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Guanajuato Silver Confirms New Vein Discovery at El Cubo Mine

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Guanajuato Silver Confirms New Vein Discovery at El Cubo Mine

 

 

 

 

 

Guanajuato Silver Company Ltd. (TSX-V:GSVR) (AQUIS:GSVR) (OTCQX:GSVRF) is pleased to provide drill results that confirm the discovery of a new transverse vein at the Company’s wholly owned El Cubo Mine in Guanajuato, Mexico.

 

Recent stope development and drilling in the Villalpando area of the El Cubo mine, along with detailed computer modeling and reinterpretation of past operators’ drill results, has revealed a new vein structure that has been christened the “San Luis” vein. This system was first identified by previous operators; however, the San Luis vein was never pursued or exploited, and the extent of the mineralization remained unknown. The San Luis vein runs perpendicular to the primary regional north-west Villalpando and Dolores mineralized vein structures, and like other transverse veins at El Cubo, the San Luis vein is anticipated to often carry proportionally higher gold content. GSilver’s recent drilling has confirmed continuity of the vein. It is expected that this mineralization can be quickly accessed from several adits and ramps, with initial production having already commenced. It is further envisioned that San Luis may develop into a gold-rich vein system and grow in importance in the same way that the Santa Cecilia area has become the largest source of high-grade material at El Cubo.

 

James Anderson, Chairman and CEO said, “Economic success of our operations is driven by grade, and the identification of another gold-rich transverse vein that can rapidly enhance our mining schedule further demonstrates the considerable potential remaining at El Cubo. With almost 200-years of mining history behind it, El Cubo is ready to begin a new chapter of growth as the centerpiece of our hub & spoke strategy in Guanajuato.”

 

Note: All silver equivalent (AgEq) values are calculated based on a long-term gold to silver price ratio of 80:1 as used by mineral industry advisors, Behre Dolbear and Company (USA), Inc., in the Company’s NI 43-101 PEA report with the effective date of January 31, 2021; a copy of which is available for review on SEDAR. Abbreviations used in this news release include: gpt: grams per tonne; Au: gold; Ag: silver; m: metre, AgEq: silver equivalent, Est.: Estimated. The historic drill results from the San Luis vein have not been verified by a qualified person on behalf of GSilver and should not be relied upon.

 

Figure 1: El Cubo 3-D view of principle high-grade epithermal veins

 

Sampling and quality assurance/quality control

 

Drill core was first reviewed by a Company geologist, who identified and marked intervals for sampling. The marked sample intervals were then cut in half with a diamond saw; half of the core was left in the core box and the other half was removed, placed in plastic bags, sealed and labeled. Intervals and unique sample numbers are recorded on the drill logs and the samples are sequenced with standards and blanks inserted according to a predefined QA/QC procedure. The samples are maintained under security on site until they are shipped to the analytical lab. The analytical work reported on herein was performed by Corporacion Quimica Platinum S.A de C.V., Silao, Guanajuato, Mexico. To validate our assay results and our preparation procedures, GSilver sends additional random samples representing approximately 20% of all analytical samples to Bureau Veritas in Hermosillo, Sonora, Mexico. Bureau Veritas is an ISO/IEC (International Organization for Standardization/International Electrotechnical Commission) geo-analytical laboratory and is independent of GSilver and its “qualified person”. In order to further validate our assay results and our preparation procedures GSilver sent additional random samples representing approximately 10% of all analytical samples to SGS Mexico, S.A de C.V, Durango, Mexico. SGS is also an ISO/IEC geo-analytical laboratory and is independent of GSilver and its “qualified person”. Core samples were subject to crushing at a minimum of 70 per cent passing two millimeters, followed by pulverizing of a 250-gram split to 85 per cent passing 75 microns. Gold determination was via standard atomic absorption (AA) finish 30-gram fire assay (FA) analysis, in addition to silver and 34-element using fire assay and gravimetry termination. Following industry-standard procedures, blank and standard samples were inserted into the sample sequence and sent to the laboratory for analysis. Data verification of the analytical results included a statistical analysis of the standards and blanks that must pass certain parameters for acceptance to ensure accurate and verifiable results. GSilver detected no significant QA/QC issues during review of the data and is not aware of any sampling, recovery or other factors that could materially affect the accuracy or reliability of the data referred to herein.

 

Technical Information

Reynaldo Rivera, VP of Exploration of GSilver, has approved the scientific and technical information contained in this news release. Mr. Rivera is a member of the Australasian Institute of Mining and Metallurgy (AusIMM – Registration Number 220979) and a “qualified person” as defined by National Instrument 43-101, Standards of Disclosure for Mineral Projects.

 

About Guanajuato Silver

GSilver is a precious metals producer engaged in reactivating past producing silver and gold mines near the city of Guanajuato, Mexico, which has an established 480-year mining history. With five mines and three processing facilities, the Company is one of the fastest growing silver producers in Mexico.

 

 

Posted November 10, 2022

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