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O3 Mining Intersects 9.6 g/t Au over 6.2 Metres at Norlartic Extension, Marban Alliance

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O3 Mining Intersects 9.6 g/t Au over 6.2 Metres at Norlartic Extension, Marban Alliance






O3 Mining Inc. (TSX-V: OIII) (OTCQX: OIIIF) is pleased to announce that it has received initial results from its 2,886 metre infill drilling campaign completed between November 2023 and January 2024 on the Norlartic Extension area within the Marban Alliance project, in Val-d’Or, Québec, Canada.



  • 9.6 g/t Au over 6.2 metres in hole O3MA-23-539 at a vertical depth of 36 metres, including 104 g/t over 0.5 metre on Norlartic Extension

  • 3.7 g/t Au over 5.9 metres in hole O3MA-23-539 at a vertical depth of 21 metres on Norlartic Extension

  • 1.2 g/t Au over 17.2 metres in hole O3MA-23-546 at a vertical depth of 106 metres on Norlartic Extension


O3 Mining’s President and Chief Executive Officer, Mr. José Vizquerra commented: “These new intercepts from our 2023 infill drilling program at Marban Alliance will provide additional data to advance our understanding of the existing resources at Marban Alliance. Located at the Norlartic Extension deposit, these results strengthen our confidence in expanding the Norlartic Extension satellite pits in our anticipated Feasibility Study. We will continue to report on results from our winter drilling campaign in the Marban Alliance project as assays are received.”


The 2023 drilling campaign on the Norlartic Extension focused on best intercepts of the 2022 drilling campaign (see news releases of O3 Mining dated (i) July 6, 2022 and entitled O3 Mining Intersects 2.3 g/t Au Over 14.8 Metres Outside Resource Pit Shells at Marban Engineering, and (ii) February 27, 2023 and entitled “O3 Mining Intersects 3.7 g/t Au over 11.0 Metres at Norlartic Extension, Marban Engineering). In the area adjacent to the main Marban pit, three satellite pits were defined in the Corporation’s pre-feasibility study using only historical drilling. A strike length of 200 metres hosting multiple Norlartic Extension dyke swarms was drilled down to 250 metres vertical at a spacing of 40 metres, corresponding to the drill spacing used elsewhere on the property. The results released today along with those from 2022 show two near-surface mineralized lenses of at least 200 metres long each. Complete assay results for nine of the 18 drill holes from this campaign have been received to date. Once all assays are received, the 2022 and 2023 results on Norlartic Extension will be integrated into an updated mineral resource estimate to be used in a future feasibility study on the Marban Alliance project.


The dyke swarm hosting the gold mineralization at Norlartic Extension is geologically identical to the one hosting the Norlartic and Kierens mineralization. They correspond to mafic and intermediate fine-grained dykes, which have been successfully traced along a two-kilometre trend and serve as a marker to the mineralized corridor.


Table 1: Near Surface Drill Hole Intercepts. Only intercepts with metal factor above 5.0 (g/t Au x metres) are reported, cut-off 0.3 g/t Au and above 200 metres from surface. See Table 2 below for full technical parameters.


Hole From To Grade Core Length Vertical


(m) (m) (g/t Au) (m) (m)
O3MA-23-532 26 34 0.9 8 25 Norlartic Extension
91.6 102.8 0.9 11.2 83
O3MA-23-535 101.7 105 1.5 3.3 81
O3MA-23-537 48.7 50.1 5.3 1.4 36
59.7 63 2.1 3.3 46
O3MA-23-539 25.1 31 3.7 5.9 21
43.7 49.9 9.6 6.2 36
Including (VG*) 47.8 48.3 104 0.5 36
O3MA-23-546 111.2 128.4 1.2 17.2 106
O3MA-23-548 133.9 137.3 2.1 3.4 117
154 161.9 0.9 7.9 136


True width determination is currently unknown but is estimated at 65-80% of the reported core length interval for the zones. Assays are uncut except where indicated.
*Interval where gold was visually observed


Figure 1: Photos of visible gold at 48.0 metres in hole O3MA-23-539



Figure 2: Marban Alliance Project Map



Figure 3: Location of significant intercepts at Norlartic Extension



Table 2: Technical parameters of holes of the 2023-2024 campaign at Norlartic Extension


Hole Azimuth




Start Depth
End Depth


UTM Zone 18
UTM Zone 18
Assays Status
O3MA-23-532 207 -56 0 213 213 278089 5336567 All Received
O3MA-23-533 198 -47 0 189 189 278028 5336548 All Received
O3MA-23-534 198 -73 0 117 117 277950 5336510 All Received
O3MA-23-535 213 -53 0 147 147 277984 5336475 All Received
O3MA-23-536 207 -57 0 132 132 278069 5336453 All Received
O3MA-23-537 208 -52 0 117 117 278013 5336435 All Received
O3MA-23-538 207 -56 0 132 132 278038 5336494 All Received
O3MA-23-539 204 -50 0 120 120 278105 5336435 All Received
O3MA-23-540 198 -46 0 120 120 278120 5336409 All Received
O3MA-23-541 207 -47 0 126 126 278159 5336391 Partial
O3MA-23-542 203 -52 0 156 156 278177 5336428 All Pending
O3MA-23-543 206 -58 0 198 198 278205 5336453 All Pending
O3MA-23-544 210 -55 0 171 171 278069 5336531 All Pending
O3MA-23-545 207 -57 0 192 192 278098 5336507 Partial
O3MA-23-546 207 -62 0 204 204 278113 5336530 Partial
O3MA-23-547 213 -46 0 222 222 278161 5336528 Partial
O3MA-23-548 206 -60 0 222 222 278161 5336528 Partial
O3MA-24-582 216 -55 0 109 109 278209 5336384 All Pending



2024 Infill Drilling Campaign Update


The 2024 infill drilling campaign at Marban Alliance mainly focuses on the Malartic H deposit to convert inferred in-pit resources into the indicated category. The ongoing Malartic H program consists of approximately 28,000 metres of drilling, and approximately 10,000 metres of core are currently awaiting assay results.


Qualified Person


The scientific and technical content of this news release has been prepared, reviewed, and approved by Mr. Sébastien Vigneau, P.Geo. (OGQ #993), Principal Geologist of O3 Mining, who is a “qualified person” within the meaning of National Instrument 43-101 – Standards of Disclosure for Mineral Projects.


Quality Assurance/Quality Control


O3 Mining reviewed all available QA/QC reports, downhole deviations and dips, collar location, original logs and available laboratory certificates. O3 Mining individualy inspected and validated all of mineralized intervals in drill holes core.


About O3 Mining Inc.


O3 Mining Inc. is a gold explorer and mine developer on the road to produce from its highly prospective gold camps in Québec, Canada. O3 Mining benefits from the support and expertise of a team of industry leaders as it grows towards becoming a gold producer with several multi-million-ounce deposits in Québec.


O3 Mining is well-capitalized and owns a 100% interest in all its properties (75,000 hectares) in Québec. O3 Mining trades on the TSX Venture Exchange (TSXV: OIII) and OTC Markets (OTCQX: OIIIF). The Corporation is focused on delivering superior returns to its shareholders and long-term benefits to its stakeholders.



Figure 1: Photos of visible gold at 48.0 metres in hole O3MA-23-539 (CNW Group/O3 Mining Inc.)

Figure 2: Marban Alliance Project Map (CNW Group/O3 Mining Inc.)

Figure 3: Location of significant intercepts at Norlartic Extension (CNW Group/O3 Mining Inc.)


Posted February 22, 2024

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