The Fecteau property is located in the south-central part of NTS map sheets 32G/03, immediately north of map sheet 32B14 and approximately 120 kilometres south of Chapais. The L-209 main lumber access road cuts through the central part of the property where several secondary lumber access roads provide easy access to most of the property. The claim block lies within the northeastern part of Buteux Township with a small portion extending into northwestern part of Marceau Township, within the Chibougamau Mining District, Province of Quebec.
The property consists of one claim block containing 107 claims for a total of 5,979.02 hectares in the Townships of Buteux and Marceau, and is located 132 kilometres east of the town of Quévillon. Gilbert Lamothe is the registered holder of 100% interest in the Fecteau claim block subject to an option agreement with Opus One Gold Corp.
The Fecteau Property is located in the southeast corner of the Urban-Bary Greenstone Belt (UBG) of the Abitibi Subprovince of the Archean Superior Province. The Urban-Barry Greenstone Belt is roughly 135 km long and varies from 4 to 20 km in width (Bandayayera D. 2004). It is bordered to the north by the Coapatina belt, to the south by the Barry Complex and the Souart Pluton. At its western extremity it is bordered by the Quévillon Group. To the east it is truncated by the northeast-southwest striking Grenville Province, where the east-west stratigraphy of the belt is abruptly terminated along the Grenville Front. The Front separates greenschist facies rocks of the UBG from upper amphibolite facies rocks of the Grenville Province.
The property is located in the southeastern part of a polycyclic volcanic belt (Bandayayera 2004). The stratigraphy is dominated by massive and pillowed mafic lava flows locally interbedded with or crosscut by mafic co-magmatic sills or dykes. Several minor felsic to intermediate volcanic units and felsic to intermediate tuff horizons are intercalated in the belt stratigraphy.
The Fecteau property is underlain by massive and pillowed mafic to intermediate volcanics of the Fecteau Formation. Basalt and Basaltic-Andesites predominate and include massive fine grain units with gabbroic/dioritic textures and pillowed flows. No polarity could be determined. The volcanic rocks are locally intercalated with volcaniclastics/sediments, which occur on the north flank of the east trending Lac Fecteau Synform. The tuffaceous units consist in a series of felsic volcanic and volcaniclastic rock units intercalated with metric units of graphitic mudstone and shales with disseminated, nodular and massive sulfide (PY-PO) lenses. These conductive units respond well to geophysical electromagnetic methods. Several were located while prospecting with a Beep Map in areas of thin overburden and a number were drill tested by previous exploration companies.
The Fecteau property is located to the east of some major gold deposits being actively developed (Windfall and Barry deposits). To date there are no deposits with defined resources within the Fecteau Property. However, several gold showings occur containing similar geological and structural context to known deposits. The following showing descriptions highlight the potential of the Fecteau property to host gold and/or base metal deposits.
- The Lac Fecteau Est gold showing has had limited drilling. The showing was discovered by SOQUEM in 1987 while resampling an old Shell drill hole (7515-77-16). It returned 2.42 g/t Au over 2.65 m which included a section carrying 6.59 g/t Au over 1.00 m (Coté et al., 1977; Hussey, 1987). A series of follow-up drill holes by SOQUEM intersected a series of ENE-WSW shear zones containing quartz veins with carbonate, tourmaline and sulfides. The best average grade ovtained was 1.82 g/t Au over 4.9 m in drill hole 111036-88-16 (Racine, 1989) the gold is associated with PO and traces of CP and AS.
- The Buteux-Marceau showing was discovered by SOQUEM while conducting a mapping and prospecting program over Shell geophysical anomaly (#95) at the eastern end of the Urban-Barry greenstone belt. During the initial reconnaissance mapping and sampling program in1987, a grab sample returned 4.11 g/t gold from a small, isolated outcrop. Follow-up detail mapping and prospecting returned lower values 1.49 and 1.20 g/t gold from the same exposure. SOQUEM then carried out an IP survey followed by two drill holes to crosscut the full extent of the IP anomaly and surface samples. Hole 111036- 88-19 intersected four zones with gold values (From 13.25 To 13.65 m – 1.10 g/t Au in a zone with 5-7% PY-PO podiform, From 52.00 To 52.40 m – 1.19 g/t Au in a silicified and sericitized zone carrying up to 2% disseminated fine grain AS, From 59.95 To 60.30 m –
- 1.64 g/t Au in a zone carrying 3-5% PY-PO with up to 1% disseminated AS. This showing was never followed-up along strike.
- The Lac Pistolet showing consists of a 5 to 10 cm quartz carbonate chlorite vein with traces of sulfides. It is associated with a minor shear zone at 265°/-60° cross cutting basalts and Gabbros of the Fecteau Formation. A grab sample returned 1.08 g/t Au and 1.91% Cu (Racine, 1989).
- Lac Pistolet Nord Est : A grab sample from a 30 cm thick north-south quartz vein with ~0.5% CP nodules returned an assay of 2.58% Cu (Racine, 1989). Follow-up channel samples by Opus One returned only weakly anomalous values.
