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Atico Continues to Intercept High Grades Including 204 g/t Au, 486 g/t Ag and 17% Cu, Over 1.45 Meters and Confirms Third VMS Lens at La Plata, Ecuador

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Atico Continues to Intercept High Grades Including 204 g/t Au, 486 g/t Ag and 17% Cu, Over 1.45 Meters and Confirms Third VMS Lens at La Plata, Ecuador

 

 

 

 

 

Atico Mining Corporation (TSX-V: ATY) (OTC: ATCMF) is pleased to update its shareholders on the positive advances of its drilling program at the La Plata precious metals-rich volcanogenic massive sulphide project in Ecuador.

 

La Plata Drilling Highlights Include:

 

Hole From (m) To (m) Interval (m) Au (g/t) Ag (g/t) Cu (%) Zn (%)
CMLP-20-109* 296.77 301.8 5.02 11.46 177.26 0.83 8.10
and 306.89 311.4 4.53 1.59 26.61 3.17 7.08
CMLP-20-136 123.32 138.2 7.38 4.43 60.24 3.76 6.32
CMLP-20-137 86.55 89.95 3.40 87.90 247.9 8.59 2.56
including 86.55 88.00 1.45 204.0 485.9 17.4 4.18

 

True widths are dependent on uncertainties in the local strike and dip of the mineralization and are estimated to be between 76% and 83% of the drill intercept.

* Hole was drilled in the south block and used for new metallurgical testing

  • New drilling reports confirmation of a third lens at the Guatuza target within a larger VMS system.
  • Infill drilling of the North Block reports additional high grade VMS intercepts.
  • Resource expansion drilling reports positive results in North Block.

 

Alain Bureau, Atico’s President, commented: “As VMS deposits tend to occur in clusters, we are seeing significant evidence that this project is no exception to this thesis. The drill rigs will keep turning during for rest of 2020 and all of 2021 as good results keep coming and confirming the possibility of adding significant tonnage with the discovery of a third lens.”

 

Third lens confirmed and larger VMS footprint revealed

 

Last week’s drill holes reported significant massive sulfide intercepts at the Guatuza target, confirming mineralization continuity of the previously completed surface trenching executed some 210 meters from the La Mina deposit. This exercise confirms a third lens within the La Mina structure. The new drill holes completed on this target area called Guatuza, intercepted a significant mineralization showing thickness of various meters of massive sulfides and semi-massive sulfides which continued by crossing through a stockwork zone directly below. The cores have been immediately logged, prepared and sent to Lima for their geochemistry analysis. Laboratories are working at full capacity at this moment and we are expecting certified results in due course.

 

Drill hole CMLP-20-128 was drilled through the North Block lens and pursued further to depth. It intercepted a very large halo of pyrite bearing quartz stockwork also presenting moderate chlorite-sericite alteration with presence of pyrite mineralization along the entire 163 meter intercept. These intercepts, forming a large halo, are typically associated to large tonnage VMS deposits reinforcing the geological premises of La Mina being part of a much larger VMS system.

 

2020 Infill Drilling Program

 

Hole number CMLP-20-137, drilled in the upper center zone of the North Bloc has confirmed the presence of very high-grade zones reporting 204 g/t gold, 486 g/t silver, 17.4% copper and 4.18% Zinc on 1.45m. This high grade zone is located inside a larger 3.4 meters VMS intercept. The 2020 La Plata exploration program is intended to infill the south and north blocks of the La Mina area while upgrading the known mineralized resources from the inferred category. This program is also designed to increase the known resources at the two main La Mina VMS lenses.

 

Resource expansion

 

Through recent drilling, the Atico exploration team has concentrated its efforts in understanding the continuity of mineralization between the three lenses (South, North and now Guatuza). Recent drilling has reported additional zones of mineralization located between those three previously identified lenses. Additional drilling is being completed at this moment and can possibly add significant mineralised tonnage to the existing polygons. These results also bring perspective options to the proposed underground mining plan.

 

Drill Program Assay Results:

 

 

