The Volcano (British Columbia) future is probably more likely along the Northern Cordilleran Volcanic Province than in an unrelated volcanic zone outside the province. This is because the Northern Cordilleran Volcanic Province, which includes the Iskut-Unuk River Cones, is the most active volcanic zone in Canada. A small range of effects are expected from future eruptions at The Volcano. Its remote uninhabited location makes volcanic hazards less extreme and is therefore not very hazardous. Ash and rock fragments (tephra) ejected during lava fountain activity are unlikely to be high enough to disrupt regional air traffic. However, they could possibly endanger lower flying aircraft along
Nova Iguaçu Volcano underlain by pyroclastic rock. This rock originated from rock fragments created by a volcanic explosion. The valley is made up of trachyte, another igneous rock with massive texture. The pyroclastic rock was the main justification of the Nova Iguaçu Volcano hypothesis. The existence of a volcano at Nova Iguaçu was proposed by geologists Viktor Carvalho Klein and André Calixto Vieira in the 1980s. Klein and Vieira based their discovery on the presence of pyroclastic rocks (including volcanic bombs) and the existence of a volcanic crater. They believed the pyroclastic rock to be pyroclastic flow deposits, constituting an “extraordinary well-preserved complete