Location, Access and Infrastructure
The Terra Nova Property is located 30 km west-northwest of the community of Port Blandford in Eastern Newfoundland. Access to the claims is via woods roads from the small community of Terra Nova 22 kilometers to the east. The property is transected by the Churchill Falls high voltage transmission line that also serves to provide access throughout parts of the property. The closest major center is the town of Clarenville that has excellent infrastructure with a broad range of service and equipment companies. Labour is also readily available in the region.
The property lies within the Gander Zone of the Newfoundland Appalachians. Central Newfoundland is an area of considerable recent exploration interest for gold such as at the Queensway Project owned by Newfound Gold and the Valentine Lake project owned by Marathon Gold.
The property is underlain by the Square Pond Gneiss, higher grade equivalents of the Gander Group, which comprises interbedded pelite, semipelite and psammite, intercalated with mafic sills or dykes. Immediately to the NW, the Maccles Lake Granite (MLG) is a generally homogenous porphyritic intrusion with a heterogenous fabric development.
Previous Exploration Work and Mineralization
The area has received very limited exploration work. Prior to 1981, parts of the Maccles Lake Granite were included in several reconnaissance programs conducted throughout the region, principally by Nalco in the 1950’s, which focused on areas north and west of the Maccles Lake Granite (e.g., Gates, 1954 and Wall, 1954). The only noteworthy item pertaining to mineralization in the granite was the discovery of a “few flakes of Molybdenite encountered at Gambo Pond” reported by Wall in 1954. Regional lake sediment sampling surveys carried out by the Geological Survey, Newfoundland Department of Mines and Energy (1981) revealed widespread, anomalous molybdenum and uranium in the area and drew attention to the mineralizing potential of the Maccles Lake Granite.
In the early 1980’s, commodities such as tin, tungsten, molybdenum and uranium were the principal metals of interest directing regional exploration programs. Favorable hosts for this type of mineralization were the peraluminous, S-type granites, e.g., Maccles Lake Granite. Companies involved included Noranda, Amax, Teck and Westfield (see French and Mugford, 2009 for overview). Tungsten, one of the principal metals which initially attracted exploration interest is elevated, particularly in the Island Pond area just to the south of the Terra Nova Property, but is not confined to the MLG with numerous elevated tungsten values recorded outside of and distal to the granite. In 2007/2008, North Range Resources also carried out exploration work, immediately west and northwest of the present property, for molybdenum and uranium. However, no significant mineralization was found (French and Mugford, 2009). Prospecting and geochemical sampling by Gordon Crocker (2007-2008), near Terra Nova Lake, resulted in the discovery of significant copper, bismuth, tungsten and silver mineralization in meta-sedimentary rocks (”Square Pond Gneiss”) of the eastern Gander Zone.
Recent exploration by prospectors Nancy and Scott Rogers who entered into an option agreement with CMC Metals Ltd. on the property, resulted in the discovery of new mineralization in Gander Zone meta-sedimentary rocks adjacent to the Maccles Lake Granite (Map 2). Prospecting followed the exposure of new outcrop by blasting operations associated with the construction of the transmission line from the Lower Churchill project. Extensive sampling of the blast rock within a several hundred meter area was undertaken. The blasted rock comprises mainly semipelitic to psammitic rocks of the Gander Group with overprint from the thermal effects of the Maccles Lake Granite. The rocks contain ubiquitous quartz veins, with locally semi-massive sulphides including abundant pyrite, chalcopyrite, galena and bornite.
The best values obtained in prospecting efforts from outcrop in 2018 in the area of the quarrying operations were 1048 ppb gold, 9.8 g/t silver and 366 ppm copper. The best values from boulders blasted from local outcrop are 1557 ppb gold, 120.6 g/t silver, 1862 g/t copper, 4400 g/t lead, 535 g/t bismuth and 1000 g/t tungsten.
Also in 2018, prospecting also identified a new area of sulphide-rich mineralization in quartz-veined boulders and outcrop (Map 2). Values of up to 6.9 g/t gold, 49.6 g/t silver and 0.16% copper were noted to occur in quartz veins. Massive, galena-rich veins have also been discovered and have been put in for assay. These new occurrences indicate that the mineralized zone is potentially much larger than previously thought and may be over several kilometers in extent. Other mineralized grabs sent for assay are expected to farther enlarge the mineralized zone.
Exploration work in 2019 extended the mineralized zone which now is estimated to be up to 12 square kilometers in size (approximately 4 kilometers in an east-west direction and 3 kilometers in a north-south direction) (Map 2). The best values from this work included a grab sample containing 480ppb gold, 159.6 g/t silver, 2.33% copper, 567g/t molybdenum, 1.01% lead, 280g/t bismuth, and >1000 g/t tungsten.
Plans are now underway to conduct additional prospecting within this mineralized zone. A preliminary survey is underway and that will then be used to finalize plans for exploration in 2021 and to facilitate project permitting.
Whereas the significant gold values may reflect a mesothermal source associated with quartz veins, as seen elsewhere in the Gander Group, the elevated bismuth, lead, and tungsten may reflect a granitic source for these elements.