03 Mining Intersects 5.1 g/t Au Over 5.1 m at Marban

   O3 Mining Inc. (TSX.V: OIII)

03 Mining provided new drilling results from the Marban project on its Malartic Property in the Val-d’Or region of Québec, Canada as part of its 250,000 metre drilling program.

The highlight was 5.1 g/t Au over 5.1 metres including 13.1 g/t Au Over 0.5 metres and 15.2 g/t Au over 0.7 metres in hole O3MA-21-033-W1 at the North Shear zone.


03 Mining TSX.V: OIII
Stage Exploration
Metal Gold
Market Cap C$168 m   @ $2.48
Location Quebec + Ontario

O3 Mining Intersects 5.1 g/t Au Over 5.1 metres near Marban’s Norlartic Pit


MARCH 9, 2021

Toronto, March 09, 2021 – O3 Mining Inc. (TSX.V: OIII; OTCQX: OIIIF)(“O3 Mining” or the “Corporation”) is pleased to provide new drilling results from the Marban project on its Malartic Property in the Val-d’Or region of Québec, Canada as part of its 250,000 metre drilling program.

Drilling at Marban focuses on expanding mineralization outside of the proposed pit areas outlined in the Preliminary Economic Assessment (“Marban PEA”)  HERE.

The 2021-2022 drilling program consists of 125,000 metres to test extensions of the deposits and zones outside the PEA pit areas. New drilling results from two drill holes include:


Drilling Highlights:

  • 5.1 g/t Au over 5.1 metres including 13.1 g/t Au Over 0.5 metres and 15.2 g/t Au over 0.7 metres in hole O3MA-21-033-W1 at the North Shear zone
  • 2.7 g/t Au over 10.6 metres including 26.9 g/t Au Over 0.5 metres in hole O3MA-21-033 near surface in new Triple North zone


03 Mining Management Comments

“The discovery of the new Triple North zone outside of the Norlartic pit shell continues to build our confidence in the potential to expand the mineable resources at Marban.

“With 125,000 metres of drilling planned for the Marban project, our drill program continues to grow, as does the potential for new discovery,”

President and CEO José Vizquerra.



The intercepts released today in holes O3MA-21-033,O3MA-21-033-W1 and O3MA-21-039 are part of six drill holes completed earlier this year to test extensions at depth of the North North and North Shear zones, which are both proposed for open pit mining in the 2020 Marban PEA.  Assay results from four other drill holes in this area are pending.

A total of 51 drill holes have been drilled at Marban since the beginning of the campaign in August 2020, focusing on the Kierens, Kierens NW, Gold Hawk, Orion, MK, North Shear, North North, and Marban NE zones. Assay results from 23 drill holes are pending.


Table 1: Drill Hole Intercepts

(only intercepts above 5 g/t Au * m are reported, cut-off 0.3 g/t Au above 200 m and 1.0 g\t Au below 200 m)

Drill Hole From (m) To (m) Interval (m) Au (g/t) Zone
O3MA-21-033 38.9 49.5 10.6 2.7 Triple North (new zone)
incl. 38.9 39.4 0.5 26.9
incl. 43.8 44.5 0.7 8.9
O3MA-21-033-W1 580.2 585.3 5.1 5.1 North Shear
incl. 581.1 581.6 0.5 13.1
incl. 583.1 583.8 0.7 15.2
O3MA-21-039 286.9 288.8 1.9 5.3 North North

NOTE: True width determination is currently unknown but is estimated at 65-80% of the reported core length interval for the zones.


Table 2: Drill Hole Details 

Drill Hole ID Azimuth(˚) Dip(˚) Length(m) UTM E UTM N
O3MA-21-033 206 -72 701 277929 5337816
O3MA-21-033-W1 206 -72 31 277929 5337816
O3MA-21-039 208 -73 666 277756 5337904


Hole O3MA-21-033 intersected a new zone called Triple North, at a vertical depth of approximately  30 metres. The hole intersected stockwork quartz-carbonate veins with disseminated pyrite and visible gold within an albitized and sheared granodiorite. The interval returned 2.7 g/t Au over 10.6metres, including 26.9 g/t Au over 0.5 metres and 8.9 g/t Au over 0.7 metres. The Triple North zone is open laterally and at depth.

The North Shear zone was intersected in hole O3MA-21-033-W1 and confirmed the depth continuity of the mineralized zone. The mineralized interval has been intercepted 200 metres below the last historical intercept of the North Shear zone, and returned 5.1 g/t Au over 5.1 metres, including 13.1 g/t Au over 0.5 metres and 15.2 g/t Au over 0.7 metres, expanding the potential of the zone further at depth. The mineralization is hosted within a quartz-carbonate vein with visible gold and disseminated pyrite at the sheared contact between mafic volcanics and a felsic dyke.

Hole O3MA-21-039 intersected the  North North zone at a vertical depth of approximately 200 metres and cross-cut an albitized granodiorite. Mineralization consists of quartz-carbonate-tourmaline veins with up to 2% disseminated pyrite. The intercept returned 5.3 g/t Au over 1.9 metres.


Figure 1: 03 Mining – Malartic Property Map03 Mining Malartic location map




 Figure 2: 03 Mining – Marban Project Drilling Map

03 Mining project map


About O3 Mining Inc.

O3 Mining Inc., an Osisko Group company, is a gold explorer and mine developer ready to produce from its highly prospective gold camps in Québec, Canada.

O3 Mining benefits from the support, previous mine-building success, and expertise of the Osisko team as it grows towards being 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 (137,000 hectares) in Québec. O3 Mining trades on the TSX Venture Exchange (TSX.V: OIII) and OTC Markets (OTCQX: OIIIF). The company is focused on delivering superior returns to its shareholders and long-term benefits to its stakeholders.

03 Mining – Further information can be found on our website HERE

For brevity, this summary has been abridged. To read the full news release, with drill results and disclosures, please click HERE




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At the time of writing the author held shares in 03 Mining, bought in the market at the prevailing price on the day of purchase.