- Eloro Resources (ELO) is pleased to provide an update on its Iska Iska silver-tin polymetallic project
- The Iska Iska silver-tin polymetallic project is a road-accessible, royalty-free property in southern Bolivia
- Eloro has completed 57 diamond drill holes totalling 30,014 metres (m) to test major target areas at Iska Iska
- Three drill rigs are currently in operation at Iska Iska
- Every hole drilled at Iska Iska to date has encountered multiple mineralized intercepts
- Eloro Resources is an exploration and mine development company with a portfolio of gold and base-metal properties in Bolivia, Peru and Quebec
- Eloro Resources Ltd. (ELO) opened trading at C$3.74 per share
Eloro Resources (ELO) is pleased to provide an update on its Iska Iska silver-tin polymetallic project in Potosi Department, southern Bolivia.
To date, the company has completed 57 diamond drill holes including three in progress totalling 30,014 metres (m) to test major target areas at Iska Iska.
To date, every drill hole that has been assayed has returned multiple reportable mineralized intercepts.
Currently, three drill rigs are in operation at Iska Iska. Two surface drill rigs are completing drilling at SBBP in order to outline an initial National Instrument 43-101 (NI 43-101) compliant resource. A third drill, an underground rig, situated in the west end of the Santa Barbara Adit, is testing the eastern part of the SBBP and its mineralized envelope.
- 160.22 g Ag eq/t (36.53 g Ag/t, 1.63% Zn, 1.20% Pb and 0.10% Sn) over 194.14m from 168.85m to 362.99m in hole DHK-21, drilled from the west end of the Huayra Kasa underground workings at -70 degrees on section with discovery hole DHK-15, which intersected 129.60 g Ag eq/t over 257.5m. This intersection in Hole DHK-21 includes higher-grade portions of:
- 250.50 g Ag eq/t (51.31 g Ag/t, 3.35% Zn, 1.78% Pb and 0.10% Sn) over 18.24m from 238.21 to 256.45m;
- 257.40 g Ag eq/t (75.83 g Ag/t, 2.29% Zn, 2.40% Pb and 0.12% Sn) over 16.33m from 283.57 to 299.90m; and
- 350.91 g Ag eq/t (112.57 g Ag/t, 1.41% Zn, 3.08% Pb and 0.33% Sn) over 30.06m from 308.90 to 338.96m.
- 64% of this 512.9m long hole contains reportable intersections
- 94.68 g Ag eq/t (3.87 g Ag/t, 0.067 g Au/t, 1.63% Zn, 0.43% Pb and 0.05% Sn) over 169.93m from 124.66m to 294.59m in hole DHK-22, drilled to the south-southwest at -60 degrees from the west end of the Huayra Kasa underground workings to test the eastern side of the SBBP. This intersection included a higher-grade zone that graded 158.64 g Ag eq/t (9.35g Ag/t, 0.016 g Au/t, 3.43% Zn, 0.71% Pb and 0.03% Sn) over 29.84m from 135.20m to 165.04m. 49% of this 600m long hole contained reportable intersections.
Tom Larsen, CEO of Eloro commented,
“Once again Dr Bill Pearson, Dr Osvaldo Arce and the technical team at Iska Iska are delivering with drill hole DHK-21 demonstrating a major intersection over 190 metres long with an average grade of 160.22 g Ag eq/t including up to 350.91 g Ag eq/t over 30.06 metres with significant silver of 112.57g Ag/t. This hole is the highest-grade hole yet within the prolific Santa Barbara Breccia Pipe and surrounding mineralized envelope. In addition, the latest step out holes to the northwest are demonstrating added mineralization, extending the strike length beyond the 1200 m that was initially reported.”
Mr. Larsen continued,
“Due to the positive results to date from our drill campaign, initial engineering studies to establish potential economic parameters for mineral resource definition will commence shortly, with a site visit having already been completed by a top Peruvian Engineering firm. More detailed metallurgical studies are also planned.”
