Lupaka Gold Corp. (TSX-V: LPK) (FSE: LQP) is pleased to announce the results from a recent comprehensive and systematic underground sampling program on the 3400 Level at the Company’s 100% owned Invicta Gold Development Project.
Highlights:
* Au-Eq. calculations are based on US$1250 for gold (“Au”), US$17.00 for silver (“Ag”), US$3.00 for copper (“Cu”), US$1.25 for zinc (“Zn”), and US$1.05 for lead (“Pb”), with assumed mill recoveries of 85% for Au, 80% for Ag, 82 % for Cu and Pb, and 77% for Zn.
“These results demonstrate the high-grade, continuous nature of the mineralized system at Invicta and help validate the expected grade in our mine plan from the 3400 Level. The average sampled grades are in-line, or higher, than grades within our mine plan, derived from the PEA. With a combined average width of over 12 metres, the sub-vertical Invicta Deposit extends for over 130 metres in strike length on the 3400 Level and will be immediately accessible for extraction when the Invicta mine becomes operational later in 2018.”
Will Ansley, President and CEO of Lupaka
Sampling Program and Results
To better appreciate the grade continuity within mineralized veins at the Invicta Deposit and to confirm modeled grades within the current Invicta Mineral Resource model, the Company recently completed a comprehensive underground channel sampling program over the entire western section of the Atenea vein on the 3400 Level, using a 5-metre sample spacing interval (Plan shown in Appendix A). The 2018 program, designed to augment previous sampling work performed in 2014, commenced at the 2SW cross cut (on the western side). Channel sampling was performed across each wall (west and east) as well as over the ceiling on the same plane. Further channel sampling was performed systematically every additional 5 metres, similar to the mineral resource block model size, and over both walls within the six-additional cross-cuts (seven in total) ending on the eastern wall of the Level.
Polymetallic mineralization within the Atenea Vein on 3400 Level is hosted by structurally-defined footwall and hanging wall components which were mapped and sampled separately. Summarized assay sampling results are tabulated in Table 1 with a summarized and detailed sampling plan provided in Appendix A.
Table 1: Average Sampling Results from 3400 Level Atenea Vein Sampling Program
Atenea Vein | Length Metres |
Width Metres |
Au g/t |
Ag g/t |
Cu% | Pb% | Zn% | Au-Eq. g/t |
Footwall Vein | 130.0 | 6.1 | 5.20 | 68.69 | 1.53 | 1.38 | 0.97 | 9.86 |
Hanging Wall Vein Split | 70.0 | 6.0 | 2.74 | 62.18 | 1.33 | 1.52 | 0.86 | 7.00 |
Summary results obtained from 331 samples taken in the drift and crosscuts, over spacing of approximately every 5 metres, are tabulated in Table 2 (Footwall Vein) and Table 3 (Hanging Wall Split).
Table 2: Summary Assays from Atenea 3400 Level — Footwall Vein
Width | Au | Ag | Cu | Pb | Zn | Au-Eq. | |
Metres | g/t | g/t | % | % | % | g/t | |
5.00 | 7.24 | 8.60 | 0.33 | 0.07 | 0.13 | 7.99 | |
5.05 | 4.05 | 29.43 | 1.26 | 0.20 | 0.50 | 6.84 | |
4.50 | 0.35 | 14.44 | 0.39 | 0.15 | 0.25 | 1.39 | |
