This technical report documents exploration results and geological interpretations for the Santa Ana silver-gold project in Tolima, Colombia, as of February 2021.
Report context
This technical report, with an effective date of February 24, 2021, presents findings for the Santa Ana Project located in Falan, Tolima, Colombia. The project is an early-stage, underexplored exploration project with a well-developed and extensive Ag-(Au) low to intermediate sulphidation epithermal system. The report details exploration results from work conducted by the company and previous operators, including diamond drilling, surface sampling, trenching, and geophysical surveys.
Processing route
Recovery Methods
No recovery methods are described in this report. Section 17 of the technical report is marked as not applicable.
Proposed Design and Testwork
The report does not contain any proposed processing plant design, flowsheet details, or metallurgical testwork results. No capital or operating costs are presented, and no economic analysis is included.
Historical Operating Data
The report references an adjacent property, the El Gran Porvenir underground mine, located 30 kilometres southwest of the Santa Ana Mines. This adjacent mine site contains a mill with 100 ton per day capacity. The El Gran Porvenir hosts Au-Ag epithermal veins similar to the Santa Ana Project, with veins up to 6.0 m in width hosted in gneiss, banded with galena, pyrite, and scheelite mineralization. However, the report states that the author is unable to verify the data and information from El Porvenir, and that this information is not necessarily indicative of the mineralization at Santa Ana.
Key reported parameters
| Parameter | Value | Basis |
|---|---|---|
| Total drilling (2019–2021) | 14,356.36 m from 79 diamond drill holes | Reported exploration |
| Best drill intercept (SAMP20DH29) | 10.8 kg equivalent silver per tonne over 0.95 m | Reported drill result |
| Historic drill intercept (CP-12-03) | 3.68 g/t Au and 1,495 g/t Ag over 3.04 m | Historic drill result (2012) |
| Historic drill intercept (CP-12-08) | 3.51 g/t Au and 526.7 g/t Ag over 5.16 m | Historic drill result (2012) |
| Maximum surface sample (Au) | 179.5 g/t Au | Prospecting and trench sampling |
| Maximum surface sample (Ag) | Over 1,500 g/t Ag | Prospecting and trench sampling |
| Vein corridor footprint (HFL-151) | Approximately 2.5 km wide and 2 km long | Mapping |
| Mapped or inferred vein zones (HFL-151) | Over 14 km | Mapping |
| District trend (expanded claims) | Approximately 10 km wide and over 20 km long | Regional mapping |
Project website: https://outcropsilver.com/projects/santa-ana/
Project website: https://outcropsilver.com/news/outcrop-silver-adds-third-drill-rig-at-santa-ana-to-expand-discovery-potential-beyond-current-resource-update/
Technical qualifications
The report contains multiple sections marked as not applicable, including recovery methods, project infrastructure and equipment, market studies and contracts, capital and operating costs, and economic analysis. The author states that drill information from the adjacent El Porvenir property was provided by Activos Mineros, and that the qualified person has not visited the El Porvenir Mine in person. The author is unable to verify the data and information from El Porvenir. The report notes that less than 30% of the known vein systems on HFL-151 have been drill tested, indicating the project remains at an early exploration stage. No mineral resource or reserve estimates are presented in this report.
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Source: NI 43-101 Technical Report on the Santa Ana Project, effective date February 24, 2021. Relevant sections: 17, 20, 21, 22, 23, 25, 26.
