The Carbenet No. 2 occurrence is situated on Crown grant Lot 6811 in the Slocan Mining Division. The property is at 1675 metres elevation above sea level near the headwaters of Robb Creek.
Regionally, the area lies on the western margin of the Kootenay Arc, in allochthonous rocks of the Quesnel Terrane. In the vicinity of the occurrence, the Quesnel Terrane is dominated by the Upper Triassic Slocan Group, a thick sequence of deformed and metamorphosed shale, argillite, siltstone, quartzite and minor limestone. Rocks of the Slocan Group are tightly and disharmonically folded. Early minor folds are tight to isoclinal with moderate east plunging, southeast inclined axial planes and younger folds are open, southwest plunging with subhorizontal axial planes. The sedimentary sequence has been regionally metamorphosed to lower greenschist facies.
South of the occurrence, the Slocan Group has been intruded by the Middle Jurassic Nelson intrusions which comprise at least six texturally and compositionally distinct phases ranging from diorite to lamprophyre. The most dominant phase is a medium to coarse grained potassium feldspar porphyritic granite. Several feldspar porphyritic granodiorite dikes, apparently related to the Nelson intrusions, also cut the sedimentary sequence near the occurrence (Paper 1989-5).
On the Carbenet No. 2 property, the sedimentary rocks of the Slocan Group strike northwest and dip steeply southwest. The sedimentary sequence is intruded by a lenticular, medium grained, biotite granodiorite dike up to 200 metres wide. The dike underlies most of the northern part of the Crown grant; the sedimentary- igneous contact strikes southeast.
A 15-centimetre wide shear is developed within the granodiorite near the sedimentary contact. The shear, which strikes 060 degrees and dips 50 degrees southeast, has been explored with two short adits. Within the shear the granodiorite is crushed and partly cemented by quartz and galena. Other unknown sulphides are also present (Geological Survey of Canada Memoir 184).
