The ARH (Sid North) occurrence is located at an elevation of approximately 960 metres on a southeast-facing slope of the Promontory Hills, approximately 12.5 kilometres northwest of Merritt.
Rocks of the Upper Triassic Nicola Group are exposed on the Promontory Hills and are intruded by the Lower Jurassic Guichon Creek Batholith to the north and the Coyle stock to the south and are unconformably overlain by the Lower Cretaceous Spences Bridge Group to the west and the Upper Cretaceous Kingsvale Group to the east. A large, slightly overturned, subisoclinal anticline plunges gently northeast. Faults trend northwest and northeast.
The occurrence is situated on the south limb of the major fold near the intrusive contact of Nicola Group volcanic and sedimentary rocks and the Coyle stock. The main rock types are massive to porphyritic andesitic flows and intermediate tuffs with some mixed quartzofeldspathic rocks, greywacke, argillite and limestone. The Nicola Group rocks are hornfelsed in the contact zone. The Coyle stock is diorite to quartz monzonite and is believed to be related to late-stage Nicola Group volcanism.
At the contact of limestone and Nicola Group volcanic rocks, small patches of garnet skarn host chalcopyrite and hematite mineralization. Disseminated magnetite and pyrite are also present.
Work History
In 1958, Noranda Mining and Exploration Inc. completed a program of geological mapping and an 85.5 line-kilometre ground magnetic survey on the area as the Merritt property. A 22.0 line-kilometre ground magnetic survey was completed on the property the following year.
In 1972, a program of soil sampling was completed on the area as the Chalco claims. In 1975, a further program of geological mapping and geochemical (rock and soil) sampling was completed on the Chalco claims.
In 2012, Huldra Silver Inc. completed a 903 line-kilometre airborne geophysical survey on the area as the Thule property. This work isolated six magnetic anomalies (A through F) with the potential for magnetite skarn development, similar to the nearby Craigmont (MINFILE 092ISE035) deposit.
In 2013, Dot Resources Ltd. completed a ground electromagnetic survey on the area as the Promontory Hills property. The following year, a program of geological photo interpretation was completed. In 2015, a program of geological photo interpretation and 26.7 line-kilometres of ground magnetic surveys were completed on the property. Also in 2015, Nicola Mining Inc. completed a program of rock and soil sampling on the area as the Thule Copper-Iron property.
In 2016, Christopher Delorme completed an 8 line-kilometre ground magnetic survey on the Promontory Hills property. Also at this time, Nicola Mining Inc. completed a program of prospecting, rock sampling, geological mapping and five diamond drill holes, totalling 1063.7 metres, on the Thule Copper property.
In 2017, Nicola Mining Inc. and Clibetre Exploration Ltd. completed a program of geological mapping; a 27.0 line-kilometre induced polarization survey; a 24.5 line-kilometre airborne magnetic survey; 29 rotary drill holes, totalling 392.0 metres, and 5 diamond drill holes, totalling 2994.7 metres, on the Thule Copper property.
In 2018, Nicola Mining Inc. completed a 9.0 line-kilometre ground magnetic and induced polarization survey, 70 percussion drill holes, totalling 1540.0 metres, and 16 diamond drill holes, totalling 6438.5 metres, on the area as the Craigmont property.
In 2019, Nicola Mining Inc. completed a program of soil sampling and five diamond drill holes, totalling 3649.0 metres, on the area as the New Craigmont property.
