Aftermath Silver Reports More Surface High Grade Silver and Copper Results
Vancouver, British Columbia--(Newsfile Corp. - February 11, 2025) - Aftermath Silver Ltd. (TSXV: AAG) (OTCQX: AAGFF) (the "Company" or "Aftermath Silver") is pleased to provide assay results from its Phase 2 diamond drill program at the Berenguela silver-copper-manganese deposit located in the Department of Puno in southern Peru.
Results are included for another 23 holes from the planned 60-hole (4,600m) program of diamond core drilling. Additional holes will be released pending overlimit check assays. Highlights of the current drilling include:
- AFD071 intersected 23.6m @ 319g/t Ag + 2.19% Cu + 17.43% Mn from 2.6m down hole
- AFD109 intersected 27.4m @ 187g/t Ag + 0.97% Cu + 5.13% Mn from surface including an intercept of 5.6m @ 410g/t Ag + 1.21% Cu + 5.81% Mn from 10.45m downhole.
- AFD111 intersected 10.1m @ 273g/t Ag + 0.90% Cu + 4.11% Mn from surface
Ralph Rushton, President and CEO, commented "We are very pleased with the second batch of results from our Phase 2 drill program. Holes AFD064 to 077 were geological investigation holes, sited to test a roughly north-south striking zone of faulting within the mineral resource. Holes 105 to 113 are resource infill holes toward the eastern side of the resource in an area known as the east-central anticline which were designed to convert inferred to measured and indicated resources. They are in line with the previous drilling in this area and will be incorporated into a revised block model."
Full results are given for 23 holes in the table below and a table of collar coordinates and hole azimuths is appended at the end of this release. Drill collar plans and cross sections are available at this link: https://aftermathsilver.com/projects/berenguela/plans-and-sections/
Drilling was carried out at a high angle to mineralization controls and intersections are assumed to equate to true thickness. Drill sections are available on Aftermath's website (www.aftermathsilver.com) or by clicking here. The weighted average core recovery in the mineralized intersections was 92%. Some lower recoveries were returned close to surface (0 to 5m) in initial drilling runs, and around some underground workings. The geology of each hole is summarised at the end of this release.
Table 1. Assay results, holes AFD064- AFD077 & AFD105 - AFD113
| Hole | From | To | Width1 (m) | Ag g/t | Cu % | Mn % | Zn % | Recovery (%) | Voids(m)* |
| Central Fault Zone Holes | |||||||||
| AFD064 | 0.00 | 8.55 | 7.65 | 27 | 0.50 | 6.92 | 0.54 | 61.3 | 0.9 |
| and | 21.30 | 31.90 | 10.60 | 34 | 1.12 | 1.62 | 0.11 | 87.7 | - |
| AFD065 | 0.00 | 6.15 | 4.95 | 26 | 0.39 | 9.98 | 0.76 | 90.7 | 1.2 |
| and | 44.40 | 54.70 | 10.30 | 17 | 0.47 | 3.89 | 0.50 | 100.0 | - |
| AFD066 | 0.00 | 7.30 | 7.30 | 69 | 0.91 | 6.32 | 0.50 | 100.0 | - |
| and | 19.40 | 26.10 | 6.70 | 95 | 0.78 | 11.74 | 0.89 | 100.0 | - |
| and | 32.10 | 45.70 | 12.70 | 69 | 1.02 | 18.43 | 0.53 | 100.0 | 0.9 |
| and | 51.10 | 63.70 | 11.60 | 44 | 0.87 | 16.34 | 0.50 | 100.0 | 1.0 |
| AFD067 | 8.20 | 23.00 | 13.40 | 37 | 0.59 | 4.83 | 0.26 | 100.0 | 1.4 |
| and | 45.00 | 51.90 | 6.90 | 52 | 0.90 | 10.65 | 0.48 | 100.0 | - |
| AFD068 | 0.00 | 8.20 | 8.20 | 79 | 1.34 | 10.21 | 0.49 | 83.3 | - |
| AFD069 | 0.00 | 8.40 | 8.40 | 76 | 1.41 | 11.96 | 0.54 | 77.4 | - |
| AFD070 | 1.80 | 29.20 | 27.40 | 75 | 0.97 | 10.42 | 0.34 | 95.3 | - |
| AFD071 | 8.00 | 31.60 | 23.60 | 319 | 2.19 | 17.43 | 0.51 | 68.3 | - |
| AFD072 | 2.60 | 34.20 | 31.60 | 63 | 1.23 | 15.97 | 0.55 | 85.0 | |
| Inc | 24.30 | 35.65 | 7.35 | 87 | 1.67 | 31.30 | 0.76 | 94.9 | - |
