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TinOne Continues to Report Outstanding Results from its Great Pyramid Project, Tasmania, Australia
TinOne Resources Inc. (TSX-V: TORC) (OTCQB: TORCF) is pleased to provide further results from its Great Pyramid Tin Project located in the tier one mining jurisdiction of Tasmania, Australia. The ongoing program has continued to define significant tin mineralisation.
Highlights:
- All holes returned tin-bearing intersections and provide strong support for historical drill data
- Mineralised zones shown to extend beneath and peripheral to historical resource
- Outstanding high-grade intersections include:
- 22GPRC022 returned 0.45% Sn over 15 metres
- 22GPRC021 returned 0.37% Sn over 11 metres
- 22GPDD001A returned
- 0.23% Sn over 23 metres, and
- 0.22% Sn over 26 metres, and
- 0.45% Sn over 11 metres
“We continue to be extremely encouraged by the results we are returning from Great Pyramid with high grade results being returned from near surface and at depths more than 200 metres below surface,” commented Chris Donaldson, Executive Chairman.
Results have been received for 2,827 metres of the Company’s ongoing 5,500 metre drilling program at Great Pyramid. These results represent complete results for 19 Reverse Circulation drill holes, results from two diamond cored holes and results from one diamond tail and part results from one other diamond tail. Assays are being fast tracked and average laboratory turnaround to-date has been 21 days.
Drilling commenced at the Project on April 27, 2022, with one diamond rig currently operating on site. The initial program consists of approximately 5,500 metres and has several objectives:
- Test the depth and lateral extensions of the mineralised zone
- Test a large-scale IP chargeability anomaly adjacent to the known mineralised zone and
- Obtain grade and continuity data utilising modern drill and analytical techniques.
In addition to the RC and diamond drill results reported here, an additional 662 metres of diamond drilling has been completed within, lateral to, and beneath the historical resource area, with assays pending.
Results reported here are from below, peripheral to and within the historical resource1 area (Table 1). Drill holes below and peripheral to the historic resource model have returned intersections consistent with or higher grade than the historical model. Ongoing deeper diamond drilling (assays reported here and pending) has confirmed the presence of mineralisation to considerable depth below the historical resource model and are consistent with historical drill data2 which returned mineralised intervals to the limit of drilling, up to 300 metres below surface.
| Table 1: Great Pyramid RC and DD drill results. More significant results are shown in bold. | ||||
| Hole | Intersection Width (m) |
From (m) |
Sn% | Comments |
| 22GPRC021 | 11 | 128 | 0.37 | Outside historical resource model. To end of hole. |
| 22GPRC022 | 15 | 22 | 0.45 | Inside historic resource model, to end of hole, abandoned due to collapse from old working. |
| 22GPRC024 | 21 | 16 | 0.22 | Inside historic resource model. |
| 14 | 47 | 0.10 | Inside historic resource model. | |
| 22GPRC006 | 29 | 160 | 0.15 | Diamond tail. Outside historical resource model. |
| 6 | 238 | 0.27 | Diamond tail. Outside historical resource model. | |
| 13.5 | 250 | 0.14 | Diamond tail. Outside historical resource model. To end of hole. |
|
| 22GPDD001A | 23 | 0 | 0.23 | Diamond cored hole. Inside historical resource model. |
| 26 | 29 | 0.22 | Diamond cored hole. Inside historical resource model. | |
| 11 | 61 | 0.45 | Diamond cored hole. Inside historical resource model. | |
| 8 | 120 | 0.28 | Diamond cored hole. Inside historical resource model | |
| 5 | 148 | 0.38 | Diamond cored hole. Outside historical resource model. | |
| 22GPDD008 | 8 | 4 | 0.20 | Inside historic resource model. |
| 14 | 24 | 0.20 | Inside historic resource model. | |
| 13 | 134 | 0.15 | Outside historical resource model. | |
| 4 | 171 | 0.25 | Outside historical resource model. | |
| NOTES: All intersections are calculated with a cut-off grade of 0.1% Sn with maximum consecutive internal waste of 4 metres. |
| All intersections are downhole widths, true widths are uncertain. |
| TinOne drill hole numbering is in the form 22GPRCXXX for RC holes and 22GPRDDXXX for diamond holes with numbering allocated in sequence. |
