Project Technical Sheet
Project 1
Dolodau
Gold, tungsten and silver around three syenites and a granodiorite, 12 km from the Kenorland–Newmont discovery, with a niobium–rare earth carbonatite and a tungsten–tin target.
- Commodities
- Gold, Tungsten, Silver, Niobium, Rare earth elements
- Region
- Chapais–Chibougamau, Québec
- Status
- To be provided
- Project no.
- 1 (blocks 1a to 1e)
- Claims
- 244 · 13,578 ha (MRB and F. Guillemette 100%)
- Access
- ≈ 22 km west of Chapais · Route 113 and forestry roads
- Exploration targets
- 3 syenites and 1 granodiorite (gold) · Simard below 140 m · Nb–REE carbonatite · W–Sn target
- Sub-projects
- 5
Project summary
The Dolodau project comprises 244 claims covering 13,578 ha, held 100% by MRB and F. Guillemette, about 22 km west of Chapais in the Chapais–Chibougamau area of Québec. It is explored for gold, tungsten and silver around three syenites and a granodiorite, 12 km from the Deux Orignaux discovery made in a syenite by Kenorland Minerals and Newmont (157 m at 0.41 g/t Au).
Gold at Dolodau follows the syenite-related model of the Deux Orignaux discovery (2024) and of the former Lac Shortt mine (about 400,000 oz). The Fardoche (10 km², 1a) and Jean-Luc (1b) syenites, and a granodiorite to the south with tungsten values, are drill targets.
The Simard showing (1b) carries high-grade tungsten, gold and silver: channel samples at surface returned 14.9% WO₃ over 0.6 m and 8.3 g/t Au with 44 g/t Ag over 1.5 m, and a 2016 grab sample returned 30.2 g/t Au with 226 g/t Ag. Near the showing, the Oriana carbonatite (1c) is fertile in niobium and rare earth elements, with phosphate potential: drill hole ORI-12-01 intersected 1.16% TREO, 0.16% Nb₂O₅ and 23 g/t Ag over 1.5 m at 358.5 m. MERN rock samples returned up to 45,000 ppm W and 5,700 ppm Sn, a tungsten–tin target (1e).
Stripping carried out in 2016 exposed the deformation zone over 107 m, within a 182 m corridor that remains open at both ends. Only one of the 16 induced polarization (IP) anomalies outlined on the zone has been tested to date.
Location
The claim blocks lie between latitudes 49.70° and 49.83° N and longitudes 75.04° and 75.36° W.
5 sub-projects
| Block | Sub-project | Exploration focus |
|---|---|---|
| 1a | Dolodau Gold | Syenite-related gold: the Fardoche syenite (10 km²) interpreted as a gold target. |
| 1b | Dolodau W-Au-Ag (Simard) | Simard showing: tungsten (scheelite), gold and silver, 2016 stripping and IP anomalies; Jean-Luc syenite. |
| 1c | Nb-REE carbonatite (Oriana) | Oriana showing: carbonatite with niobium, rare earth and phosphate potential; “Charlie” syenite with gold potential. |
| 1d | Chapais 19 km W | Description to come. |
| 1e | W and Sn target (till survey) | Tungsten–tin target: MERN rock samples up to 45,000 ppm W and 5,700 ppm Sn; till survey. |
Historical exploration results
Results from earlier exploration work, as reported in the sources cited (GM numbers refer to assessment reports in Québec's SIGÉOM database).
