The hot vapors are then used to drive electric turbines. Conventional geothermal energy utilizes steam from natural sources such as geysers, or by drawing water from the hot, high-pressue depths of the Earth. Geothermal energy uses the heat trapped beneath the Earth’s surface to generate electricity. How can volcano become a source of electricity? The form of these volcanoes is flat to gently sloping and they can occupy an area from 100,000 to 1,000,000 square kilometers. These volcanoes produce a very fluid basaltic magma with horizontal flows. The least explosive type of volcano is called a basalt plateau. Which type of magma will produce the least explosive volcanic eruption? Pyroclastic material can make up over 50% of the volume of a stratovolcano.įor example, ash particles that fall from a high eruption cloud to form widespread layers downwind from a volcanic eruption are referred to as tephra and not as a pyroclastic flow deposit. Stratovolcanoes show inter-layering of lava flows and pyroclastic material, which is why they are sometimes called composite volcanoes. Which volcano is most likely to produce a pyroclastic flow? A common cause is when the column of lava, ash, and gases expelled from a volcano during an eruption loses its upward momentum and falls back to the ground. What type of lava creates a pyroclastic flow?Ī pyroclastic flow is a dense, fast-moving flow of solidified lava pieces, volcanic ash, and hot gases. 8 Which is the most dangerous part of a volcano?.

7 What is the speed of a pyroclastic flow?.6 What causes a pyroclastic flow to form in a volcano?.5 What type of volcano is least explosive?.4 How can volcano become a source of electricity?.3 Which type of magma will produce the least explosive volcanic eruption?.2 Which volcano is most likely to produce a pyroclastic flow?.1 What type of lava creates a pyroclastic flow?.

Pyroclastic flow types