Yellowknife greenstone belt feature. Yellowknife greenstone belt The Yellowknife greenstone belt, also called the Yellowknife Volcanic Belt, is an Archean greenstone belt in the southern Slave craton, Northwest Territories, Canada. It is mostly made of mafic volcanic rocks (basalt and andesite) and is bordered to the east by batholithic intrusions of the Western Granodiorite Complex and beyond to the north by the Duckfish Lake Granite. Intrusive equivalents (gabbro and diorite) are collectively known as the Kam Group. Most of the Yellowknife townsite and the Con and Giant gold mines are within the Kam Group. The Yellowknife greenstone belt stands out as a positive
Yellowknife According to Environment Canada, Yellowknife has the sunniest summer in the country, averaging 1,034 hours from June to August. The lowest temperature ever recorded in Yellowknife was on 31 January 1947, and the highest was on 16 July 1989. Yellowknife averages 2256.5 hours of bright sunshine per year or 43.5% of possible daylight hours, ranging from a low of 15.4% in December to a high of 63.0% in June. Due to its warm summer temperatures, Yellowknife is well below the Arctic tree line in stark contrast to areas further east in Canada on similar parallels. In 2014, Environment Canada ranked