| Result | Sample / location | Block | Reference | Date |
|---|---|---|---|---|
| 14.9% WO₃ over 0.6 m | Channel sample at surface, Simard showing | 1b | GM 50758 | – |
| 18.92% WO₃ | Grab sample | 1b | – | 2016 |
| 30.2 g/t Au and 226 g/t Ag | Grab sample at surface, Simard showing | 1b | MRB project sheets, Chibougamau congress (v3), November 2026 | 2016 |
| 15.9 g/t Au and 95.1 g/t Ag | Sample E5199823 | 1b | – | July 2016 |
| 37 g/t Au | Surface sample, D-Sud stripped area | 1b | – | – |
| 10.6% WO₃ over 0.65 m | Channel sample no. 5, Simard shear zone | 1b | WMC, Table 1A | Autumn 1990 |
| 8.3 g/t Au and 44 g/t Ag over 1.50 m | Channel sample at surface (trench), Simard showing | 1b | GM 50758 | – |
| 3.7 g/t Au and 22 g/t Ag over 1.50 m | Trench | 1b | GM 50758 | – |
| 1.16% TREO and 0.16% Nb₂O₅ over 1.5 m | Drill hole ORI-12-01, at 358.5 m, Oriana carbonatite | 1c | GM 66749 | 2012 |
| 23 g/t Ag over 1.5 m | Drill hole ORI-12-01, sample N121174, at 358.5 m | 1c | GM 66749 | 2012 |
| 0.70 g/t Au and 15.9 g/t Ag over 1 m | Drill hole 1459-03, at 110 m (also 0.61 g/t Au over 0.65 m at 70 m) | 1b | MRB project sheets 2026 (Punch Xplor V10) | 1988 |
| 0.49 g/t Au over 1 m | Drill hole 1459-01, at 138 m | 1b | MRB project sheets, Chibougamau congress (v3), November 2026 | 1988 |
| Up to 45,000 ppm W and 5,700 ppm Sn | MERN rock samples, sectors 1c and 1e | 1e | MRB project sheets, Chibougamau congress (v3), November 2026 | – |
Some exploration results presented here are historical in nature and have not been verified according to current NI 43-101 standards. Grab samples are selective by nature and are not necessarily representative of the mineralization on the property.
Targets for the next phase
Exploration targets are conceptual in nature and subject to further exploration work. They are not mineral resources.
- Target 01 – Mapping, till and IP over syenites 1 and 2
First step of the proposed programme: geological mapping, till sampling and induced polarization (IP) surveys over the Fardoche (1a) and Jean-Luc (1b) syenites. - Target 02 – Discovery drilling in the syenites and granodiorite
Drill the three syenites (SIGÉOM mapping) and the granodiorite to the south (MRB mapping), which carries tungsten values, for syenite-related gold: the model of the Deux Orignaux discovery and of the former Lac Shortt mine. They have yet to be tested. - Target 03 · Block 1b – Simard showing below 140 m
Drill below 140 m at the Simard showing, under the high-grade tungsten–gold–silver channels; historical hole 1459-01 returned 0.49 g/t Au over 1 m at 138 m. - Target 04 · Block 1c – Oriana niobium–rare earth carbonatite
The Oriana carbonatite, intersected by drill hole ORI-12-01 near the Simard showing, is a target for niobium, rare earth elements and phosphate. The adjoining “Charlie” syenite is considered to have gold potential. - Target 05 · Block 1e – Tungsten–tin target
MERN rock samples returned up to 45,000 ppm W and 5,700 ppm Sn in sectors 1c and 1e; a till survey covers the target.
Regional geological context
Information on neighbouring properties, reported by other companies. These are not MRB results, and mineralization on neighbouring properties is not necessarily indicative of mineralization on Dolodau.
- Deux Orignaux discovery. A new gold discovery was made in 2024 in a syenite target at “Lac des Deux Orignaux”, on the Chebistuan project optioned by Newmont from Kenorland Minerals. Drill hole 23DODD005 returned 157.20 m at 0.41 g/t Au, including 20.61 m at 0.97 g/t Au. (Source: Kenorland Minerals Ltd., 2025)
- Dolodau's syenite targets. The three syenite targets of Dolodau lie approximately 12, 15 and 19 km from the Deux Orignaux discovery. (Source: MRB compilation)
- Former Lac Shortt mine. Near Chapais, the former Lac Shortt gold mine, in a syenite–carbonatite setting, produced 2.7 Mt at 4.6 g/t Au, about 400,000 ounces of gold. (Source: MRB project sheets 2026 (Punch Xplor V10))
Maps and photographs
Technical references
Sources cited on this sheet. GM numbers refer to assessment reports in Québec's SIGÉOM database.
- GM 50758
- MRB project sheets, Chibougamau congress (v3), November 2026
- WMC, Table 1A
- GM 66749
- MRB project sheets 2026 (Punch Xplor V10)
- Kenorland Minerals Ltd., 2025
- MRB compilation
- MRB corporate presentation, 2026 (detail)
- MRB corporate presentation, 2026
- MRB ArcGIS map, layer “Contours MRB”