In this exclusive interview we joined with Dr. John-Mark Staude and Erika Sweeney of Riverside Resources https://www.rivres.com/ (TSX.V: RRI | OTCQB: RVSDF), as we discussion the Los Cuarentas located in Sonora, Mexico. We will discuss rock sample results of 26 grams, target zones, and permitting. We will provide 3D Mapping along with Geological Mapping as visuals.
Los Cuarentas is a low sulfidation epithermal Au-Ag target characterized by strong argillic and phyllic alteration surrounding low sulfidation epithermal vein systems that host gold and silver mineralization. Vein textures and silica polymorphs suggest that the higher levels of the epithermal systems are present throughout the under-explored district. Hydrothermal alteration is overprinted in places by strong oxidation after pyrite and other sulfides. Several target zones have been identified and most are ready for drilling; these are named: Santa Rosalia, Santa Rosalia Sur, and El Sombrero. The property is located in northern Sonora, 170 km northeast of Hermosillo and located 17 km northwest of SilverCrest Metals’ Las Chispas Mine (PEA (Preliminary Economic Assessment), estimates annual production of 9,559,000 oz AgEq[1]). The Los Cuarentas Project is also located 15 km northeast of Premier Gold’s Mercedes Mine, (produced 89,699 oz Au and 321,814 oz Ag in 2018[2]).
Riverside exploration work Riverside’s exploration team is currently in the field completing mapping and sampling work along strike of the known vein system and believes there is also great potential to identify new veins across the greater property package. Riverside has not yet performed any exploration work at the property and looks to begin a program in the near future to confirm historical results.
In January, 2020 Riverside collected a total of 16 rock samples from selective areas from its first sampling program at the Project with six (6) of the samples returning greater than 5 g/t Au and up to 25.7 g/t Au and 119.7 g/t Ag (see Table 1 below). Riverside’s exploration team mapped and re-sampled known historical work areas to validate the accuracy of the high-grade samples collected in the past and to initially confirm two of the primary targets; Santa Rosalia and Santa Rosalia Sur.
The results from the 16 samples collected by Riverside have been encouraging with the top six samples providing high-grade assays and a good starting point for the Company to continue to work up and further expand targets at Los Cuarentas, which includes areas around and expanding from the former mining operations and major extensive exposed undrilled vein systems. [1] https://www.silvercrestmetals.com/_resources/704-ENG.VMIN03016-05-Las-Chispas-PEA_a190719_SEDAR.pdf [2] https://www.premiergoldmines.com/2018-4th-quarter–year-end
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