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15 Questions

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Different Types of Volcanoes

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Questions and Answers

What is the main characteristic of Shield volcanoes?

Low-explosivity and mostly lava flows (correct)

Reaching heights up to 2500 m

Rhyolite composition

High explosivity

What distinguishes Cinder Cone volcanoes from Composite Cone volcanoes?

They are formed of layers of ash, lava, and rock fragments

They are up to 2500 m in height

They have high silica content

They erupt multiple times (correct)

Which type of volcano is described as typically non-explosive?

Composite Cone Volcanoes

Shield Volcanoes

Cinder Cone Volcanoes

Lava Domes (correct)

Why are Composite cone volcanoes also called stratovolcanoes?

For containing layers of ash, lava, and rock fragments Signup and view all the answers

What is the main characteristic that differentiates Composite cone volcanoes from Lava Domes?

Formation by eruption of different materials on a slope Signup and view all the answers

What is the main reason why shield cone volcanoes have less explosive eruptions than composite volcanoes?

They are made almost entirely of fluid lava flows Signup and view all the answers

Which type of lava is typically found in shield cone volcanoes due to its low viscosity and more fluid nature?

Basalt Signup and view all the answers

What is a pyroclastic flow composed of in a composite cone volcano?

Ash, rock fragments, and hot gases Signup and view all the answers

What geological feature is common to both Mount Saint Helens and Mount Vesuvius?

Central crater Signup and view all the answers

What distinguishes a shield cone volcano from a composite cone volcano based on their physical appearance?

Gentle slopes and wide base Signup and view all the answers

Which of the following statements about cinder cone volcanoes is true?

Their eruptions are relatively weak and often last for several years. Signup and view all the answers

What is the primary process by which cinder cone volcanoes are formed?

Explosive eruptions that launch lava into the air, which cools and falls back as cinders. Signup and view all the answers

Which of the following is true regarding the composition of lava in cinder cone volcanoes?

They are typically composed of basalts or andesites. Signup and view all the answers

Which of the following is an example of a lava dome volcano?

Lassen Peak Signup and view all the answers

What is a key characteristic of lava dome volcanoes?

They are formed by viscous lavas that cannot flow far from the vent. Signup and view all the answers