Osino Resources Corp. (TSX-V:OSI) (FSE:RSR1) (OTCQX:OSIIF) is pleased to announce an update on infill and step-out drilling at its Twin Hills Gold Project in the Erongo Region of Namibia.
The Twin Hills maiden resource was released on April 12th, 2021 including 0.43Moz @ 1.00g/t in the Indicated category and 1.47Moz at 1.08g/t in the Inferred category at a cut-off grade of 0.5g/t. The infill and step-out drill programs are aimed at converting the bulk of the mineralization to the Indicated category and expanding the total resource.
Heye Daun, Osino’s CEO commented: “These are another set of excellent results from Clouds which are particularly significant as they are outside of the resource envelope and PEA pit design, and thus could have a significant impact on future resource growth. It is particularly pleasing that the Clouds high-grade shoot is getting bigger and better down plunge to the northeast, which should allow us to deepen the pit in this area. We have planned some immediate follow-up drilling to better define the Clouds shoot at depth and hopefully be able to include some of it in the next resource update, scheduled for April/May 2022. Our Namibian team can be really proud of themselves after an exceptional drill performance in 2021, having completed 123,000m of drilling and setting us up to fast-track the project through the various development and feasibility studies scheduled for this year.”
Drill Planning & Resource Update
The infill drill program started in March 2021 with the aim of converting the entire Bulge, THC and Clouds mineral resource from the Inferred to the Indicated category. The drill holes are positioned on a staggered 50 x 50m pattern, resulting in an effective maximum drill spacing of approximately 32m to 35m.
The drill program was expanded in November after the discovery of Twin Hills West and again in December to include the deeper portions of the plunging shoots at Bulge and Clouds East as well as the shallow, up-dip portions of Bulge, THC and Clouds. This additional drilling delayed the completion of the resource drilling, which is now scheduled to be completed by February 2022.
Mineralization and geological modelling is currently underway and final assay results should be received by the end of February 2022, which should allow for an updated mineral resource to be published in April/May 2022.
Figure 1: Twin Hills mineral resource drill collars with significant recent assay results
Figure 1 above provides a summary of the most significant assay results received for all holes expressed as GM (gram x meter) with annotated selected results received since the previous update.
Polygons for the preliminary mine layout have been included for scale and context, although the exact positions may change slightly once the condemnation drilling and other studies have been concluded.
Description of Latest Clouds Results
The mineralization at Clouds lies along a north easterly striking structure hosting the high-grade shoot that has produced consistently wide intercepts from surface. Recent drilling at Clouds has focused on chasing this mineralization down plunge to try and deepen the pit in this area.
The latest two results from the deep drilling at Clouds are OKD322 – 49m @ 1.50g/t incl. 43m @ 1.66g/t and OKD332 – 84m @ 1.08g/t incl. 14m @ 1.99g/t and 16m @ 1.37g/t. These two holes take the mineralization down to approximately 300m vertically below surface and open to depth.
Representative sections through this portion of the Clouds deposit are depicted in the figures below. The August 2021 PEA pit design is indicated in light brown. A subsequent conceptual Whittle pit optimization was carried out on an interim planning model by the Company and is referred to as the Pseudo Pit. The Pseudo Pit indicates the additional volume of mineral resources which are expected to be included in the next update of the Clouds mineral resource. It also demonstrates how the latest step-out drill results could have a significantly positive impact on the Clouds mineral resource.
Figure 2: Section through Clouds East showing extension of high grade shoot in OKD322 and previous pit shell
The mineralized syncline illustrated in blue in the section above is based on the previous resource update. Recent drilling results downdip clearly illustrate that the mineralized unit is much larger than previously thought and becomes more focused with depth.
The geological models and mineralization envelopes will all be revised for the next resource update to reflect the expanded envelope.
Figures 2 and 3 also clearly demonstrate how the grade and width of mineralization is improving with depth.
Figure 3: Section through Clouds showing extension and expansion of high-grade shoot in OKD332
Bulge Infill Drilling
The last planned infill holes were recently completed with the remaining drilling now focused on infilling the deep step-out drilling (announced in December 14, 2021) to allow for the upgrading of this mineralization from the Inferred to the Indicated resource category.
The deep drilling will extend the mineralized envelope to below 400m vertical from surface and is still open at depth. This last phase of drilling will be completed by the end of February 2022.
Drill Program for Q1
After the completion of the infill and step-out program, the drilling will be cut back for the rest of the quarter while we wait for assays and the focus will be on completing a range of smaller drill programs as follows:
A link to the complete intercept table is available here.
Notes on Drill Assay Reporting in the Intercept Table:
Quality Assurance / Quality Control
All Osino sample assay results have been independently monitored through a quality assurance / quality control program including the insertion of blind standards, blanks and duplicate samples. QA/QC samples make up 10% of all samples submitted. Logging and sampling is completed at Osino’s secure facility located in Omaruru, Namibia, near the Twin Hills Gold Project. Drill core is sawn in half on site and half drill-core samples are securely transported to the Activation Laboratories Ltd. sample prep facility in Windhoek, Namibia. The core is dried, crushed to 90% -10mesh, split to 350g and pulverized to 90% -140mesh. Sample pulps are sent to Activation Laboratories Ltd. in Ontario, Canada for analysis. Gold analysis is by 30g fire assay with AA finish and automatically re-analyzed with Gravimetric finish if Au >5g/t. In addition, pulps undergo 4-Acid digestion and multi-element analysis by ICP-AES or ICP-MS. RC drill samples are prepared at Activation Laboratories Ltd. sample prep facility in Windhoek, Namibia. The RC chips are dried, crushed to 90% -10mesh, split to 350g and pulverized to 90% -140mesh. Sample pulps are sent to Activation Laboratories Ltd. in Ontario, Canada for analysis. Gold analysis is by 30g fire assay with AA finish and automatically re-analyzed with Gravimetric finish if Au >5g/t.
Qualified Person’s Statement
David Underwood, BSc. (Hons) is Vice President Exploration of Osino Resources Corp. and has reviewed and approved the scientific and technical information in this news release and is a registered Professional Natural Scientist with the South African Council for Natural Scientific Professions (Pr. Sci. Nat. No.400323/11) and a Qualified Person for the purposes of National Instrument 43-101.
About Osino Resources
Osino is a Canadian gold exploration and development company focused on the development of our Twin Hills gold discovery in central Namibia. The Twin Hills Gold Project is at an advanced stage of exploration with various advanced development studies underway with the aim of fast-tracking the project.
Osino has a large ground position of approximately 6,700km2 located within Namibia’s prospective Damara sedimentary mineral belt, mostly in proximity to and along strike of the producing Navachab and Otjikoto Gold Mines. The Company is actively advancing a range of gold prospects and targets along the belt by utilizing a portfolio approach geared towards discovery, targeting gold mineralization that fits the broad orogenic gold model.
Our core projects are favorably located north and north-west of Namibia’s capital city Windhoek. By virtue of their location, the projects benefit significantly from Namibia’s well-established infrastructure with paved highways, railway, power and water in close proximity. Namibia is mining-friendly and lauded as one of the continent’s most politically and socially stable jurisdictions.
Osino continues to evaluate new ground with a view to expanding our Namibian portfolio.
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