Tinka discovers new high grade Zinc Zone at Ayawilca
400 metre step-out hole hits 17.9 metres at 11.6 % Zn within a wider zone of 62.4 metres at 5.6 % Zn
VANCOUVER , March 6, 2017 /CNW/ - Tinka Resources Limited ("Tinka" or the "Company") (TSXV: TK) (OTCPK: TKRFF) is pleased to announce partial results from drill hole A17-56, the first hole of the 10,000 metre 2017 drill program at Ayawilca, Peru. Drill hole A17-56 is located approximately 400 metres south of the existing Zinc Zone Inferred Mineral Resource, and over 250 metres from any previous drill hole at Ayawilca. Mineralization in the hole is associated with massive to semi-massive sulphide replacements of carbonate and clastic sediments which also host the known mineralization elsewhere. These results report down to a depth of 238 metres only; hole A17-56 will continue to the base of the favourable limestone unit, with further high-grade zinc intersections expected. Tinka is mobilizing a second drill rig to site immediately.
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Key Highlights from drill hole A17-56 (results to 238 metres depth only):
62.4 metres grading 5.6 % zinc from 127.5 metres depth, including:
17.9 metres at 11.6% zinc from 127.5 metres depth, including: 5.8 metres at 22.5 % zinc from 127.5 metres depth; and17.9 metres at 11.6% zinc from 127.5 metres depth, including: 5.8 metres at 22.5 % zinc from 127.5 metres depth; and5.2 metres at 12.9% zinc from 228.5 metres depth; All mineralized intercepts are sulphides.
The lower contact of the favourable limestone is expected at a depth of 300-350 metres. Zinc mineralization is all sulphide (sphalerite, marmatite) accompanied by minor galena and chalcopyrite. True thicknesses of the zinc intersections are estimated to be at least 90% of the downhole thickness.
Dr. Graham Carman , Tinka´s President and CEO, stated: "This is an exciting new zinc discovery at Ayawilca, in a 400 metre step-out hole from the existing mineral resource and our very first drill hole for 2017. This early success gives the Tinka team a great deal of confidence that our geological models and targeting methods are working. We are drilling a magnetic anomaly at South Ayawilca, and there are several other untested magnetic and zinc anomalies on the property that will be drilled in 2017 (see Figures 1 & 2)."
Dr. Carman continued, "This discovery at South Ayawilca is very significant. The drill hole contains some high zinc grades, and opens up a large new area to potentially grow our zinc resources, particularly of the higher grade 'chimney style' mineralization we have already identified at West Ayawilca. We look forward to completing A17-56 to determine the extent of the mineralization to depth. Upcoming holes will test if this mineralization links up with existing mineral resources at West and/or Central Ayawilca. Given this early success, we are immediately mobilizing a second drill rig to site."
Table of Results
| Drill hole
| From (m)
| To (m)
| Interval (m)
| Zinc %
| Lead %
| Silver ppm
| Indium ppm
| A17-56
| 127.5
| 189.9
| 62.4
| 5.6
| 0.1
| 17
| 29
|
| Including
| 127.5
| 145.4
| 17.9
| 11.6
| 0.2
| 36
| 20
|
| Including
| 127.5
| 133.3
| 5.8
| 22.5
| 0.3
| 77
| 50
| And
| 228.5
| 233.7
| 5.2
| 12.9
| 0.0
| 11
| 162
|
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Notes on sampling and assaying:
Down-hole zinc intersections were calculated using a 2% zinc cut-off grade over 6 metre intervals. Drill holes are diamond core holes with recoveries generally above 70% and often close to 100%. The drill core is marked up, logged, and photographed on site. The cores are cut in half at the Company's core storage facility, with half-cores stored as a future reference. Half-core is bagged on average over 1 to 2 metre composite intervals, and sent to ALS laboratory in Lima for assay in batches. Standards and blanks were inserted into each batch prior to departure from Tinka's core storage facilities. At the laboratory samples are dried, crushed to 100% passing 2mm, then 500 grams pulverized for multi-element analysis by ICP (MS) using multi-acid digestion. Samples assaying over 1% zinc, lead, or copper were re-assayed using precise ore-grade AAS techniques. |
