The Nub Northeast occurrence is located on a northeast-facing slope at an elevation of approximately 1550 metres, southeast of Jock Creek and approximately 2.8 kilometres south-southwest of the creekâs junction with the Toodoggone River.
Regionally, the area is situated within a Mesozoic volcanic arc assemblage, which lies along the eastern margin of the Intermontane Belt, a northwest-trending belt of Paleozoic to Paleogene sediments, volcanics and intrusions bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins.
Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Stuhini Group andesite flows and pyroclastic rocks, and marine sedimentary and volcanic rocks of the Lower to Middle Jurassic Hazelton Group. These rocks have been intruded by plutons and other bodies of the mainly granodiorite to quartz monzonite Early Jurassic Black Lake Suite and are in turn unconformably overlain by or faulted against Lower Jurassic calc-alkaline volcanics of the Toodoggone Formation (Hazelton Group).
The dominant structures in the area are steeply dipping faults that define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high-angle, northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.
Locally, volcanic rocks host disseminated pyrite and chalcopyrite with associated malachite. Massive magnetite skarn zones are also reported in the immediate area and are likely related to Asitka limestone.
In 2004, a chip sample (185844) of subcrop assayed 0.19 gram per tonne gold and 17.3 grams per tonne silver over 0.15 metre, whereas three other chip samples (185841 to 185843) of outcrop yielded from 0.02 to 0.10 gram per tonne gold, 13.1 to 29.1 grams per tonne silver, 0.393 to greater than 1.00 per cent copper and 0.033 to greater than 1.00 percent zinc over lengths of 0.15 to 0.30 metre (Assessment Report 27634). A sample of massive magnetite (185883) assayed greater than 200.0 grams per tonne silver (Assessment Report 27634).
Also, at this time, a float sample (185593), taken approximately 800 metres to the west-northwest and containing pyrite and galena, assayed 0.17 gram per tonne gold, 32.3 grams per tonne silver and greater than 1.0 per cent lead and zinc, respectively (Assessment Report 27634).
Work History
In 2003 and 2004, Stealth Minerals Ltd. completed programs of prospecting, geological mapping and rock, silt and soil sampling on the area as the Nub claims.
In 2016 and 2017, Pacific Empire Minerals Corp. completed programs of rock and soil sampling, geological mapping and a 62.0 line-kilometre airborne magnetic survey on the area as the Nub East property.