Cinder Cone

Formed at destructive plate margins where the lava is rich in silica, therefore the lava is stiff so steep sided volcanoes are produced. Eruptions are violent. A cinder cone has a steep conical shape and is made mostly of ash.

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image adapted from http://canada/canacad.ac.jp/groups/grade_8/mssciexemp/vol/volcanomelama/graphics/types.JPG