Dr. Bill Pearson, P.Geo., Eloro’s Executive Vice President Exploration, commented,
“While we are focusing on drilling in the SBBP area, it is important to emphasize that this target is only part of an enormous, mineralized area in the Iska Iska Caldera Complex. We continue to obtain multiple reportable intersections in all holes that we have released. Other major targets, including the Central and Porco Breccia Pipes, require much further drilling in order to fully evaluate them. Our downhole Induced Polarization survey is advancing well, and we hope that this survey will help better define the geometry of the mineralization, especially the higher grade zones with greater sulphide content.”
Dr. Osvaldo Arce, P.Geo., General Manager of Minera Tupiza, said,
“While radial drilling at Santa Barbara was very useful for defining the general extent of the breccia pipe and mineralized envelope, more focused directed drilling is now being carried out to confirm the orientation of the mineralized zones.
A preliminary structural analysis of the deposit shows a clear NW-SE trend of mineralization, which has been confirmed by the drilling of the step-out holes. Hole DSB-09 which intersected a series of relatively short, mineralized intervals from 1.5m to 15m long appears to have been drilled parallel to this structural trend hence is not likely representative of the grade and extent of the mineralization in the western part of SBBP.
Surface drill holes in progress with azimuths to the southwest across these structures will provide a more representative sampling of this mineralization. It is also clear that the deposit displays both lateral and vertical zonation of metals both within the breccia pipe and in the surrounding envelope. Work is in progress to more accurately model this zonation which will be important for mineral resource estimation.”
Note: True width of the mineralization is not known at the present time, but based on the current understanding of the relationship between drill orientation/inclination and the mineralization within the breccia pipes and the host rocks such as sandstones and dacites, it is estimated that true width ranges between 70% and 90% of the down hole interval length but this will be confirmed by further drilling. Percentage metal contents are shown for each element.
Total drilling completed since the start of the program on September 13, 2020, is 30,014m in 57 holes including 3 holes in progress (19 underground holes and 38 surface holes).
About Iska Iska
The Iska Iska silver-tin polymetallic project is a road-accessible, royalty-free property, wholly controlled by the Title Holder, Empresa Minera Villegas S.R.L. The project is located 48 km north of Tupiza city, in the Sud Chichas Province of the Department of Potosi in southern Bolivia.
Eloro has an option to earn a 99% interest in Iska Iska.
Eloro began underground diamond drilling from the Huayra Kasa underground workings at Iska Iska on September 13, 2020. On November 18, 2020, Eloro announced the discovery of a significant breccia pipe with extensive silver polymetallic mineralization just east of the Huayra Kasa underground workings and a high-grade gold-bismuth zone in the underground workings. On November 24, 2020, Eloro announced the discovery of the Santa Barbara Breccia Pipe (“SBBP”) approximately 150m southwest of the Huayra Kasa underground workings.
On January 26, 2021, Eloro announced significant results from the first drilling at the SBBP including the discovery hole DHK-15 which returned 129.60 g Ag eq/t over 257.5m (29.53g Ag/t, 0.078g Au/t, 1.45%Zn, 0.59%Pb, 0.080%Cu, 0.056%Sn, 0.0022%In and 0.0064% Bi from 0.0m to 257.5m. Subsequent drilling has confirmed significant values of Ag-Sn polymetallic mineralization in the SBBP and the adjacent Central Breccia Pipe (“CBP”). The SBBP thus far extends 800m along strike by 400+m wide and extends to at least 700m depth. CBP extends for 700m along strike by 400+m wide and extends to at least 900m deep.
A substantive mineralized envelope that is open along strike and down-dip extends around the breccia pipes. Continuous channel sampling of the Santa Barbara Adit located to the east of SBBP returned 442 g Ag eq/t (164.96 gAg/t, 0.46%Sn, 3.46% Pb and 0.14% Cu) over 166m including 1,092 g Ag eq/t (446 g Ag/t, 9.03% Pb and 1.16% Sn) over 56.19m. The west end of the adit intersects the end of the SBBP.
