The Montalembert project is located in the mining-friendly Province of Quebec, currently ranked as one of the top ten jurisdictions worldwide for mining investment attractiveness.
The 26,645-hectare (65,839-acre) property lies 230 km northeast of Val d'Or and 125 km due west of Chibougamau; both are active centers for mining and exploration amenities. Year-round access is provided via a network of logging roads and paved Route 113, which passes within 5 km of the property. Accommodation and a local workforce is available in the nearby Cree village of Waswanipi.
Enforcer Gold is earning a 100% interest in the project from Globex Mining Enterprises Inc. (TSX: GMX).
The high-grade Galena and No.2 veins were Enforcer’s primary focus during its 2017 exploration program. Discovered in 1949, these veins were drill tested in 1950 using narrow gauge coring equipment. Of 7 holes drilled under the Galena and 3 holes under the No. 2 vein, only 2 core samples were collected from the No. 2 and assay results are unknown. Historical and recent surface sampling of the Galena and No. 2 veins has produced some remarkable assays. In 2017, Enforcer tested the vein systems at depth using large diameter HQ core drilling.
2017 EXPLORATION PROGRAM
Enforcer’s first exploration program on the Montalembert project commenced in March 2017 with an airborne Mag-EM survey. A comprehensive field program commenced in mid-May and ran uninterrupted through October 2017. The work program included:
- A high-resolution aeromagnetic VLF-EM survey flown over the entire 7300-hectare property
- 45 line-kilometre induced polarization survey completed over main vein occurrences
- Stripping and channel sampling of the Galena and No. 2 veins in both northern and southern directions
- 45 HQ core holes totalling 5,784 m drilled on the Galena and No. 2 vein structures
- Reconnaissance property-wide prospecting and sampling
- SRK Consulting undertook a preliminary structural analysis of the No. 2 vein, including field mapping, core logging and data interpretation
Highlights of the 2017 program include:
- 133 sawn channels were collected on the Galena-No.2-3 vein exposures; notable channel sample assays include:
- 3,310.00 g/t Au over 1.0 m in MCH225702
- 105.00 g/t Au over 1.0 m in MCH223576
- 104.68 g/t Au over 1.0 m in MCH225996
- 13.50 g/t Au over 1.0 m in MCH223539
- The historic No. 3 vein was determined to be the southern strike extension of the No. 2 Vein
- All 45 drill holes intersected structures with quartz+/-carbonate veining, sulphides and alteration
- Gold mineralization above 0.5 g/t was returned in 27 of 45 holes
- Visible gold was intersected in 5 holes drilled on the No. 2 vein: MDD170004, 170006, 170022, 170032 and 170039
- Notable drill hole assays on the No. 2 vein include:
- 197.13 g/t Au over 1.2 m including 782 g/t Au over 0.30 m in MD170006
- 13.70 g/t Au over 0.5 m and 17.50 g/t Au over 1.0 m in MD170022
- 4.71 g/t over 0.85 m in MD170028
- 17.5 g/t over 0.37 m in MD170032
- 8.51 g/t over 1.0 m in MD170043
- Drill testing of interpreted geophysical anomalies intersected the southern extension of the No. 2-3 vein structure and additional shear veins to the east
- Prospecting led to discovery of the northern extension of the No. 2 vein structure approximately 140 m from the end of the existing trench; channel sampling returned 3.46 g/t over 0.7 m
- No. 2 vein structure is now exposed on surface and/or intersected by drilling over a 600 m strike length (open) and up to 140 m vertical depth (open)
- Galena vein structure is exposed at surface over a 300 m strike length (open)
The No. 2 vein structure has proven to be the most continuous and productive of the two main vein structures. Historically, the Galena vein received the most attention based on its more robust surface expression. Drill testing of the Galena vein at depth did not intersect the same degree of shearing and quartz veining that is present at surface, suggesting that the structure diminishes at depth where tested. The No. 2 vein structure however, does persist at depth to at least 140 m (open) and has a much greater strike extension of 600 m (open).
Based on a structural analysis by SRK Consulting, the shear zones at Montalembert form an anastomosing network and define a deformation corridor that is more than 100 metres wide. Ten discrete shear zones were modelled within the deformation corridor. Gold is mainly associated with shear veins that parallel their host shear zone and vary in thickness from less than 10 cm to 2 m wide. At surface, gold mineralization above 1 g/t gold primarily occurs in flexures where the veins bend, their dip shallows, and vein thickness increases. This is interpreted to result from dilation caused by the change in orientation of the shear veins and the dextral-reverse kinematics of the shear zone. Some quartz vein intervals are barren despite having intense alteration and sulphide mineralization. This is interpreted to be caused by a strong gold nugget effect within the vein system. Overall, drill hole assay results are similar to surface channel samples but are significantly lower than the grades of the historical bulk samples.