| AFD073 | No significant mineralization | - | |||||||
| AFD074 | 0.00 | 9.10 | 9.10 | 101 | 0.59 | 6.30 | 0.35 | 51.7 | - |
| AFD075 | 0.00 | 10.95 | 10.95 | 104 | 0.57 | 6.55 | 0.34 | 58.0 | - |
| AFD076 | 0.00 | 17.80 | 17.80 | 118 | 0.15 | 1.81 | 0.11 | 87.6 | - |
| AFD077 | 0.00 | 11.60 | 11.60 | 84 | 0.16 | 1.31 | 0.09 | 69.5 | - |
| Eastern Central Anticline Holes | |||||||||
| AFD105 | 0.00 | 9.90 | 9.90 | 128 | 1.05 | 15.07 | 0.59 | 86.1 | - |
| AFD106 | 0.00 | 12.50 | 12.50 | 34 | 0.88 | 13.37 | 0.45 | 92.9 | - |
| AFD107 | 0.00 | 29.40 | 26.40 | 32 | 1.03 | 9.99 | 0.34 | 76.0 | 3.0 |
| AFD108 | 0.00 | 23.20 | 23.20 | 163 | 1.06 | 3.26 | 0.41 | 97.9 | - |
| and | 30.70 | 72.95 | 42.25 | 66 | 0.92 | 3.68 | 0.25 | 100.0 | - |
| and | 82.20 | 101.40 | 19.20 | 62 | 1.00 | 4.84 | 0.23 | 100.0 | - |
| AFD109 | 0.00 | 27.35 | 27.35 | 187 | 0.97 | 5.13 | 0.60 | 100.0 | - |
| Inc | 10.45 | 16.05 | 5.60 | 410 | 1.21 | 5.81 | 0.67 | 100.0 | - |
| and | 63.00 | 79.55 | 16.55 | 75 | 0.33 | 1.82 | 0.19 | 100.0 | - |
| AFD110 | 0.00 | 24.65 | 24.65 | 83 | 0.85 | 4.50 | 0.52 | 95.3 | - |
| and | 31.45 | 62.50 | 31.05 | 56 | 0.90 | 6.30 | 0.43 | 100.0 | - |
| and | 66.50 | 71.50 | 5.00 | 67 | 0.59 | 0.75 | 0.05 | 100.0 | - |
| and | 85.65 | 106.50 | 20.85 | 125 | 0.66 | 3.55 | 0.27 | 96.8 | - |
| AFD111 | 0.00 | 10.10 | 10.10 | 273 | 0.90 | 4.11 | 0.66 | 97.2 | - |
| and | 36.85 | 57.00 | 20.15 | 139 | 0.65 | 4.18 | 0.48 | 95.2 | - |
| AFD112 | 0.00 | 4.1 | 4.1 | 91 | 0.92 | 6.81 | 0.89 | 100.0 | - |
| AFD113 | 0.00 | 41.00 | 41.00 | 47 | 0.50 | 3.04 | 0.32 | 99.3 | - |
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| *Reported intersection widths are shorter than total widths drilled where voids due to historic underground mining activity were encountered during drilling. Voids were measured and discounted from the intersection width with no dilution of the reported grades. In AFD064, voids of 0.9m were encountered in areas of near-surface workings resulting in an intersection width of 7.65m. In AFD065, a void of 1.2m was encountered in a near-surface workings resulting in an intersection width of 4.95m. In AFD066, voids of 0.9m and 1.00m were encountered in areas of underground workings resulting in intersection widths of 12.70m and 11.60m respectively. In AFD067, a void of 1.40m was encountered in a near-surface workings resulting in an intersection width of 13.40m. In AFD0107, voids 1.5m were encountered in in areas of underground workings resulting in an intersection width of 26.40m. Berenguela mining: from 1913 until 1965 approximately 500,000 tons was mined from 17,700m of underground workings and open pit operations which equates to roughly 1.2% of the 2023 M&I resource inventory. Aftermath obtained complete plans of underground workings which were incorporated into resource modelling where practical and appropriate and underground mining depletion subtracted from the mineral resource. All open pits have been surveyed in detail as part of the general site layout that defines topography and surface mining depletion.1 The drilling was carried out at a high angle to the stratigraphically controlled mineralization and intersections can be assumed to equate approximately to true thickness. | |||||||||
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Objectives of Drilling
Holes AFD064 to AFD077 targeted the transition zone between Domain 1 to the west and Domain 2 to the east, a structurally complex zone with faulting parallel to section lines. Drilling was designed to aid in the structural interpretation of the area and increase indicated and/or measured resources where appropriate.
