Types of Volcanoes

In the world three types of Volcanoes exist. They are cinder cone, strato, and shield Volcanoes.


Cinder Cone Volcanoes- These volcanoes are made mostly of cinders, igneous rocks, and other particles that have been blown up by air. Cinder cone volcanoes can be formed by explosive eruptions. They also contain a narrow base and steep sides. The materials are usually loosely arranged and the cones are not high. A popular example of a cinder cone volcano is Paricutin in Mexico. These volcanoes are not as popular in Hawaii.
                                       
                                          


Composite/Strato Volcanoes - Composite/strato volcanoes are formed by violent eruptions, hurtling volcanic bombs, cinders, and ashes out of vents. They also build up alternating layers of rock particle and lava inside the volcano. The volcano also has quiet eruptions that follow and produce a lava that covers these rock particles. A great example of a composite/strato volcano is Mt. St.Helens in Washington. These volcanoes are also not as common in Hawaii.
                                                       
Shield Volcanoes- They are composed of quiet lava flows. The lava is runny and flows over a large area, the two types of lava flows are Aa&Pahoehoe. Aa is stony and rough, while Pahoehoe is smooth. There are also several quiet eruptions from gently slipping domed shaped mountains. An example in Mauna Loa, in Hawaii. Hawaii is mainly made of Shield Volcanoes only.