3.20 | 0.38 | 32.19 | 1.05 | 0.86 | 4.68 | 5.73 | |
7.80 | 8.71 | 22.21 | 0.35 | 0.19 | 0.61 | 10.03 | |
8.30 | 3.19 | 20.81 | 0.69 | 0.12 | 0.87 | 5.14 | |
3.00 | 4.72 | 5.00 | 0.17 | 0.02 | 0.14 | 5.16 | |
3.20 | 2.02 | 5.00 | 0.13 | 0.14 | 0.43 | 2.63 | |
2.00 | 0.49 | 2.67 | 0.17 | 0.08 | 0.06 | 0.87 | |
4.20 | 4.86 | 41.57 | 0.82 | 1.10 | 2.89 | 9.03 | |
6.15 | 2.54 | 55.30 | 2.02 | 0.95 | 0.44 | 7.25 | |
2.60 | 12.48 | 116.50 | 2.28 | 3.24 | 0.97 | 19.96 | |
3.60 | 1.42 | 53.25 | 1.18 | 1.84 | 0.56 | 5.33 | |
2.80 | 11.79 | 132.57 | 2.74 | 0.98 | 1.91 | 19.52 | |
9.20 | 3.76 | 75.48 | 1.78 | 2.00 | 1.43 | 9.52 | |
14.40 | 4.40 | 99.78 | 2.35 | 3.15 | 0.99 | 11.75 | |
3.80 | 6.31 | 98.05 | 2.34 | 2.04 | 2.03 | 13.63 | |
3.20 | 1.08 | 38.31 | 1.21 | 0.47 | 0.11 | 3.81 | |
12.70 | 3.15 | 88.59 | 1.65 | 4.25 | 1.19 | 9.97 | |
13.40 | 1.27 | 45.94 | 1.58 | 1.10 | 0.63 | 5.35 | |
5.15 | 9.21 | 95.71 | 1.90 | 0.36 | 0.27 | 13.81 | |
4.80 | 5.17 | 74.13 | 2.17 | 1.53 | 1.09 | 11.06 | |
12.00 | 11.92 | 121.17 | 1.87 | 1.88 | 1.08 | 18.12 | |
9.00 | 14.72 | 168.36 | 1.74 | 0.76 | 0.83 | 20.54 | |
5.70 | 13.23 | 110.37 | 2.17 | 2.76 | 1.62 | 20.59 | |
5.80 | 5.49 | 92.91 | 2.39 | 1.31 | 0.95 | 11.77 | |
5.85 | 3.23 | 57.26 | 1.84 | 1.38 | 1.70 | 8.66 | |
8.00 | 3.10 | 74.50 | 2.31 | 0.86 | 1.32 | 8.98 | |
8.00 | 1.41 | 32.96 | 0.86 | 0.53 | 0.39 | 3.73 | |
3.30 | 1.37 | 53.36 | 0.85 | 0.33 | 0.23 | 3.71 | |
3.20 | 1.12 | 40.50 | 1.44 | 0.15 | 0.05 | 4.04 | |
Weighted Averages | 6.1 | 5.20 | 68.69 | 1.53 | 1.38 | 0.97 | 9.86 |
Length (metres) | 130 |
Table 3: Summary Assays from Atenea 3400 Level — Hanging Wall Split
Width | Au | Ag | Cu | Pb | Zn | Au-Eq. | |
Metres | g/t | g/t | % | % | % | g/t | |
3.75 | 0.41 | 37.37 | 1.26 | 0.78 | 0.29 | 3.49 | |
3.00 | 1.01 | 99.53 | 0.99 | 0.56 | 0.33 | 4.37 | |
5.45 | 2.41 | 86.65 | 1.13 | 0.47 | 0.48 | 5.85 | |
10.80 | 3.06 | 49.37 | 1.22 | 0.89 | 0.89 | 6.65 | |
8.00 | 4.66 | 58.36 | 1.66 | 1.96 | 0.77 | 9.58 | |
4.90 | 2.08 | 65.51 | 1.56 | 4.49 | 2.09 | 9.12 | |
Weighted Averages | 6.0 | 2.74 | 63.18 | 1.33 | 1.52 | 0.86 | 7.00 |
Length (metres) | 70 |
Project Background
Lupaka’s Invicta Gold Project is a polymetallic development project located approximately 120 kilometres north of Lima, Peru. A Preliminary Economic Assessment (PEA) was completed on the project by SRK Consulting (Canada) Inc. March 1, 2018 which evaluated the economic viability of underground extraction of the Indicated and Inferred Mineral Resources from the Atenea Vein close to the existing 3,400 Level adit (up to 130 metres above the 3400 Level) utilizing a sub-level long hole open stoping mining method supported by initial toll treatment processing options. The PEA has robust economics with the following highlights:
The PEA considers only part of the reported Mineral Resource (the Atenea Vein close to existing infrastructure) with the objective of generating positive cash flow from a low-cost operation while simultaneously re-investing in and further evaluating the deposit to potentially expand production in the future.