Holes AFD105 to 107 and AFD108 to AFD113 were drilled in the eastern synform and antiform (respectively) and were designed to extend and define the margin of mineralization whilst converting inferred resources to indicated and/or measured categories where appropriate.
Geology
The host stratigraphy at Berenguela comprises folded thickly bedded, light grey limestones and dolomitized limestones. Several large bodies of black massive, patchy, and fracture-controlled manganese oxide replacement mineralization with associated silver, copper, and zinc enrichment, occur in the folded limestones. Mineralization largely follows stratigraphy and is typically conserved as eroded synform or antiform remnants, usually exposed at surface and with fold axes trending 105-120 degrees. The limestone is underlain by a transitional arenite unit overlying evaporites in footwall formations.
Historical mapping and resource modelling shows the mineralization to extend for roughly 1,300m along strike - including a previous 100m gap or discontinuity now closed by drilling announced in this release - with a width of 200 to 400m. The drilling was carried out at a high angle to the stratigraphically controlled mineralization and intersections are approximately true thickness. The geology of each hole is summarised at the end of this release.
QA/QC
Sample preparation and assaying was carried out in Peru by ALS Peru S.A ("ALS"). ALS preparation facilities in Arequipa and assaying facilities in Lima both carry ISO/IEC 17205 accreditation. Logging and sampling were carried out by Aftermath geological staff at the Limon Verde camp in Santa Lucia. Samples were transported to Arequipa and delivered to ALS for preparation and subsequent assaying of pulps in Lima.
During the preparation stage, quartz-washing was performed after each sample to prevent carry-over contamination. Initial assaying was done using a four-acid digestion and ICP-AES multielement analysis for 31 elements. Over limit samples (Ag > 100 g/t, Mn>8,000 ppm, Cu/Zn >10,000ppm) were reanalysed using 4 acid-digestion and ore-grade ICP-AES analysis. Any Ag samples reporting >1,500 g/t Ag are further analysed using fire assay with gravimetric finish. Any Ag samples reporting >10,000 g/t are further analysed using concentrate assay methods.
A selection of pulps will be submitted to an umpire laboratory to perform check analyses and verify QA/QC implemented in the project. Every batch of 20 samples submitted for assay contained 1 certified reference material (CRM), 1 coarse blank, 1 pulp blank and 1 duplicate core sample, OR 2 CRMs, 1 coarse blank, 1 duplicate core sample. Aftermath commissioned OREAS to prepare 3 different CRMs made from samples of Berenguela mineralization, so they are compositionally matched to the mineralized core. In the assays performed for this news release, 132 CRMs and 30 coarse blanks were inserted and 4 elements checked (Ag/Cu/Mn/Zn) - a total of 708 checks in total.
The CRMs generally performed well, and 11 CRM fails were observed in total, mostly in the lower ranges for Zn. No fails were reported for Ag and one for low-range Mn. Mid-range Cu CRMs reported to specification limits. High grade Cu, Mn, and Ag CRMs reported to specification limits. All pulp blanks and coarse blanks reported to specification limits. 61 duplicate samples were submitted and >80% reported repeat assays with a difference
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