Tinka Reports Final Drill Hole Results from 11,000 metre Drill Program and Provides Exploration Update
- Drill results from the Silver Zone at South Ayawilca were highly encouraging, with a high-grade silver intercept in a 150-meter step-out hole.
- Zinc Zone drill results showed high-grade mineralization, with hole A23-223 intersecting 21.6 meters at 6.6% zinc and 18 g/t silver.
- The company is focused on completing a Mineral Resource update for the Ayawilca deposit and expects to release the updated estimation in September 2023.
- None.
VANCOUVER, BC / ACCESSWIRE / August 17, 2023 / Tinka Resources Limited ("Tinka" or the "Company") (TSXV:TK)(BVL:TK)(OTCQB:TKRFF) is pleased to announce results for the final three drill holes of the 11,000-metre 2022-2023 drill program at South Ayawilca and to provide an update on the Company's ongoing exploration activities. The recent drill campaign at Ayawilca was completed at the end of May 2023. The Company is now focused on completing a Mineral Resource update for the Ayawilca deposit and revising future mining scenarios via a desktop trade-off study. Exploration is also continuing at the Company's nearby Silvia copper-gold project.
Drill results from the "Silver Zone" at South Ayawilca were highly encouraging with a high-grade silver intercept in a 150-metre step-out in hole A22-195. The other two new holes reported here, A23-221 and A23-223, intersected high-grade "Zinc Zone" mineralization in resource confirmation holes. All drill hole results have now been incorporated into a revised geological model for the Ayawilca deposit, and an independent consultant is currently updating the Mineral Resource estimation for the Zinc and Tin Zones.
Key Highlights:
Zinc Zone
- Hole A23-223: 21.6 metres at
6.6% zinc and 18 g/t silver from 254.0 metres depth, including- 7.6 metres at
10.7% zinc and 18 g/t silver from 268.0 metres depth.
- 7.6 metres at
- Hole A23-221: 13.8 metres at
6.8% zinc from 290.2 metres depth.
Silver Zone
- Hole A22-195: 3.4 metres at 465 g/t silver from 209.7 metres in a 150-metre step-out hole.
- The Silver Zone is interpreted as a subvertical, northeast-trending structure with high-grade silver over a strike length of at least 500 metres on the northern edge of the zinc-rich massive sulphide bodies at South Ayawilca.
- Previous downhole intercepts of the Silver Zone include 7.1 metres at 604 g/t silver and 11.5 metres at 781 g/t silver.
- The Silver Zone mineralization remains open in all directions including up- and down-plunge.
True thicknesses of the above drill intercepts are estimated to be approximately
Dr. Graham Carman, Tinka's President and CEO, stated: "We are pleased to report results from the final holes of the 11,000-metre drill program at Ayawilca. These latest drill holes targeted both Zinc Zone massive sulphide mineralization and extensions of the structurally controlled epithermal Silver Zone mineralization on the edge of the massive zinc sulphides at South Ayawilca. All drill intersections have now been incorporated into a new geological model which will form the basis of an updated Mineral Resource estimation which we expect to be released in September 2023."
"Exploration is continuing at the Silvia NW copper-gold target 30 km from Ayawilca. A 121 line-kilometre drone magnetic survey has just been completed, covering outcrops of Cu-Au skarn mineralization which are exposed in several locations over a 3km strike length. Sampling by Tinka has identified high-grade copper-gold skarn in trench samples grading up to
Zinc Zone Drill Results 2022-23
The Company completed 33 diamond drill holes for 11,115 metres in the 2022-23 drill campaign. These were both infill and step-out holes and were focused at West and South Ayawilca which are known areas of high-grade zinc mineralization. Figure 1 shows a drill map with 2022-23 drill holes highlighted. Some of the best Zinc Zone intersections ever made at Ayawilca were reported during this campaign, including:
South Ayawilca:
- Hole A22-202: 38.9 metres at
20.0% Zn,0.1% Pb and 31 g/t Ag from 170.5 metres - news release Jan 9 ‘23. - Hole A22-199: 42.4 metres at
9.4% Zn,0.1% Pb and 19 g/t Ag from 246.5 metres - news release Jan 9 ‘23. - Hole A22-212: 145.2 metres at
10.9% Zn,0.2% Pb and 31 g/t Ag from 158.2 metres - news release Mar 6 ‘23. - Hole A22-208: 71.2 metres at
8.8% Zn,0.5% Pb and 33 g/t Ag from 168.8 metres - news release Mar 6 '23. - Hole A22-206: 37.8 metres at
10.5% Zn,0.1% Pb and 17 g/t Ag from 153.6 metres - news release Mar 6 ‘23.