| Analytical results have been received for RC holes 22GPRC002, 003, 004, 005, 006, 007, 009, 011, 012, 013, 014 ,016, 017, 018A, 019, 021, 022, and 024. Hole 22GPRC020 failed at 12 metres and was not assayed. The target area for this hole was drilled by 22GPRC021. Assays have been received for diamond hole 22GPDD001A (redrill of 22GPDD001 which was abandoned at 42.1m), 22GPDD008 and diamond tails on 22GPRC006 and 22GPRC003 (part). |
| Diamond holes completed and with assays pending are 22GPDD10, 22GPDD015 and 22GPDD023. Diamond tail extensions completed for RC pre-collar hole and with assays pending are 22GPRC004, 22GPRC014 and 22GPRC005. |
About the Great Pyramid Tin Project
Geological Setting
The Great Pyramid deposit is located around a topographical feature known as Pyramid Hill and is hosted by Silurian to Devonian Mathinna Supergroup sandstones. The mineralization is formed by closely spaced sheeted northeast trending, cassiterite (SnO₂) bearing veins associated with silicification and sericite-pyrite alteration. The deposit style and regional comparisons suggests that a tin-fertile granite exists at depth below the deposit, however this has not been encountered in drilling and the deposit is open at depth. Geological interpretation indicates that certain sedimentary units within the folded Mathinna Supergroup sediments are more favourable hosts and diamond drilling being undertaken by the Company during the current campaign, combined with numerical modelling, will assist in developing a deeper understanding of controls on grade for follow up drilling.
The deposit is currently known over a strike length of more than 500 metres with an average width of approximately 150 metres. The depth extent of the deposit is unknown with only nine historical drill holes greater than 150 metres deep. These rare deeper holes encountered encouraging tin mineralization to depths of approximately 300 metres below surface2.
Historic Resources and Drill Data1
A historical mineral resource estimate was completed on the Great Pyramid Project for TNT Mines Ltd.1,2,3,4,5 (Table 2).
Table 2: Historical Estimate on the Great Pyramid Project1,2,3,4,5
| Great Pyramid Inferred Mineral Resource – JORC 2012 | |||
| Sn% CUT OFF | TONNES (Mt)
|
GRADE (Sn%)
|
CONTAINED TIN (kt)
|
| 0.1 | 5.2 | 0.2 | 10.4 |
| NOTES | |||
| 1. | Source: “Inferred Mineral Resource for the Great Pyramid Tin Deposit in Tasmania, Abbott, 2014” prepared by Jonathon Abbott of MPR Niuminco Group Ltd. The effective date for the Historical Estimate is 26 February, 2014. | ||
| 2. | The Historical Estimate was prepared using the 2012 Australasian Joint Ore Reserves Committee Code (JORC). The Historical Estimate was not completed using CIM Definition Standards on Mineral Resources and Reserves and is not supported by a technical report completed in accordance with National Instrument 43-101. | ||
| 3. | The estimation of the Historical Estimate utilized close spaced historic percussion (~85%) and lesser diamond drill holes with drill spacing in the estimation area typically 15 x 30m and locally closer. The Inferred Resource was estimated using Multiple Indicator Kriging method of 1.5 metre down-hole composites within a mineralized domain interpreted from tin grade. Continuity of tin grades was characterised by indicator variograms at 14 indicator thresholds. The estimates are extrapolated a maximum of approximately 30 m from drilling Gemcom software was used for data compilation, domain wireframing, and coding of composite values, and GS3M was used for resource estimation. Resources were estimated into 15 by 30 by 3 m blocks (across strike, strike, vertical) aligned with the 067o trending drilling grid. Planview dimensions of the blocks approximate average drill hole spacing. For precise volume representation, resource estimates include the proportion of block volumes within the mineralised domain below surface. The modelling included a three pass octant based search strategy. Search ellipsoid radii (across strike, along strike, vertical) and minimum data requirements for these searches were: Search 1: 20 by 20 by 4 m (16 data), Search 2: 30 by 30 by 6 m (16 data), Search 3:30 by 30 by 6 (8 data). Model validation included visual comparison of model estimates and composite grades, and trend (swath) plots, along with comparison with estimates from alternative estimation methodologies and previous model estimates. The Historical Estimate is restricted to the area of close spaced drilling and 90% of the resource occurs within 40 metres of surface. Although the limited deeper drilling has encountered mineralized material this was not included in the Historical Estimate. The mineralised domain wireframe used to constrain the estimates was primarily interpreted on the basis of tin assay grades and restricts estimates to the volume tested by reasonably close spaced drilling. The wireframe was trimmed by the cross cutting dyke and soil units interpreted from drill hole logging and geological mapping. Investigation of alternative interpretations included resource estimation with assumed dominant mineralisation controls varying from flat lying to steeply west dipping. These models did not give significantly different total estimates | ||
