Cinder Cones

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Questions and Answers

What are the four main types of volcanoes mentioned in the text?

Composite cone volcanoes, shield cone volcanoes, cinder cone volcanoes, and lava dome volcanoes.

What causes composite cone volcanoes to have steep slopes?

Their more explosive eruption style and more felsic, viscous lavas.

What are volcanoes?

Volcanoes are openings or vents in the Earth's crust that can eject lava, rock fragments, and hot vapor and gases.

What are the characteristics used to differentiate the four main types of volcanoes?

Size, composition, and explosive style. Signup and view all the answers

What are the three main types of volcanoes mentioned in the text?

Composite cone volcanoes, shield cone volcanoes, and cinder cones. Signup and view all the answers

What are composite cone volcanoes made of?

Layers of ash, lava, and rock fragments. Signup and view all the answers

What is the difference between composite cone volcanoes and shield cone volcanoes?

Composite cone volcanoes have steep slopes and explosive eruptions, while shield cone volcanoes have gentle slopes and less explosive eruptions. Signup and view all the answers

What are some examples of famous composite cone volcanoes?

Mount Saint Helens, Mount Rainier, and Mount Vesuvius. Signup and view all the answers

What are composite volcanoes composed of?

Composite volcanoes are composed of alternating layers of hardened lava, volcanic ash, and rock fragments. Signup and view all the answers

How are shield volcanoes described?

Shield volcanoes are broad, domed-shaped volcanoes with long, gently sloped sides. Signup and view all the answers

Why do shield volcanoes tend to flatten out?

Shield volcanoes tend to flatten out due to the composition of the lava that flows from them, which is very fluid. Signup and view all the answers

What are cinder cone volcanoes built from?

Cinder cone volcanoes are built from lava fragments called 'cinders' or 'scoria'. Signup and view all the answers

What are composite volcanoes composed of?

Composite volcanoes are composed of alternating layers of hardened lava, volcanic ash, and rock fragments. Signup and view all the answers

What is the shape of shield volcanoes?

Shield volcanoes are broad, domed-shaped volcanoes with long, gently sloped sides. Signup and view all the answers

Why do shield volcanoes tend to flatten out?

Shield volcanoes tend to flatten out due to the composition of the lava that flows from them, which is very fluid and spreads out in all directions but cannot pile up in steep mounds. Signup and view all the answers

What are cinder cone volcanoes built from?

Cinder cone volcanoes are built from lava fragments called 'cinders' or 'scoria,' which are glassy volcanic fragments that explode from the volcano and cool quickly. Signup and view all the answers