly halo from surface to 46 meters depth, with a weighted average grade of 0.11 g/t. The same drill hole intersected 1.5 meters at 48 g/t silver from 14 meters depth, and 1.0 meter at 28.2 g/t silver from 57 meters depth. Extensive leached caps were identified in all three drill holes, considered an important component of the high-sulfidation epithermal system. Drill hole PNDH-203 also confirmed the presence of the Mogotes fault, further supporting the company's structural-controlled metallogenic model for the Vicuña belt.

In addition to drilling, the company completed a 453-sample rock sampling program covering the entire mineral concession. At the PN-NNE geochemical target, located approximately 9 kilometers north of the drilling area, rock samples returned gold grades up to 4.82 g/t and silver grades up to 18 g/t. In the PN-NW area (approximately 6.5 kilometers northwest of the drilling zone), gold anomalies up to 1.65 g/t were identified, while rock sampling in the southwestern drilling area returned silver grades up to 5.13 g/t. Anomalies in multiple pathfinder elements — antimony, arsenic, copper, molybdenum, lead, and zinc — further confirm the presence of a significant hydrothermal system in the area.

The Peñas Negras project is located in the Vicuña belt, widely regarded as one of the world's most prospective mining jurisdictions, hosting world-class copper-gold deposits such as Filo del Sol and Josemaria. The project covers a mineral concession area of 211.77 square kilometers, situated approximately 12 kilometers north-northeast of the Josemaria resource area. Sendero holds a 100% interest in the project. Anglo American previously conducted historical drilling in the area. The company is fully funded for subsequent diamond drilling at Peñas Negras, with plans to further drill the hydrothermal system along the Mogotes fault structural framework.

Alex Gostevskikh, CEO of Sendero Resources, stated that these results strongly validate the geological model at Peñas Negras and represent an important step in defining the district-scale potential of this strategic mineral concession. He noted that the intermediate intrusive and volcanic host rocks, alteration, pathfinder element geochemistry, stockwork veining, and the Mogotes fault structural framework are all consistent with the characteristics of world-class high-sulfidation epithermal and porphyry systems, the type of system in which the Vicuña project deposits are hosted, located less than 15 kilometers south of Peñas Negras.