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Flashcards in 8A Deck (12):
1

Our English word volcano comes from _________ Island in the Mediterranean Sea

Volcano

2

Volcanos are made from __________ rocks

Igneous

3

Igneous in geology refers to anything having to do with __________ earth materials

Molten

4

What kind of igneous structure is a volcano?

Extrusive

5

Once magma erupts from the _________, it becomes ________.

Crater, lava

6

All types of magma contain _______.

Silica

7

Name 3 types of magma

1. Basaltic-forms basalt rocks
2. Andesitic- usually dark
3. Rhyolitic- lighter in color

8

________ are vents in the ground where steam and other gases escape

Fumaroles

9

When volcanos emit solid material like ash or cinder, this material is called ________ material.

Pyroclastic

10

Why are there many volcanos near tectonic plates?

Because subduction creates lots of magma

11

What are the main volcano belts in the world?

1-Alpine Himalayan
2. Circum-Pacific

12

A _______ is a depositional mountain landform built from solidified magma from deep in the earth.

Volcano