The Pyramid property is in the northwest of British Columbia, approximately 50 kilometres north of Dease Lake. The property lies within the northern part of the Late Triassic to Early Jurassic Quesnel terrane.
The property is underlain by volcanic and metasedimentary rocks of the Jurassic Shonektaw Formation. These rocks have been intruded by Triassic to Jurassic intrusives including hornblende diorites, quartz diorites and granodiorites. The project has experienced regional greenschist facies metamorphism. The plutonic rocks that host the East and Chilli zones mineralization define an approximately 12-kilometre long northwest-trending body. This intrusion hosts abundant xenoliths of Takla Group in the contact area and at least two prominent roof pendants, approximately 1 kilometre in diameter.
Quartz veins in the East zone are sheeted, typically less than 1 centimetre in width, have sharp vein boundaries and are blocky textured to banded. Vein mineralogy is predominately quartz with subordinate chlorite, calcite, ankerite, pyrite, pyrrhotite and chalcopyrite. Where vein halos are observed they are commonly less than 5 centimetres in width and contain silica, chlorite, pyrite, pyrrhotite and chalcopyrite. Fracture-controlled mineralization in the East zone occurs in up to 10 metre corridors, where quartz vein abundance is up to 5 per cent over the interval.
Sampling produced copper and gold mineralization with values up to 0.9 per cent copper and 1.1 grams per tonne gold (D00014021) and 0.96 per cent copper and 0.26 gram per tonne gold (D00014024; Assessment Report 36779). Outcrop grab sample D00014021 of hornblende phyric diorite porphyry hosted disseminated pyrite (greater than 2 per cent) and chalcopyrite (greater than 0.5 per cent). Strong iron oxide and minor copper oxide occurs along fractures.
In 2017, reverse circulation drilling on the East zone yielded intercepts of up to 0.28 gram per tonne gold over 28.95 metres, including 1.43 grams per tonne gold over 4.57 metres in hole PY-17-04 and 0.12 gram per tonne gold over 91.44 metres, including 0.13 per cent copper and 0.89 gram per tonne gold over 3.05 metres in hole PY-17-05 (Assessment Report 37605).
Work History
Gold Jubilee Capital Corp. staked the property in 2013 and conducted a field program which consisted of 1059 soil, 93 stream sediment, and 19 rock samples, reconnaissance scale (1:10 000) geological mapping, and a 408 line-kilometre airborne geophysical survey. Sample 2589803 assayed 1.69 grams per tonne gold (Assessment Report 34719).
In 2014 the company conducted a program that consisted of 695 soil, 33 rock, and 3 silt samples and a 32.3 line-kilometre Volterra 3D induced polarization survey. The best hand sample assayed 11.5 grams per tonne gold, 7.0 grams per tonne silver and 0.08 per cent copper (Exploration and Mining in British Columbia 2014, page 109). The 32.6 line-kilometre 3D induced polarization survey was carried out over the MT and Central zones at reconnaissance spacing (400 metres). This resulted in promising chargeability and resistivity anomalies at both the Central and MT zones. Soil sampling was focused on infill sampling of the Central zone and extension and infill sampling of the MT zone. Both areas yielded very anomalous results, but the MT zone stood out given its significant size.
In 2015, the MT zone was renamed the West zone. A total of 236 rock samples, 983 soil samples were collected and a 34.1-kilometre induced polarization survey was completed. The bulk of the 2015 program was focused on defining drill targets on the West zone. Infill 3D induced polarization was completed on the West zone bringing the line spacing from 400 to 200 metres. 2D induced polarization was completed over the East zone. Both surveys delineated significant chargeability anomalies that were coincident with geochemical anomalies. Additional infill soil sampling was completed bringing line spacing to 100 metres on the West zone and 200 metres at the Central zone. Geological mapping was completed on the West zone along with more detailed rock sampling there and on the East zone.
In 2016, 663.9 was drilled in five reverse circulation holes. A total of 162 rock samples, 23 soil samples and 2 stream sediment samples were collected.
The 2017 exploration program at the Pyramid gold-copper project consisted of 11 reverse circulation drill holes and 3 diamond drill holes, totalling 1366 metres, at the West zone and Central zone. No significant intercepts were reported for the Central zone. See West zone (MINFILE 104I 158 ) for details of that zone.