- Lac Pistolet Nord Ouest: Two drill holes intersected this showing (Hussey, 1987) which returned interesting base metal values in a massive to semi-massive sulfide zone within a graphitic argillite unit part of the intermediate to felsic volcanic Fecteau Formation. Zinc values reach up to 1.6% Zn over 1.6m and the full mineralized zone averages 0.47% Zn over 6.8m.
- Desgagné: This showing was found in a trench over a massive sulfide (PY-PO) unit within intermediate to felsic tuffs of the Fecteau Formation. It is unknown if the 1.00 g/t Au value is associated with the massive sulfide or the NNE structure that crosscuts the unit. This structure could be related to the La Concession fault located approximately 875 metres to the west.
- Lac Fecteau Nord: This showing was discovered in drill hole 7515-77-12 containing 1.71 g/t Au over 1.5 m. and a second interval in the same hole returned 0.82 g/t Au over 1.5 m (Coté et al., 1977). The gold is associated with massive to semi-massive PY-PO bands 1.0 to 3.0 cm thick in brecciated felsic volcanic unit of the Fecteau Formation.
- Lac Fecteau Porphyry – LF12-02 Showing : The Fecteau Porphyry discovery was made during a reconnaissance exploration program and followed-up by trenching in 2017. The original grab sample collected from a strongly altered and weakly mineralized Quartz Porphyry returned 1.87 g/t gold. Mineralization consists of 0.5-1.0% disseminated very fine grain pyrite with traces tourmaline and a fine network of quartz veinlets. Rounded quartz eyes up to 5mm are evident and makes up approximately 3% of the rock locally. The matrix is completely altered to a fine white powdery mineral (SER). Follow-up trenching and channel sampling exposed a 2.0m wide quartz vein/quartz stockwork zone over a length of 40m. Gold values varied from less than 1.0 g/t up to 7.09 g/t.
The trenching program exposed a mineralized quartz vein and associated quartz stockwork surrounded by a large and strong alteration halo that was the focus of the 2018 drilling program. This follow-up drilling program was successful in defining the gold structure and highlighted that the Lac Fecteau Porphyry Auriferous Zone is continuous over the full length tested by the 2018 drilling program. Based on the trend of the zone it is now inferred to correlate with the LF12-02 gold showing found by Hinterland in 2012, 450 meters to the east along strike. The east-west shear zone transects the local stratigraphy of Lac Fecteau Syncline and may be a conjugate structure related to the Frank fault which defines the southern boundary of the greenstone belt with the Barry complex
FUTURE DRILL TARGETS
Inlandsis completed a reconnaissance and a follow-up till sampling program over the Fecteau property and defined five target areas (A, B, C, D & E) as the potential source areas for the gold grains found in till. Based on these results Opus One completed three dipole-dipole induced polarization survey grids over the areas identified as the source areas of the gold grains. IP survey Grid-A covered gold grain Target-A and E while IP survey Grid B and D covered gold grain Targets-B and D respectively. Gold grain Target-C was not followed-up during this phase of exploration.
Gold Target-A – Induced Polarization Survey Grid-A
The source of the gold in the till was not identified. Overburden cover may still mask the source area. The IP survey identified five IP anomalies in the projected source area (PP-1, PP-2, PP-3, PP-4 and PP-5). IP anomalies PP-1 and PP-2 were drill tested by Soquem and identified as a sulfide bearing graphitic horizon several kilometres long. IP anomalies PP-3 and PP-5 were not tested and remain targets of interest as they are located up-ice of the gold in till.
Gold Target-B – Induced Polarization Survey Grid-B
The source of the gold in the till was not identified. The IP survey identified four IP anomalies on this target. (PP-1, PP-2, PP-3 and PP-4). The nature of the anomalies PP-1 and PP-2 were explained by sulfide bearing graphitic units outcropping along the lumber access road and drilled by both Soquem and Vior previously between IP Grids B and D. However, anomaly PP-3 and PP-4 remains unexplained. IP anomaly PP-4 lies up-ice of the gold in till and should be tested by drilling to explain the nature of the anomaly.
No ground geophysics or prospecting was done on Gold Target-C as it is located near the eastern boundary of the property and not easily accessible.
Gold Target-D – Induced Polarization Survey Grid-D
The source of the gold in the till was not identified. The IP survey identified three IP anomalies on this target. (PP-1, PP-2 and PP-3). The nature of anomaly PP-2 appears to be the same sulfide bearing graphitic horizon identified along the lumber access road east of IP Grid-D and west of IP Grid-B. However, anomalies PP-1 and PP-3 remain unexplained and lies up-ice of the gold in till.
Gold Target-E – Induced Polarization Survey Grid-A
Gold in till anomaly Target-E was not completely covered by the IP survey Grid-A and due to heavy overburden, no rock samples were collected on this target. The source of the gold in till anomaly remains unexplained. IP anomaly PP-7 remains a potential source area for the gold grains found in the till.