West Ayawilca:
- Hole A22-200: 44.9 metres at
12.0% Zn,0.1% Pb and 16 g/t Ag from 283.6 metres - news release Nov 21 '22. - Hole A22-207: 132.5 metres at
6.8% Zn,0.3% Pb and 21 g/t Ag from 193.9 metres - news release Jan 24 '23. - Hole A22-205: 134.0 metres at
4.8% Zn,0.1% Pb and 10 g/t Ag from 180.0 metres - news release Jan 24 ‘23. - Hole A22-203: 49.8 metres at
8.3% Zn,0.1% Pb and 16 g/t Ag from 186.88 metres - news release Jan 24 ‘23. - Hole A23-216: 97.9 metres at
8.8% Zn,0.1% Pb and 16 g/t Ag from 197.9 metres - news release June 8 '23.
The full suite of drill results from the 2022-23 program have now been incorporated into an updated 3D geological model and a Mineral Resource update is in progress. The updated Mineral Resource estimation is expected to be available in September 2023.
Significant improvements to the geological interpretation based on the 2022-23 drill program include the following:
- Zinc Zone mineralization at West Ayawilca is more vertically controlled than was previously interpreted - two zinc sulphide ‘pipes' each with diameters of between 100 and 150 metres extend through entire limestone sequence (up to 200 metres vertically).
- High-grade, continuous massive zinc sulphide mineralization at South Ayawilca is concentrated within a tightly folded anticline ‘hinge' - this very high-grade zone has the potential to be a ‘starter mine' to provide quick payback of initial capital.
- An initial hydrological study has also been conducted to better understand the underground water conditions at Ayawilca. Hydrological information has been obtained from 11 down-hole piezometers which were installed on a wide drill spacing to get adequate coverage across the project. The hydrological study, which is close to final completion, will be important for mine plan studies in the future.
Silver Zone Drill Results
The Silver Zone is hosted by a steep-dipping structure ("060 Fault") located on the northern edge of the Zinc Zone massive sulphides at South Ayawilca. Previously, the Silver Zone had been identified along a 250 metres strike length. However, resampling of an earlier hole in the drill campaign, A22-195, has led to an updated interpretation that the Silver Zone extends for at least 500 metres along the northeast-trending structure and remains open. A map showing drill holes of the Silver Zone is shown in Figure 2. A longitudinal section of the Silver Zone is presented in Figure 3.
Hole A23-223, a follow-up to the high-grade silver mineralization in A17-072, intersected low-grade silver mineralization only and is interpreted to have intersected the Silver Zone structure at a depth which is too deep to be well mineralized. The hole did, however, intersect strong Zinc Zone mineralization higher up in the hole.
To date, eight drill holes have intersected the Silver Zone structure across a strike length of ~500 metres. The mineralization is interpreted to plunge at a shallow angle to the southwest (see Figure 2). Highlights of the Silver Zone downhole intersections include:
- Hole A23-220: 29.5 m at 182 g/t Ag from 289.7 m including 7.1 m at 604 g/t Ag - news release May 2 '23.
- Hole A17-095: 8.7 m at 135 g/t Ag from 307.3 m - news release May 2 '23.
- Hole 17-072: 11.5 m at 781 g/t Ag from 294.5 m including 2.0 m at 3167 g/t Ag - news release July 17 ‘17.
- Hole A19-167: 29.6 m at 152 g/t Ag from 412.7 m including 7.3 m at 366 g/t Ag - news release Oct 8, ‘19.
- Hole A22-195: 3.4 m at 465 g/t silver from 209.7 m (this release).
Silvia Project Exploration
A drone magnetic survey was successfully completed at the Silvia NW copper-gold target, 30 km west of Ayawilca - see location map in Figure 4. In total 121 line-kilometres of drone magnetic data was acquired covering an area of approximately 13 km2. The geophysical data is currently being processed and interpreted.
