Anahim Hotspot

The Anahim hotspot is a volcanic hotspot in central British Columbia, Canada. It is situated on the Interior Plateau, a large region that lies between the Cariboo and Monashee Mountains to the east, and the Hazelton Mountains, Coast Mountains to the west. As a geologic hotspot, it is a place that has experienced active volcanism over a long period of time.

Identifiable from the mid-Miocene period, it has recorded changes in the western-moving North American Plate because it is believed to have been relatively stationary for tens of millions of years. Since then it has formed a line of volcanoes called the Anahim Volcanic Belt, stretching from the coast to the Interior Plateau near Quesnel. Each of the volcanoes was once over the hotspot, but migration of the North American Plate has pulled the volcanoes away from the hotspot's magmatic source at a rate of 2 cm (0.8 in) to 3.3 cm (1.3 in) per year. As a result, the volcanoes are progressively older to the west. The composition of magma to the volcanoes and its supply change with time as the volcanoes grow over the hotspot and migrate away.

Read more about Anahim Hotspot:  Petrology and Geochemistry, Origin, Future and Present

Other articles related to "anahim hotspot, anahim":

Anahim Hotspot - Geological History - Nazko Cone Eruptive Period
... Throughout the Holocene epoch, the Anahim hotspot has energized numerous volcanoes ... The youngest expression of the Anahim hotspot is Nazko Cone, which formed about 340,000 years ago ... The Rainbow Range is the largest Anahim volcano, although Nazko Cone is now the site of the most intense volcanic activity, located directly on top of the Anahim hotspot at Coordinates 52°54′0″N 123°44′0″W ...
Anahim Hotspot - Future and Present - Seismology
... The Anahim hotspot is the only notable earthquake zone in the Canadian Cordillera away from the British Columbia Coast ...
Milbanke Sound Group - Geology - Origins
... In some classifications, they are grouped with the Anahim Volcanic Belt because they are parallel with its east-west trend ... because the volcanoes are much younger than other magmatic features at the western end of the Anahim Volcanic Belt ... The cause of this significant age change is because the Anahim Volcanic Belt has its origins from the North American Plate moving over the hypothesized Anahim hotspot ...