SRK has made the following recommendations for a follow-up exploration program at Montalembert:
At deposit scale:
- Target the more shallow-dipping parts of shear zones
- Investigate the discrepancies between the gold grades of drill hole and channel assays relative to the historical bulk samples to better understand the gold nugget effect
At property scale:
- Explore the extensions of the currently-defined deformation corridor, paying particular attention to variations in the dip of the shear zones
- Map the distribution and orientation of all shear zones and shear veins on the property and integrate it with the distribution of lithological contacts, folds, and faults to generate a comprehensive geological map that can be used for targeting
In addition to SRK’s recommendations, Enforcer is contemplating a surface bulk sample of the No. 2 vein to get a better indication of the gold mineralization that potentially continues with depth.
During the 2017 field program the Company’s exploration team also undertook a property-wide reconnaissance prospecting program. Results will be released following full compilation and review.
GEOLOGY & MINERALIZATION
Montalembert is situated within the prolific Abitibi Greenstone Belt that has produced over 180 M oz. of gold since early 1900s.
The property is located at the northeast end of the Archean-aged Abitibi sub-province, situated between a major anticline to the south and a syncline to the north. The 80 km long, east-west trending Kapunapotagen structural break lies just northeast of the property boundary. The regional geology has been linked with that of the Chibougamau area. At the property scale, the volcanic rocks and their comagmatic gabbro intrusives lie between the Waswanipi and the Capisisit plutons.
The emplacement of the plutons strongly deformed and metamorphosed the rock units, reorienting the stratigraphy sub-parallel to their contacts (N-S) and inducing shear deformation. The Capisisit Pluton may have been the heat source for remobilization of the quartz and gold in the shear zones on the property. The Capisisit Deformation Zone spans 15 km and is host to multiple gold-bearing structures
The Galena and No. 2 veins, among other gold-bearing vein structures on the property, represent classic shear-hosted quartz-carbonate gold mineralization. The silicified and quartz-bearing shear zones host 1-5% pyrite and/or pyrrhotite with trace amounts of chalcopyrite, galena and free gold.This style of mineralization is well known to be erratic in terms of grade and continuity and the presence of coarse gold makes sampling and assaying of this style of mineralization especially challenging. The potential understatement or overstatement of grade is commonly referred to as the “nugget effect”.
Reports of the first gold discovery south of the project area instigated a staking rush in 1947. The Galena, No. 1, 2, 3 and Rabbit veins were discovered in 1949 by N.A. Timmins (1938) Inc.
Recorded sampling of the Galena vein in 1949-50 included gold assays of 5.03 oz/T over 1.3 ft and 2.4 oz/T over 2.6 ft*. In 1950, N.A. Timmins drilled 30 holes over the gold showings; however, only 7 holes were drilled below the Galena Vein and 3 holes below the No. 2 vein. Despite over 200 logged occurrences of veining and mineralization in the 30 holes, only 10 samples were collected including 2 from the No. 2 vein; results are unknown.
No further work was reported in the immediate area until 1973, when Rochelom Mines conducted a bulk sampling program on the Galena Vein. Rochelom drilled and blasted a ~0.6 m wide trench along a 123 m length of the vein. In total, 80 grab and 80 bulk samples of muck were collected, representing some 5 tons of blasted material.
The grab samples averaged 31.89 g/t (0.93 oz/T) over 123.0 m and the bulk sample averaged 12.69 g/t (0.37 oz/T) over 108.2 m. The bulk sampling program was supervised by independent mining engineer, C.A. Veilleux**.
In his report, Veilleux concluded that the 1950 drilling program would not have accurately tested the Galena vein due to the nature of the mineralization and the relatively small core size. Veilleux recommended an underground exploration program to drift along the Galena and No.2 veins; however, no further work was undertaken. This was the last gold-focused exploration in vicinity of the veins until 2015.
The bulk sampling program was the last gold-focused exploration in vicinity of the veins until 2015, when Globex Mining extended the exposures and mapped and channel sampled across the Galena and No. 2 veins. Enforcer Gold optioned the property from Globex in November 2016.
Quality Assurance & Quality Control:
Montalembert Project QAQC
*Weber, W., 1951: Letter summarizing the 1950 exploration program by N.A. Timmins (1938) Ltd., GM 01351.
**Veilleux, C.A., 1974: Rochelom Mines Ltd. Bulk Sampling Program, Montalembert Township, GM 30084.
***Berube, M., 1985: Falconbridge Nickel Ltd. Geophysical and Geochemical Report (Induced Polarization, Rock and Soil Geochemistry). Montalembert Township, GM 42317.
* Historical reports of exploration predate the implementation of National Instrument 43-101. The Company considers this information to be relevant and that the exploration was conducted by reputable companies using standard industry practices. The Company cautions however, that until verified through the course of its ongoing exploration programs, this data should be considered historical in nature and not be relied on.