On May 4, 2021, Eloro released results from the first drill hole on the CBP. Hole DCN-01 intersected multiple mineralized intercepts including 196.09 g Ag eq/t (150.25 g Ag/t, 0.10% Sn and 0.05 g Au/t) over 56.2m and containing 342.98 g Ag eq/t (274.0 g Ag/t, 0.16% Sn and 0.16 g Au/t) over 27.53m.
On May 26, 2021 Eloro released results from Hole DSB-07 drilled at -60 degrees to a depth of 683.4m to the southeast from the radial drill platform on SBBP which intersected multiple mineralized intercepts including:
- 122.66 grams silver equivalent/tonne (“g Ag eq/t”) (35.05 g Ag/t, 0.72% Zn, 0.61% Pb, 0.11% Sn and 0.06 g Au/t) over 123.61m from 236.60m to 360.21m including 205.74 g Ag eq/t (92.30 g Ag/t, 0.57% Zn, 0.85% Pb,0.18% Sn and 0.07 g Au/t) over 32.32m, from 317.21m to 349.53m.
- 105.41 g Ag eq/t (8.55 g Ag/t, 1.01% Zn, 0.48% Pb, 0.06% Sn and 0.38 g Au/t) over 173.58m from 449.87m to 623.45m including 199.77 g Ag eq/t (21.90 g Ag/t, 1.18% Zn, 0.93% Pb 0.12% Sn and 0.94 g Au/t) over 39.08m, from 551.19m to 590.27m.
- 146.19 g Ag eq/t (1.70 g Ag/t, 0.00% Zn, 0.01% Pb, 0.42% Sn and 0.02 g Au/t) over 10.20m from 171.60m to 181.80m in the oxide zone indicating potential for significant Sn mineralization in this strongly leached nearer surface zone.
- In aggregate, 64% of this 683.4m long hole returned reportable mineralized intervals.
Eloro reported additional multiple holes with significant silver-tin polymetallic Intercepts in the SBBP and CBP on July 6, 2021, including:
- Hole DSB-08, testing the northeast quadrant of the SBBP, encountered eighteen reportable mineralized intercepts beginning near surface to its terminus at 614.4 m. The longest intercept was 69.89 g Ag eq/t over 252.89m from 355.12 to 608.02m including several higher-grade sections of 196.60 g Ag eq/t including 131.13 g Ag/t over 14.52m, 134.62 g Ag eq/t including 93.25 g Ag/t over 21.08m and 145.35 g Ag eq/t including 2.38% Zn over 10.11m.
- Hole DSB-10, testing the southwest quadrant of the SBBP and northern part of the CBP, encountered twenty-nine reportable mineralized intercepts beginning near surface to its terminus at 1,019.4m. Tin was notably elevated in many intervals suggesting proximity to a mineralizing intrusive source in this area. Notable intercepts include 114.96 Ag eq/t including 0.325% tin (Sn) over 56.2m from 322.18m to 378.30m including a higher-grade section of 187.98 g Ag eq/t including 0.535% Sn over 28.86m, 80.71 g Ag eq/t including 0.213% Sn over 74.39m from 474.86 to 549.25m and 118.69 g Ag eq/t over 10.77m from 829.97 to 840.74m.
On July 28, 2021, Eloro reported results from hole DHK-18, drilled due south at -10 degrees from the west drill bay in the Huayra Kasa underground workings, to test the mineralized envelope of the SBBP. This hole intersected 129.65 g Ag eq/t (18.38 g Ag/t, 2.14% Zn, 0.67%Pb, and 0.047% Sn) over 300.75m from 65.14m to 365.91m, including higher grade intervals of 215.54 g Ag eq/t over 72.76m, 163.35 g Ag eq/t over 31.83m and 224.48 g Ag eq/t over 19.39m. This hole intersected significant mineralization approximately 230m below the eastern part of the Santa Barbara adit from which previously reported continuous channel sampling returned 442 g Ag eq/t over 166m (see press release April 13, 2021). 82% of this 446.5m long hole contained reportable intervals.
