Give brief description abotbdifferent types of volcanoes
Answers
Answer:
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
Answer:
Geologists generally group volcanoes into four main kinds--cinder cones, composite volcanoes, shield volcanoes, and lava domes.
Explanation:
• Cinder Cone Volcanoes - Cinder cones are the simplest type of volcano. They are built from particles and blobs of congealed lava ejected from a single vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone.
• Composite Volcanoes - A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. ... The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity.
• Shield Volcanoes - A shield volcano is a wide volcano with shallowly-sloping sides. ... Consequently, a volcanic mountain having a broad profile is built up over time by flow after flow of relatively fluid basaltic lava issuing from vents or fissures on the surface of the volcano. Many of the largest volcanoes on Earth are shield volcanoes.
• Lava Dome Volcanoes - Volcanic dome, also called Lava Dome, any steep-sided mound that is formed when lava reaching the Earth's surface is so viscous that it cannot flow away readily and accumulates around the vent. ... Volcanic domes may develop in the summit craters of volcanoes or completely away from any crater.