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Excellon Drills 3,043 g/t Silver Equivalent Over 2.2 Metres at Platosa

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Excellon Drills 3,043 g/t Silver Equivalent Over 2.2 Metres at Platosa






Excellon Resources Inc. (TSX: EXN) (NYSE: EXN) (FRA: E4X2) is pleased to announce results from underground drilling at the Platosa Mine in Durango, Mexico.




  • High-grade results from the 623, NE-1, NE-1S, and Pierna mantos, with diamond drilling results from underground including:
    • 3,043 g/t silver equivalent over 2.2 metres (2,160 g/t Ag, 24.6% Pb, 7.2% Zn) in EX21UG698;
    • 764 g/t AgEq over 7.5 metres (648 g/t Ag, 2.6% Pb, 1.4% Zn) in EX21UG691;
    • 1,008 g/t AgEq over 3.4 metres (766 g/t Ag, 4.7% Pb and 3.5% Zn) in EX21UG733;
    • 801 g/t AgEq over 3.4 metres (501 g/t Ag, 5.8% Pb, 4.4% Zn) in EX21UG709;
    • 5,110 g/t AgEq over 0.5 metres (4,451 g/t Ag, 8.8% Pb, 12.2% Zn and 0.2 g/t Au) in EX21UG706;
    • 903 g/t AgEq over 2.6 metres (523 g/t Ag, 3.5% Pb, 8.5% Zn) in EX21UG740;
  • Underground drilling continues to define and delineate mineralization to support mine planning;
  • Follow-up drilling on vertical zone intersected in hole EX21UG690 (2,860 g/t AgEq over 7.5 metres) is underway with assays pending.


“Drilling at Platosa continues to define and extend high-grade mineralization ahead of production,” stated Jorge Ortega, Vice President Exploration. “We continue to focus on infill drilling to support planning for upcoming and future production, as well as testing the recently discovered high-grade zone – the 817 Zone – below Manto 623. We have now drilled an additional 20 holes on the 817 Zone with assays pending. This zone appears to have a vertical orientation and has the potential to open up a more vertical dimension to the deposit.”


Exploration Results


The following table shows highlighted intervals from the current definition and infill program being conducted from underground at Platosa:



Hole ID(1) Interval(2) Interval(3) Ag Pb Zn Au AgEq(4) Area
From To metres g/t % % g/t g/t
EX21UG691 31.5 39.0 7.5 648 2.6 1.4 764 623
EX21UG698 64.3 66.5 2.2 2,160 24.6 7.2 3,043 NE-1S
EX21UG706 44.6 45.1 0.5 4,451 8.8 12.2 0.2 5,110 Pierna
EX21UG709 42.9 46.3 3.4 501 5.8 4.4 801 Pierna
EX21UG711 26.2 27.1 0.9 1,310 9.8 4.2 0.1 1,718 623
EX21UG716 54.4 55.8 1.4 585 4.5 3.0 806 NE-1
EX21UG719 40.8 41.5 0.7 288 1.8 6.3 550 NE-1S
EX21UG733 84.4 87.8 3.4 766 4.7 3.5 1,008 NE-1
EX21UG738 64.6 66.1 1.5 445 3.9 7.4 801 NE-1
EX21UG740 63.1 65.8 2.7 523 3.5 8.5 903 NE-1
EX21UG742 65.8 67.7 1.9 327 4.0 12.8 869 NE-1
EX21UG743 64.5 65.1 0.6 748 0.8 4.2 914 NE-1
(1) Highlighted intervals include holes intersecting >0.5m and over 500 g/t AgEq from a total of 22 drill holes (1,550 metres)
(2) From-to intervals are measured from the drill collar. All holes were drilled from underground stations.
(3) All intervals are reported as core length with true width estimated to range from 50-90% of core length.
(4) AgEq in drill results assumes $24.00 Ag, $0.90 Pb, $1.20 Zn and $1,800 Au with 100% metallurgical recovery.


Drilling from underground continues to define and expand known mineralization ahead of production at the 623, NE-1, NE-1S, and Pierna Mantos. Drilling at Platosa will continue to target areas ahead of production and test the extent of mineralization around mine workings.


Drilling to follow up on the hole EX21UG690, which intersected a wide high-grade interval that has a potential vertical orientation (see press release dated October 5, 2021) is currently underway, with assay results pending.


Technical Information and Quality Control Notes


The drilling results contained in this news release have been prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects.


Platosa drill core samples are prepared and assayed by SGS Minerals Services in Durango, Mexico. The lab is accredited to ISO/IEC 17025. Assay turnarounds have been impacted recently by supply and labour shortages related to COVID-19. The Company has a comprehensive QA/QC program, supervised by an independent Qualified Person.


The sampling of, and assay data from, the core sampling and reporting is monitored through a quality assurance and quality control program designed according to best industry practice.  Samples from HQ sized drill core are selected by Excellon geologists and cut into halves at the project site. Half of the core is retained at the site for reference purposes. Sample intervals vary from 0.3 to 1.5 metres in length with samples being selected to honour geological contacts. Samples are labeled and packed into sealed plastic bags which are grouped into larger fiber bags for shipping. A formal chain-of-custody procedure is in place for security of samples from project to laboratory.


Samples are shipped to SGS Laboratories in Durango City. Samples then undergo crushing to two millimetres followed by pulverizing to homogenize samples before a 50-gram sub sample is selected for analysis. The samples are then analyzed using fire assay for gold and silver with a gravimetric finish and multi-element analysis performed by ICP analysis for base metals and multi-element data.


Qualified Person


Jorge Ortega, P.Geo., Vice President Exploration, has acted as the Qualified Person, as defined in NI 43-101, with respect to the disclosure of the scientific and technical information contained in this press release.


About Excellon


Excellon’s vision is to create wealth by realizing strategic opportunities through discipline and innovation for the benefit of our employees, communities and shareholders. The Company is advancing a precious metals growth pipeline that includes: Platosa, Mexico’s highest-grade silver mine since production commenced in 2005; Kilgore, a high-quality advanced exploration gold project in Idaho with strong economics and significant growth and discovery potential; and an option on Silver City, a high-grade epithermal silver district in Saxony, Germany with 750 years of mining history and no modern exploration. The Company also aims to continue capitalizing on current market conditions by acquiring undervalued projects.



PLATOSA MINE – UG Infill and Expansion Drilling (CNW Group/Excellon Resources Inc.)


Posted October 26, 2021

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