where are composite volcanoes usually found
Composite volcanoes. Characteristics of a composite volcano. 1  Composite volcanoes are made up of alternating layers of lava and ash (other volcanoes just consist of lava). 2  They are usually found at destructive [destructive boundaries: The boundary of two plates which are moving towards each other. They are usually found at destructive [destructive boundaries: The boundary of two plates which are moving towards each other. ] 2  or compressional boundaries. 3  The eruptions from these volcanoes may be a pyroclastic flow rather than a lava flow.