On September 7, 2021 assay results were reported from a further four (4) additional four holes which tested the mineralized envelope of the Santa Barbara Breccia Pipe (“SBBP”) and the central-southern part of the Central Breccia Pipe (“CBP”), including;
- Hole DHK-20, drilled from the west end of the Huayra Kasa underground workings at -50 degrees on section with hole DHK-18, which intersected 129.65 g Ag eq/t over 300.75m (see press release dated July 28, 2021), returned 234.19 g Ag eq/t (70.58 g Ag/t, 2.31% Zn, 2.74% Pb and 0.042% Sn) over 53.20m from 139.35m to 192.55m including a higher grade portion of 931.73 g Ag eq/t (367.29 g Ag/t, 5.64% Zn, 13.67% Pb and 0.10% Sn) over 9.26m. Multiple additional significant mineralized intervals occur above and below this intercept. Mineralization occurs within the mineralized envelope east of SBBP in all host rock types.
- Hole DHK-19, drilled to the southeast at -45 degrees from the west end of the Huayra Kasa underground workings, intersected 108.24 g Ag eq/t (3.14g Ag/t, 0.24 g Au/t, 2.03% Zn and 0.58% Pb) over 48.2m from 46.95m to 95.15m in altered dacite in the mineralized envelope of the SBBP. This includes a higher-grade interval grading 180.76 g Ag eq/t (4.46 g Ag/t, 0.35 g Au/t, 3.57% Zn and 1.05% Pb) over 15.02m. Multiple additional significant mineralized intervals occur above and below this intercept.
- Hole DCN-04 was drilled at -80 degrees to the north from the northern radial platform of the CBP. This hole intersected seventeen (17) mineralized intersections, principally Sn-Ag-bearing, over its 851.4m length. Best results include 71.54 g Ag eq/t (32.58 g Ag/t and 0.10% Sn) over 97.10m from 134.40 to 231.5m; 101.52 g Ag eq/t (28.74 g Ag/t and 0.19% Sn) over 62.01m from 281.40m to 343.41m; 70.42 g Ag eq/t (28.74 g Ag/t and 0.16% Sn) over 22.59m from 417.05m to 439.64m; and 236.96 g Ag eq/t (92.21 g Ag/t and 0.25% Sn) over 17.45m from 659.55m to 677.00m.
- Hole DCS-02 was drilled southeast at -60 degrees from the south radial platform of the CBP. This hole, which was drilled to 800.5m, intersected nine (9) reportable Ag-Zn-Pb-Sn mineralized intervals. Best results include 79.53 g Ag eq/t (including 0.21% Sn) over 19.42m, 101.01 g Ag eq/t (32.76 g Ag/t, 0.76% Zn, 0.75% Pb) over 10.47 and 130.95g Ag eq/t (34.14 g Ag/t, 0.10 g Au/t, 1.35% Zn and 0.56 % Pb over 7.40m. Mineralization in the southern part of the CBP is notable for containing significant Zn and Pb as well as Ag and Sn, a metal assemblage more comparable to SBBP and Porco. The northern part of the CBP is dominantly Sn-Ag suggesting a deeper origin for this part of the breccia pipe.
Planned drilling for 2021 is 51,000m with the aim of outlining an initial inferred NI 43-101 mineralization by late fall. A ground magnetic survey was recently completed over the property and an induced polarization survey will commence shortly to further define drill targets. Preliminary metallurgical tests are also in progress. An updated NI 43-101 Technical Report is being prepared by independent consultant Micon International Ltd.
Eloro Resources is an exploration and mine development company with a portfolio of gold and base-metal properties in Bolivia, Peru and Quebec.
Eloro Resources Ltd. (ELO) opened trading at C$3.74 per share.