Natural Hazards in Canada - Natural Hazards in British Columbia, Seismic Zones of Canada, Volcanism of Canada, Volcanic History of the Northern Cordilleran Volcanic Province, Bowie Seamount, Cascadia Subduction Zone, the Barrier (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 33. Chapters: Natural hazards in British Columbia, Seismic zones of Canada, Volcanism of Canada, Volcanic history of the Northern Cordilleran Volcanic Province, Bowie Seamount, Cascadia subduction zone, The Barrier, Western Quebec Seismic Zone, Mount Breakenridge, Meager Creek, Garibaldi, British Columbia, Charlevoix Seismic Zone, Salmon Glacier, Laurentian Slope Seismic Zone, Northern Appalachians Seismic Zone, Southern Great Lakes Seismic Zone. Excerpt: Volcanism of Canada has produced lava flows, lava plateaus, lava domes, cinder cones, stratovolcanoes, shield volcanoes, submarine volcanoes, calderas, diatremes, and maars, along with examples of more less common volcanic forms such as tuyas and subglacial mounds. It has a very complex volcanological history spanning from the Precambrian period at least 3.11 billion years ago when this part of the North American continent began to form. Although the country's volcanic activity dates back to the Precambrian period, volcanism continues to occur in Western and Northern Canada where it forms part of an encircling chain of volcanoes and frequent earthquakes around the Pacific Ocean called the Pacific Ring of Fire. But because volcanoes in Western and Northern Canada are in remote rugged areas and the level of volcanic activity is less frequent than with other volcanoes around the Pacific Ocean, Canada is commonly thought to occupy a gap in the Pacific Ring of Fire between the volcanoes of western United States to the south and the Aleutian volcanoes of Alaska to the north. However, the mountainous landscape of Western and Northern Canada includes more than 100 volcanoes that have been active during the past two million years and have claimed many lives. Volcanic activity has been responsible for many of Canada's geological and geographical features and mineralization, including the ...