At the Silvia NW target, high-grade copper-gold mineralization occurs in outcrops of ‘green garnet skarn' associated with chalcopyrite, secondary copper minerals (with very low arsenic) and microscopic native gold, adjacent to altered felsic intrusions. "Area A" sampled up to
Table 1. Summary of new drill hole results in this release
| Hole | From (m) | To (m) | Interval (m) | Zn % | Pb % | Ag g/t | In ppm | Sn % | Comment |
| A22-195 | 209.65 | 213.00 | 3.35 | 0.28 | 0.24 | 465 | 0 | Silver Zone | |
| A23-221 | 143.25 | 144.25 | 1.00 | 13.58 | 0.17 | 29 | 66 | Zinc Zone (Reported May 2, 2023) | |
| and | 234.00 | 254.00 | 20.00 | 1.35 | Tin Zone | ||||
| and | 290.20 | 304.00 | 13.80 | 6.77 | 0.03 | 11 | 119 | Zinc Zone (Reported May 2, 2023) | |
| A23-223 | 194.00 | 195.20 | 1.20 | 8.80 | 5.16 | 240 | |||
| and | 254.00 | 275.60 | 21.60 | 6.63 | 0.04 | 18 | 332 | Zinc Zone | |
incl | 268.00 | 275.60 | 7.60 | 10.66 | 0.07 | 18 | 201 | ||
| and | 278.35 | 280.30 | 24.20 | 1.14 | 0.42 | 10 | Silver Zone | ||
incl | 283.30 | 287.90 | 5.95 | 2.05 | 0.85 | 17 |
Note on sampling and assaying
Drill holes are diamond HQ size core holes with recoveries generally above
Figure 1. Drill hole map of 2022-2023 holes at Ayawilca highlighting the large zinc sulphide bodies
Figure 2. Map of selected Silver Zone drill holes - new drill hole intersections are highlighted in red
Figure 3. Longitudinal section of the Silver Zone (Viewing NW) with downhole drill intersections
Figure 4. Regional map of Ayawilca and Silvia projects with selected mines and mining claims in Central Peru
Table 2. Drill hole details for 2022-2023 drill program including drill collar coordinate information
| Drill hole | Easting | Northing | Elevation | Azimuth | Dip | Depth m | Area | Comment |
| A22-190 | 333281 | 8845755 | 4167 | 180 | -50 | 498.95 | Central | Results reported |
| A22-191 | 333169 | 8845799 | 4182 | 180 | -55 | 478.80 | Central | Results reported |
| A22-192 | 333345 | 8845195 | 4208 | 232 | -74 | 385.90 | South | Results reported |
| A22-193 | 332766 | 8845659 | 4237 | 68 | -65 | 365.40 | West | Results reported |
| A22-194 | 333143 | 8845231 | 4226 | 135 | -73 | 380.20 | South | Results reported |
| A22-195 | 333149 | 8845353 | 4221 | 148 | -65 | 426.90 | South | Results here |
| A22-196 | 333035 | 8845307 | 4235 | 174 | -45 | 382.10 | South | Results reported |
| A22-197 | 332912 | 8845693 | 4220 | 264 | -55 | 412.60 | West | Results reported |
| A22-198 | 332900 | 8845768 | 4222 | 265 | -53 | 451.10 | West | Results reported |
| A22-199 | 333046 | 8845067 | 4195 | 303 | -66 | 344.10 | South | Results reported |
| A22-200 | 332821 | 8845889 | 4246 | 260 | -58 | 352.00 | West | Results reported |
| A22-201 | 333342 | 8845195 | 4208 | 310 | -73 | 58.90 | South (deepen-ing of A17-066) | Results reported |
| A22-202 | 333046 | 8845066 | 4197 | 283 | -52 | 270.15 | South | Results reported |
| A22-203 | 332839 | 8845685 | 4228 | 264 | -60 | 350.00 | West | Results reported |
| A22-204 | 333090 | 8845061 | 4196 | 307 | -60 | 334.30 | South | Results reported |
| A22-205 | 332839 | 8845685 | 4227 | 244 | -72 | 352.70 | West | Results reported |
| A22-206 | 333044 | 8845064 | 4197 | 270 | -58 | 217.30 | South | Results reported |
| A22-207 | 332710 | 8845883 | 4252 | 254 | -74 | 332.00 | West | Results reported |
| A22-208 | 333044 | 8845064 | 4197 | 270 | -70 | 282.55 | South | Results reported |
| A22-209 | 332738 | 8845927 | 4251 | 257 | -68 | 314.15 | West | Results reported |
| A22-210 | 333047 | 8845065 | 4197 | 297 | -48 | 259.80 | South | Results reported |
| A22-211 | 332785 | 8845707 | 4236 | 260 | -75 | 295.00 | West | Results reported |
| A23-212 | 333047 | 8845065 | 4197 | 228 | -79 | 324.30 | South | Results reported |
| A23-213 | 332853 | 8845650 | 4225 | 258 | -65 | 316.00 | West | Results reported |
| A23-214 | 332710 | 8845883 | 4252 | 255 | -67 | 287.10 | West | Results reported |
| A23-215 | 333047 | 8845065 | 4197 | 180 | -80 | 295.10 | South | Results reported |
