Table of Contents
What do volcanoes all have in common?
All erupting volcanoes release gases, tephra (material fragments) and heat. Lava flows from stratovolcanoes and shield volcanoes typically damage property. Volcanic eruptions, especially from violent cones or stratovolcanoes, can create damaging debris avalanches, landslides, tsunamis and earthquakes.
Why do all lava flows not look the same?
Why do all lava flows not look the same? Lava flows depend on the type of volcano from which they are erupting for their characteristics.
What are the similarities between volcanoes and mountains?
Mountains and Volcanoes are somewhat similar but the major factor that makes them different is their formation. A mountain is formed due to various geological processes like movement and opposition of tectonic plates but a volcano is formed around a vent that allows magma to reach the surface of the earth.
Are there any volcanoes that are the same?
Are All Volcanoes The Same? No, there are different types of volcanoes. The nature of a volcano depends on how viscous, or sticky, the magma is. This depends on its temperature and the amount of silica (a mineral) it contains.If the silica content is low, the lava flows out gently, forming a shallow shield-shaped cone.
How are composite volcanoes different from regular volcanoes?
Lava with a very high silica content erupts slowly to form a dome, usually within an existing crater.Composite volcanoes cause the most dangerous, highly explosive, eruptions. These are volcanoes with alternate layers of rock and lava.
How are volcanoes formed and where do they erupt?
Sometimes, though, plates collide with one another or pull apart, and it’s at these active zones where volcanoes form. Volcanoes may also erupt in areas called hot spots where the crust is thin. Volcanoes erupt in different ways, producing different landforms. Steep, cone-shaped volcanoes form when plates collide.
What do you need to know about volcanoes?
11 Facts About Volcanoes 1 A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. 2 In an eruption, gases and rock shoot up through the opening and spill over or fill the air with lava fragments. 3 The danger area around a volcano covers about a 20-mile radius.