The PEA is preliminary in nature and includes Inferred Mineral Resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as Mineral Reserves, and there is no certainty that the PEA will be realized.
Quality Control and Assurance
The analyses for this sampling campaign were carried out by ALS, an accredited laboratory, in Lima, Peru, exercising a thorough Quality Assurance and Control program. As part of QA/QC protocol, duplicates, standards and blanks were inserted into the sample processing stream. The sample locations were mapped, surveyed and photographed for reference. Individual sample channels vary between 0.2 to 2.5 metres wide. Samples were bagged, sealed and delivered to the ALS sample preparation facility in Lima, Peru. Gold was assayed by a 50-gram fire assay and re-assayed for the overlimits, with an AAS finish. All ALS labs are ISO 9000 registered.
Technical Report
Further information about the PEA and the resource estimate referenced in this news release, including data verification, key assumptions, parameters, risks and other factors, will be provided in a technical report prepared following Canadian Securities Administrators’ National Instrument (NI) 43-101 and Form 43-101F1 guidelines for the Invicta Project that the Company will file on SEDAR (www.sedar.com) within 45 days from March 1, 2018.
Neither the TSX Venture Exchange nor its Regulation Service Provider (as the term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy of this news release.
About Lupaka Gold
Lupaka is an active Canadian-based company focused on creating shareholder value through discoveries and strategic development of its assets in some of the most prolific mining regions of Peru.
Invicta Gold Development Project
100% owned, the Company’s flagship project is an advanced stage gold-copper polymetallic underground deposit located approximately 120 kilometres north of Lima. Over $12 million of capital has been spent by previous owners on development and infrastructure at Invicta, and management expects to commence potential production in the second half of 2018 by using third-party mining contractors and utilizing the existing adit and workings. The Invicta project is fully permitted and community agreements are in place.
The potential underground operation will be focused on underground extraction of Indicated Mineral Resources and Inferred Mineral Resources from the Atenea vein within close proximity to the existing 3400 Level adit (up to 130 metres above the 3400 Level).
Invicta’s approved EIA allows for mine production of up to 1,000 tpd, although the current mining plan is targeting 350 tpd.
Cautionary Note Regarding the Invicta Production Decision
The decision to commence potential production at the Invicta Gold Project and the Company’s plans for a mining operation as referenced herein (the “Production Decision and Plans“) are based on economic models prepared by the Company in conjunction with management’s knowledge of the property and the existing estimate of Indicated and Inferred Mineral Resources on the property, supplemented by the 2018 PEA. The Production Decision and Plans were not based on a preliminary economic assessment, a pre-feasibility study or a feasibility study of mineral reserves demonstrating economic and technical viability. Accordingly, there is increased uncertainty and economic and technical risks of failure associated with the Production Decision and Plans, in particular the risk that mineral grades will be lower than expected, the risk that construction or ongoing mining operations are more difficult or more expensive than expected, the risk that the Company will not be able to transport or sell the mineralized material it produces to local custom toll mills on the terms it expects, or at all; production and economic variables may vary considerably, due to the absence of a detailed economic and technical analysis according to and in accordance with NI 43-101.
Josnitoro Gold Project
the Company holds an option to earn a 65% interest on this project from Hochschild Mining PLC. The project is located approximately 800 kilometres by road southeast of Lima in the Department of Apurimac, southern Peru, within the Andahuaylas-Yaury Belt, in which the Las Bambas mine (MMG Limited) and the Constancia mine (HudBay Minerals) are located. Historical work on the disseminated gold zones includes over 170 shallow drill holes and extensive surface trenching, as well as artisanal mining.
About SRK Consulting (Canada) Inc.
SRK Consulting (Canada) Inc. form part of the SRK Consulting Group which is an independent, international consulting company that provides focused advice and solutions to clients, mainly from earth and water resource industries. Formed in 1974, SRK now employs more than 1,400 professionals in over 40 offices on 6 continents. Among SRK’s 1,500 clients are most of the world’s major- and medium-sized metal and industrial mineral mining houses, exploration companies, banks, petroleum exploration companies, construction firms and government departments.
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