| 4. | The reader is cautioned that the Historical Estimate is considered historical in nature and as such is based on prior data and reports prepared by previous property owners. The reader is cautioned not to treat them, or any part of them, as current mineral resources or reserves. A qualified person has not done sufficient work to classify the Historical Estimates as current resources and TinOne is not treating the Historical Estimates as current resources. Significant data compilation, re-drilling, re-sampling and data verification may be required by a qualified person before the Historical Estimates can be classified as a current resource. There can be no assurance that any of the historical mineral resources, in whole or in part, will ever become economically viable. In addition, mineral resources are not mineral reserves and do not have demonstrated economic viability. Even if classified as a current resource, there is no certainty as to whether further exploration will result in any inferred mineral resources being upgraded to an indicated or measured mineral resource category. | ||
| 5. | The Company has determined that the Historical Estimate is reliable, and relevant to be included here because it was estimated using close spaced drilling with modern geostatistical methods and software by an experienced resource geologist and provides a guide to the location of the Great Pyramid mineralised zone. This will be used to assist in targeting drilling to undertake testing of the extent and grade of the mineralised system. | ||
Quality Assurance / Quality Control
Drill core and RC samples were shipped to ALS Limited in Brisbane, Australia for sample preparation and for analysis. The ALS, Brisbane facilities are ISO 9001 and ISO/IEC 17025 certified. Tin and tungsten are analysed by ICP-MS following lithium borate fusion (ALS method ME-MS85), overlimit results are reanalysed by XRF (ALS method XRF15b). Forty-eight element multi-element analyses are conducted by ICP-MS with a four-acid digestion (ALS method ME-MS61).
Control samples comprising certified reference samples, duplicates and blank samples were systematically inserted into the sample stream and analyzed as part of the Company’s quality assurance / quality control protocol.
About TinOne
TinOne is a TSX Venture Exchange listed Canadian public company with a high-quality portfolio of tin projects in the Tier 1 mining jurisdictions of Tasmania and New South Wales, Australia. The Company is focussed on advancing its highly prospective portfolio while also evaluating additional tin opportunities. TinOne is supported by Inventa Capital Corp.
Qualified Person
The Company’s disclosure of technical or scientific information in this press release has been reviewed and approved by Dr. Stuart Smith., Technical Advisor for TinOne. Dr. Smith is a Qualified Person as defined under the terms of National Instrument 43-101.
Location of the Company’s projects in the mining friendly jurisdiction of Tasmania (CNW Group/TinOne Resources Corp.)
Great Pyramid drilling plan. Holes reported in this release are labelled. Historic drill collars and traces (for angled holes) are also shown. (CNW Group/TinOne Resources Corp.)
Great Pyramid diamond core (22GPRC014 197.5-200.10m), beneath historic resource area, assay results pending. Intense sheeted quartz-carbonate ± sulphide veining in strongly silicified, medium to coarse grained sandstones. Historical exploration indicates that veins of this style are cassiterite-bearing and are typical of the mineralised zones. (CNW Group/TinOne Resources Corp.)
Great Pyramid diamond core (22GPRC006 205.2 – 205.35m), beneath historic resource area. Closely sheeted quartz-carbonate-cassiterite veining in strongly silicified sandstone. One metre interval from 205.0 -206.0 assayed at 0.54% tin. (CNW Group/TinOne Resources Corp.)
Posted October 11, 2022
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