Composite volcanoes are made up of layers of volcanic flows and pyroclastic debris that alternate. Lava flows cover the slopes during calm eruptions, and pyroclastic material is spread around the outlet during explosive eruptions. ALSO KNOWN AS STRATOVOLCANO.Composite cones are huge volcanoes (tens of thousands of feet or meters tall) that are typically made up of lava flows, pyroclastic deposits, mudflow (lahar) deposits, and lava structures. Composite volcanoes are active for extended spans of time (tens to hundreds of thousands of years) and explode on a regular basis.
Volcanic products that create volcanoes and leave enduring imprints on the environment include lava flows with varying viscosity and gas content, as well as tephra with sizes ranging from less than a millimeter to chunks weighing many tonnes.Individual volcanoes generate different volcanic materials, which effects the size, form, and structure of the volcano.Volcanoes are classified into three types: cinder cones (also known as spatter cones), composite volcanoes (also known as stratovolcanoes), and shield volcanoes. depicts the variations in size and form between these volcanoes.