Types of Volcanoes

There are three main types of volcano - composite or strato, shield and dome. Composite volcanoes, sometimes known as strato volcanoes, are steep sided cones formed from layers of ash and [lava] flows. The eruptions from these volcanoes may be a pyroclastic flow rather than a flow of lava.

1. Types of volcanoes By : Anthony Villanueva’12

2. VOLCANOES A  volcano   i s a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments .

3. TYPES OF VOLCANOES When magma erupts at the surface it can form different types of volcanoes depending on the viscosity, or stickiness, of the magma, the amount of gas in the magma, and the way in which the magma reached the surface .

4. Composite volcano Composite volcanoes  are constructed from multiple  eruptions , sometimes recurring over hundreds of thousands of years, sometimes over a few hundred.  Andesite  magma, the most common but not the only magma type forming composite cones, produces lava more brittle than  basaltic lava  because of its higher viscosity. Although andesitic composite cones are constructed dominantly of fragmental debris, some of the magma intrudes the cones as  dike  or sills

5. CINDER CONE VOLCANOES Cinder cones  are mounds of  basaltic   scoria  that forms by streaming gases that carry  lava  blobs and ribbons into the atmosphere to form lava fountains. The lava blobs commonly solidify during flight through the air before landing on the ground. If gas pressure drops, the final stage of building a cinder cone may be a lava flow that breaks through the base of the cone. If there is abundant water in the environment, magma interacts with water to build a  maar  volcano rather than a cinder cone. 

6. SHIELD VOLCANO Shield volcanoes  are large volcanic forms with broad summit areas and low-sloping sides (shield shape) because the extruded products are mainly low viscosity  basaltic  lava flows. A good example of a shield volcano is the Island of Hawaii (the "Big Island"). The Big Island is formed of five coalesced volcanoes of successively younger ages, the older ones apparently  extinct .

7. http://www.cotf.edu/ete/modules/volcanoes/vtypesvolcan1.html Website :

8. Hebrews 13:16 “And do not forget to do good and to share with others, for with such sacrifices God is pleased .”

9. God bless