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Flashcards in Diamonds and Volcanoes Deck (9):
1

What is a volcano?

A volcano is a rupture) on the crust) of a planetary mass object, such as the Earth, which allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.

2

Where are volcanoes typically found?

Earth's volcanoes occur because the planet's crust is broken into 17 major, rigid tectonic plates that float on a hotter, softer layer in the Earth's mantle. Therefore, on Earth, volcanoes are generally found where tectonic plates are diverging or converging.

3

What is an erupting volcano?

An erupting volcano is an active volcano that is having an eruption...

4

What is a dormant volcano?

A dormant volcano is an active volcano that is not erupting, but supposed to erupt again.

5

What is an extinct volcano?

An extinct volcano has not had an eruption for at least 10,000 years and is not expected to erupt again in a comparable time scale of the future.

6

How do diamonds get to the surface of the earth?

Volcanoes - that's how. When volcanoes erupt, sometimes diamonds are thrown out of the top in the lava or are left in pipe, the central, vertical part of the volcano.

7

What is kimberlite?

The best place to find diamonds is in the center of an extinct volcano, in a type of rock called kimberlite.

8

Where does the word volcano derived from?

"Vulcano" a volcanic island in Italy.

9

Where are the two Lamproite deposits

Argyle in Australia and Udachnaya in Russia.