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Cinder Cones build up when tephra erupts from a vent and falls back to earth around the vent. The accumulated tephra, which are cinders, forms a cone-shaped mountain. Paricutin, in western Mexico is well known for its cinder cone. It began in 1943, when a crack opened in the ground of a cornfield. When the eruptions ended in 1952, the top of the cone had grown to 1,345 feet (410 meters) above its abase.

2006-11-05 07:09:26 · answer #1 · answered by Nancy S 6 · 0 0

Cinder cones are the most common type of volcano on the surface of the Earth! The average cinder cone is about 800 m wide and 150 m high and erupted for 30 days. Cinder cones occur in nearly every western state.

2006-11-05 07:06:11 · answer #2 · answered by KEiKo 3 · 0 0

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