Size and Location
14,713 ha - EEYOU-ISTCHEE, JAMES BAY, QUEBEC
EASTMAIN RESOURCES: 36.7%
NEWMONT GOLDCORP: 36.7%
AZIMUT EXPLORATION: 26.6%
Distance from Newmont Goldcorp’s Éléonore Mine
APPROXIMATELY 5 KM FROM THE ÉLÉONORE MINE, ADJACENT TO THE SE BORDER OF THE ÉLÉONORE PROPERTY
EXPLORATION (DISCOVERY ANNOUNCED, 2017)
The Éléonore South Joint Venture (“ESJV”) is held by Eastmain (36.72%), Azimut Exploration Inc. (“Azimut”) (26.57%), and Newmont Corporation (36.71%). The ESJV was formed in 2008. In 2016, the partners reactivated the JV, to focus in the east sector of the property, with discoveries announced in 2017 on the Moni and Contact Trends. Exploration today continues to focus on the metasediment and tonalite contact in the east. Eastmain currently acts as manager and operator of the joint venture on behalf of the partners.
The ESJV property is an exploration-drilling-stage project consisting of 282 mining claims covering 147 km2 of prospective lands. The Éléonore South property is also located contiguously to west and south of the Sirios Resources Inc. (“Sirios”) Cheechoo property and is also contiguous to the north and west with property controlled by Newmont Goldcorp. The ESJV is accessible by helicopter from the mine’s airport or from other staging point along the mine road and located 12 km SE of the Newmont Goldcorp Éléonore gold mine. For 2020, the Éléonore production outlook is ~360,000 ounces of gold. The nameplate capacity of the Éléonore mill is 7,500 tpd, currently operating below capacity.
The late (2.61 billion year-old) tonalite is interpreted to be a mushroom shaped intrusion with a 450 to 500 m thick, roughly tabular top having a shallow to moderate dip to the south along its southern contact and a moderate dip to the west along its western contact (JT Prospect area). The current interpretation suggests the intrusion has not been overturned. The Contact Trend is interpreted to represent a decompression stockwork zone close to the top of the intrusion. This mineralized zone may extend downwards, parallel to, and below, the contact with the overlying metasedimentary country rocks.
Numerous indicators suggest this tonalite-hosted corridor corresponds to a large-scale late-magmatic hydrothermal system. These include the presence of local hydrothermal breccia, sheeted veins, extensive and significant intervals of pervasive silicification and albite alteration. Variable amounts of biotite, albite and actinolite alteration along with low levels of disseminated pyrite (py), pyrrhotite (po) and arsenopyrite (aspy) are also present. This type of alteration and sulphide mineralization correlate to results reported by Sirios nearby in the Cheechoo tonalite. Gold commonly occurs as small discrete visible gold grains.