Types+Of+Volcanoes


 * Types of Volcanoes **

There are three types of volcanoes, shield, cinder, and composite volcanoes. Shield volcanoes cover a wide area and have quiet eruptions. They are big on the bottom and have sloping sides. They throw off mafic lava that flows out slowly and when it hardens, it shapes like a cone.Hawaiian Islands formed from shield volcanoes. The other type of volcano is Cinder volcano. It has steep slopes, almost 40 degrees, more than a hundred meters high. They form explosive eruptions that throw out pyroplastic material. The last type of volcano is Composite volcano, made from different hardened lava layers. It can erupt quietly or explosively. When it’s a quiet eruption, lava flows and covers the sides. When it’s an explosive eruption, pyroplastic comes out and stay in the vent. Then lava flows out. This type of volcano is also known as stratovolcano. There is also another type of volcano called dome complexes. These volcanoes form on top of each other, and their lava is felsic, throwing of pyroplastic material.