Camp Hill (British Columbia)
Camp Hill is a cinder cone in northern British Columbia, Canada. It is thought to have last erupted in the Holocene period. See also *List of volcanoes in Canada *List of Northern Cordilleran volcanoes *Volcanism of Canada *Volcanism of Western Canada References * Cinder cones of British Columbia Holocene volcanoes Monogenetic cinder cones Mount Edziza volcanic complex {{BritishColumbiaInterior-geo-stub ...
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Cinder Cone
A cinder cone (or scoria cone) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been built around a volcanic vent. The pyroclastic fragments are formed by explosive eruptions or lava fountains from a single, typically cylindrical, vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as either cinders, clinkers, or scoria around the vent to form a cone that often is symmetrical; with slopes between 30 and 40°; and a nearly circular ground plan. Most cinder cones have a bowl-shaped crater at the summit. Mechanics of eruption Cinder cones range in size from tens to hundreds of meters tall and often have a bowl-shaped crater at the summit. They are composed of loose pyroclastic material (cinder or scoria), which distinguishes them from ''spatter cones'', which are composed of agglomerated volcanic bombs. The pyroclastic material making up a cinder ...
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