Discovers High-Grade Shallow Precious Metals Mineralization At The Plomosas
GR Silver Mining Ltd. ("GR Silver Mining" or the "Company") (TSXV: GRSL), (OTCQB: GRSLF) (FRANKFURT: GPE) – announces drilling results from initial exploration carried out on new areas representing potential step outs from NI 43-101 mineral resources at both the San Juan/La Colorada and Plomosas Mine Areas. The gold (Au) and silver (Ag) discoveries are in addition to the Company's successful exploration programs reported earlier this year at the Loma Dorada, Trampolín and Corta Pico vein systems (see News Releases dated February 10, 2022 and February 17, 2022).
GR Silver Mining Chairman and CEO, Eric Zaunscherb commented, "Our primary focus remains on delivering updated mineral resource estimates for the San Marcial and Plomosas Mine Areas in Q1|23. We cannot, however, ignore the rich potential of the wholly owned, 432 km
Plomosas Project in its entirety, with several strong regional, northwest-trending structures that remain untested over a combined 75 km strike length. The results released today are an indicator of the potential of the project's pipeline targets, which we will reveal going forward."
Loma Dorada Drill Program
The latest drill results from the 1 km along strike extension to the north of the San Juan/La Colorada vein system, intersected high-grade Au-Ag typical of epithermal veins with colloform banded quartz textures within the predominant NW trend (Figure 1). This structural trend extends to the north of the San Juan/La Colorada NI 43-101 mineral resource and is part of the NW to N-S trend of Loma Dorada. There is evidence that structures in this area intersect defining a 'flower' structural pattern with the potential to develop ore shoots at depth. The shallow results, such as those obtained from drill hole LDS21-13A, which intersected 5.2 m at 4.52 g/t Au and 56 g/t Ag, including 1.3 m at 10.17 g/t Au and 340 g/t Ag (Table 1), encourage the Company to continue drilling for potential resource delineation.
El Saltito Drill Program
Shallow drilling results revealed narrow high-grade Au-rich epithermal veining at the southern extension of the 1.5 km long El Saltito vein system (Figure 1). The high-grade gold intercept of 0.5 m at 30.09 g/t Au from drill hole ESS21-04 (Table 1), is the most SE hole in the area, indicating the potential for additional high-grade Au mineralization further to the SE. The system is therefore open to the south, along a structural extension that is exposed/mapped on surface for at least another 500 m.
Las Cuevas – New Discovery
The Las Cuevas vein system is located 1.5 km along strike to the N-NW of the NI 43-101 resource at the Plomosas Mine Area (Figure 1) and represents a new discovery of Ag-Au mineralization. Shallow drilling and channel sampling (Table 2) have been successful in discovering high-grade Au and Ag mineralization at this potential northern extension of the resource area. The mineralization coincides with a historical high-chargeability geophysical anomaly, and also with a high aeromagnetic anomaly identified in a ground geophysical survey. This drilling by GR Silver Mining is the first ever on the Las Cuevas target and, combined with encouraging Ag-Au channel results, provides justification for a follow up surface drilling program in the near future, aiming to integrate Las Cuevas with the existing resource area
Las Teresas – New Discovery
Exploration by GR Silver Mining in 2021 and early 2022 on the Las Teresas vein system, approximately 2 km to the NW of the Loma Dorada mineralization, has been successful in identifying potential extensions to the Au-Ag low sulphidation vein-style mineralization. Shallow drilling and surface channels have identified mineralized zones with Au-Ag anomalies that require follow up drilling.
Las Chorreras – New Discovery
Las Chorreras is located at the western end of Plomosas concession. Historical channel sampling in the area outlined Au-Ag anomalies on a 1 km long prominent hill with intense argillic alteration. Recent channel sampling by GR Silver Mining confirmed the discovery of high-grade Au and Ag mineralization associated with the intense advanced argillic alteration zone. This mineralization contains pyrite, galena and sphalerite, both disseminated and in irregular stringers, hosted within andesitic "block and ash" units in contact with dioritic intrusives and rhyolitic dykes. The next stage of exploration at this new target will involve shallow drilling to confirm the 3-D extension of mineralization below the positive channel sample results.
Disclaimer: GR Silver is a paid marketing client*
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