The Eva Property is located in the James Bay area, Northern Québec. Radisson is the closest town located 45 km north of the project. Radisson is accessible year-round via the La Grande Rivière airport and the Route de la Baie James. The Matagami-Radisson road runs 30 kilometres west of the Property and summer access is via a jetty at the northern end of Sakami Lake at Km 56 on the Trans-Taïga gravel road located 30 km north of the northern property limit.
EVA GOLD PROJECT
The Frida property is located within the central part of the Superior Geological Province, which comprises four Sub-provinces: from north to south, they are the La Grande, Opinaca, Nemiscau and Opatica (Figure 4). Stratigraphy of the immediate area of Sakami Lake was well described by Goutier et al. (RG 99-15).
The La Grande Subprovince, defined as a volcano-plutonic assemblage, is characterized by narrow, sinuous, and partly interconnected greenstone belts surrounded and intruded by voluminous granitoid rocks. Structural trends are predominantly east-west to southeast-northwest. The subprovince consists of, from bottom to top, the Tonalite Langelier Complex (basement) dated to 2,778 ± 4 Ma, a mature arenitic sedimentary sequence (Apple formation) surmounted by a volcano-sedimentary sequence composed mainly of tholeiitic basalts, felsic volcanoclastites (dated to 2,732 Ma), and iron formations interbedded with sedimentary horizons (Yasinski group). These volcano-sedimentary sequences are cut by a series of intrusions of tonalite, diorite, monzodiorite, syenite (Duncan group, 2,709 Ma) and later ultramafics.
The Opinaca subprovince is a metasedimentary and plutonic subprovince located in the center of the Superior province between the Opatica subprovince and La Grande subprovince. The Opinaca subprovince is dominantly a sedimentary sequence of younger (≈2,618 Ma) clastic turbidites belonging to a much larger sedimentary basin (Laguiche basin). Polydeformed schists occur at the subprovince margins, whereas the interior portions are metamorphosed to amphibolite and granulite facies. The sedimentary units are commonly intruded by granodiorite, tonalite and pegmatite dykes.
According to the chronology of structural events from Goutier (RG 99-15), the first deformation episode, before the setting of the supracrustal unit, is visible into the tonalitic gneiss of the Langelier Complex. A second episode affects the volcano-sedimentary sequence of Apple-Yasinski. It is associated to a NW-SE tectonic movement and is responsible for kilometrical folding and imbrications. After the Duncan intrusion, which is associated with the third deformation, and the foliation of the intrusive units, a thrust fault brought the volcano-sedimentary unit in part over the metasediments of the Laguiche Group. Finally, a dextral (NW-SE) shear system affected the dome and basin structure.
The regional metamorphism varies gradually from the green schist facies in the North to the amphibolitic facies in the south. This progression is mostly observable through the metasediments of the Laguiche Group.
The geology of the Eva property is dominated by two rock types (Figure 5). Mafic volcanic rocks of the Yasinski Group are essentially basalts and amphibolites striking north to northeast. The basalts and amphibolites are often massive and recrystallized showing a microgabbroic texture. Some basalts contain biotite and garnet and are highly schistose. They are intercalated with iron formations. The dominant facies is that of oxides, consisting of magnetite and chert recrystallized by metamorphism. Several bands can be followed thanks to aeromagnetic surveys. The facies of the silicate-oxides comes second and easily recognized by the presence grained amphibole and garnet (RG 99-15). It is consisting of silicate levels more or less rich in chlorite, amphibole (grunerite), biotite and garnet and millimetric to centimetric beds of magnetite disseminated to massive. The rock is slightly rusty on the surface and contains small amounts of pyrrhotite and/or pyrite. This facies is sometimes host to strigiform gold mineralization.
The lithologies in the south portion of the property have been affected by regional folding. It lies in a fold hinge of a syncline P3 (RG 99-15) with an axial plane striking N0550 and dipping vertically
The second rock type is a hornblende-biotite tonalite intrusive rock of the Duncan Intrusive Suite (RG 99-15). The tonalite post-date the volcanic rocks and is variably deformed. The pink to grey pluton is homogeneous, affecting a white patina. It is a medium-grained plutonic rock composed of 40- 50 % plagioclase, 35-45 % quartz, 5-15 % hornblende and biotite with < 5 % of K-feldspar. Accessory minerals are epidote, titanite, and apatite.
Except for a grab sample taken by the MERN in 1997 which returned 29.4% Fe2O3 in an amphibolite, no mineralized showing was found on the property.
However, many showings were found to the south and to the east of the property (Figure 5). The discoveries include gold, zinc, nickel, chrome, iron, palladium and uranium. While uranium and nickel showings are located in the Apple Formation, the other showings, in particular gold, are located in the Yasinski Group.
Most of the showings were drilled and most failed to returned encouraging values except for the La Pointe gold showing which is the object of substantial drilling by Precious Metals Corporation (“PMC”) (website of the Company).
PMC identified three (3) distinct gold zones on the La Pointe sector, Zones 23, 25 and 26 from east to west. Zone 23 is located in a mixed sequence of intensely sheared amphibole-bearing mafic and felsic rocks. The following description of the showings are excerpts taken from the 43-101 Technical Report written by Vadnais Leblanc and al. (2017)(website of PMC). “This zone contains traces of disseminated sulphide, mostly pyrite and pyrrhotite and no obvious quartz veining. Zone 23 appears to be located in a fold hinge. Zone 23 was intersected with a value of 0.99 g/t Au over 2.94 metres and 0.81 g/t Au over 11.55 metres.”
“Gold mineralization within Zone 25 consists of a fine- to medium-grained, foliated paragneiss (quartz, plagioclase, and biotite characterized by local fracturation, white mica alteration, and local networks of millimetric quartz veins. Mineralization consists of disseminated arsenopyrite and pyrrhotite with minor pyrite (all totalling 1-5%). Recently, PMC announced the discovery of an extension to Zone 25 located about 2 km to the southwest. The discovery hole returned 1.15 g/t Au over 80.1 m. Zone 25 seems associated with the Sakami fault which is the frontier between the La Grande and the Opinaca sub-provinces.”
“Zone 26 is closely associated with a tightly folded magnetite-rich iron formation (oxides and silicates facies) hosted in pillowed mafic volcanic rock of the La Grande subprovince. Within the iron formation, sulphides are present in the form of disseminated clusters and local veinlets; magnetite is locally replaced by arsenopyrite and pyrrhotite. The replacement is more intense in the hinge zone of the eastern fold. In a small area, a few tens of centimetres across, the arsenopyrite content reaches 10% to 15%. It was intercepted in drill hole PT-13-71 (1.25 g/t Au over 5.88 m) and drill hole PT-13-67 returned 0.61 g/t Au over 12.61 m.”
Three periods of systematic mapping by governments took place on the property, Eade (1957), Sharma (RG 184) and Goutier (RG 99-15). Various local geological studies were also done in the area. Three rock samples taken by the MERN geologists were assayed and returned the following values:
In the mid 70’s, SDBJ and their partners were very active in the region. No records of ground prospection on the property is reported.
Upcoming Work 2020
The company is planning to do an airborne magnetic survey followed by a geological and prospecting survey across the property. A budget of around 100,000$ is allocated to that first phase.
A drilling campaign could follow based on the results obtained in the first phase.