| A23-216 | 332710 | 8845883 | 4252 | 220 | -73 | 310.00 | West | Results reported |
| A23-217 | 332853 | 8845650 | 4225 | 240 | -78 | 300.00 | West | Results reported |
| A23-218 | 333109 | 8845020 | 4190 | 330 | -75 | 323.70 | South | Results reported |
| A23-219 | 333219 | 8845582 | 4182 | 180 | -85 | 336.80 | Central | Results reported |
| A23-220 | 333047 | 8845065 | 4197 | 308 | -62 | 328.10 | South | Results reported |
| A23-221 | 333118 | 8845102 | 4207 | 332 | -69 | 400.60 | South | Results here |
| A23-223 | 333118 | 8845102 | 4207 | 335 | -62 | 348.40 | South | Results here |
| TOTAL | 11,115.00 |
Notes: Datum for coordinates is WGS84 Zone 18S. Azimuth is true azimuth
The Qualified Person, Dr. Graham Carman, Tinka's President and CEO, and a Fellow of the Australasian Institute of Mining and Metallurgy, has reviewed and verified the technical contents of this release.
Readers are encouraged to read the NI 43-101 Technical Report entitled "Ayawilca Polymetallic Project, Central Peru, NI 43-101 Technical Report on Updated Preliminary Economic Assessment" available for download on Tinka's website at www.tinkaresources.com. The Technical Report was prepared by Mining Plus Peru S.A.C. ("Mining Plus") as principal consultant, Transmin Metallurgical Consultants ("Transmin"), Envis E.I.R.L ("Envis"), and SLR Consulting (Canada) Ltd ("SLR").
On behalf of the Board, "Graham Carman" | Further Information: Mariana Bermudez 1.604.685.9316 Stay up to date by subscribing for news alerts at Contact Tinka and by following Tinka on Twitter, LinkedIn and Facebook. |
About Tinka Resources Limited
Tinka is an exploration and development company with its flagship property being the
Forward Looking Statements: Certain information in this news release contains forward-looking statements and forward-looking information within the meaning of applicable securities laws (collectively "forward-looking statements"). All statements, other than statements of historical fact are forward-looking statements. Forward-looking statements are based on the beliefs and expectations of Tinka as well as assumptions made by and information currently available to Tinka's management. Such statements reflect the current risks, uncertainties and assumptions related to certain factors including, without limitations: timing of planned work programs and results varying from expectations; delay in obtaining results; changes in equity markets; uncertainties relating to the availability and costs of financing needed in the future; equipment failure, unexpected geological conditions; imprecision in resource estimates or metal recoveries; success of future development initiatives; competition and operating performance; environmental and safety risks; the Company's expectations regarding the Ayawilca Project PEA; the political environment in which the Company operates continuing to support the development and operation of mining projects; risks related to negative publicity with respect to the Company or the mining industry in general; the threat associated with outbreaks of viruses and infectious diseases, including the novel COVID-19 virus; delays in obtaining or failure to obtain necessary permits and approvals from local authorities; community agreements and relations; and, other development and operating risks. Should any one or more of these risks or uncertainties materialize, or should any underlying assumptions prove incorrect, actual results may vary materially from those described herein. Although Tinka believes that assumptions inherent in the forward-looking statements are reasonable, forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein. Except as may be required by applicable securities laws, Tinka disclaims any intent or obligation to update any forward-looking statement.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release
SOURCE: Tinka Resources Ltd.
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FAQ
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