          Intercept*          
Hole ID Azimuth
(°)
Dip
(°)
Total Length
(m)
From
(m)
To
(m)
Interval
(m)
Au
(g/t)
Ag
(g/t)
Cu
(%)
Pb
(%)
Zn
(%)
CMLP-20-109* 295 -68 329.49 296.77 301.8 5.02 11.46 177.26 0.83 3.15 8.10
and       306.89 311.4 4.53 1.59 26.61 3.17 0.53 7.08
CMLP-20-124 225 -68 130.09 85.34 89.3 3.96 0.96 10.23 1.00 0.05 1.15
and       107.21 112.2 3.59 0.24 2.38 1.25 0.03 0.04
CMLP-20-125 248 -57 137.53 119.47 122.95 3.48 0.57 7.00 0.80 0.07 1.35
CMLP-20-126 255 -45 100.03 75.43 77.06 1.63 0.46 5.00 1.69 0.01 0.52
and       86.05 89.16 3.11 0.68 8.19 1.69 0.02 1.21
CMLP-20-127 250 -42 133.17 No Significant Intercept
CMLP-20-128 310 -55 414.56 66.35 70.8 4.45 0.71 4.63 0.72 0.08 0.53
CMLP-20-129 265 -77 130.25 No Significant Intercept
CMLP-20-130 320 -79 151.20 Geotechnical Hole
CMLP-20-131 140 -57 76.10 No Significant Intercept
CMLP-20-132 288 -65 155.00 139.22 141.8 2.59 1.37 23.22 0.78 0.17 1.29
CMLP-20-133 185 -45 117.44 83.57 88.26 4.69 0.81 6.23 0.97 0.01 0.28
CMLP-20-134 286 -52 160.03 No Significant Intercept
CMLP-20-135 108 -80 94.45 85.23 86.08 0.85 0.18 5.00 1.50 0.04 0.21
CMLP-20-136 252 -66 152.66 123.32 130.7 7.38 4.43 60.24 3.76 0.70 6.32
CMLP-20-137 269 -40 99.11 86.55 89.95 3.40 87.90 247.9 8.59 0.13 2.56
including       86.55 88.00 1.45 204.0 485.9 17.4 0.26 4.18

 

True widths are dependent on uncertainties in the local strike and dip of the mineralization and are estimated to be between 76% and 83% of the drill intercept.
* Hole was drilled in the south block and used for new metallurgical testing

 

La Plata Project

 

Gold-bearing sulphide mineralization at La Plata occurs as compositional banding composed of chalcopyrite, sphalerite and pyrite laminae with barite occurring as clasts and also as layers. The mineralized lenses have also been dislocated by a few faults and dolerite dikes cutting the body.

 

The La Plata project is amongst the highest-grade gold-copper VMS deposits in which base and precious metal mineralization is interpreted to have formed as part of multiple volcanic episodes that created a stacked volcanic-exhalite hydrothermal sequence considered favorable for hosting additional VMS lenses. The recent drilling results in the southern portion of the deposit have encountered deeper mineralization, and an extension of mineralization to the north has been discovered by recent trenching results.

 

The La Plata independent Amended and restated NI 43-101 Preliminary Economic Assessment of the La Mina VMS Project Cotopaxi Province, Ecuador (“PEA”) originally dated March 30th, 2019, amended and restated July 17, 2019 was prepared by SGS Canada Inc. Mineral Services, Daniel Leroux, M.Sc., P.Geo. Brian Wolfe. M.Sc., MAIG, David Orava, P.Eng., Simon Meik, FAusIMM (CP), Qinghua (Jason) Jin, P.E and pursuant to National Instrument 43-101 (“NI 43-101”) and reports the La Plata inferred resources at 1.9 million tons at an average grade of 4.1 g/t Au, 49.4 g/t silver, 3.3% Cu, 4.5% Zn, 0.6% Pb as available on SEDAR. Preliminary economic assessments are preliminary in nature, that include 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 preliminary economic assessment will be realized. Such projects have increased uncertainty and risk of failure. Mineral resources that are not mineral reserves do not have demonstrated economic viability. 

 

The La Plata project consists of a concession covering a total area of 2,300 hectares along its 9-kilometer length, which contains known mineralization in two VMS lenses and nine priority exploration targets.

 

The Company has a binding option agreement with a private Ecuadorean company to earn up to 75% in the La Plata project, of which the first option to acquire the initial 60% ownership has been exercised. Please refer to the Company’s MD&A for the year ended December 31, 2019 for further details.

 

Quality Assurance & Quality Control

 

Before sampling, a centerline, representing bottom of hole (or a reference line when this is not known) is marked on the drill core. The core is cut and sampled, always sampling the right-hand side of the drill core. Samples are selected based on logged geological features, such as rock type, mineralization, alteration, veining etc. Sample length does not exceed 2.5 m nor is smaller than 20 cm. A total of 10% of the samples submitted are certified blanks and standards and field duplicates with, as a minimum, one blank submitted at the beginning of each sample batch. Certified standards are submitted at an average of 6% of the samples submitted. Field duplicates are taken at a rate of 1 in 20 of the samples taken. For all drill holes, analysis was completed by ALS Chemex in Lima – Peru with sample preparation completed in Quito. The lab is accredited with International Standards ISO/IEC 17025:2005 and ISO 9001:2015. All major ALS Geochemistry analytical laboratories are accredited to ISO/IEC 17025:2005 for specific analytical procedures.

 

Qualified Control

 

Dr. Michael Druecker, CPG, is a qualified person under NI 43-101 standards and independent of the company, is responsible for ensuring that the information contained in this news release is an accurate summary of the original reports and data provided to or developed by Atico Mining Corporation. Dr. Druecker has approved the scientific and technical content of this news release.

 

About Atico Mining Corporation

 

Atico is a growth-oriented Company, focused on exploring, developing and mining copper and gold projects in Latin America. The Company generates significant cash flow through the operation of the El Roble mine and is developing it’s high-grade La Plata VMS project in Ecuador. The Company is also pursuing additional acquisition of advanced stage opportunities.

 

Posted November 4, 2020

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