§4.3 Mount Aso volcano part 1

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§4.3 Mount Aso volcano part 1

Program

• Short recap section 2
• Start section 3: Mount Aso volcano
• work work
• The end
  

1

2

3

4

5

The quake caused a wave

In shallow water, the waves are slowed down, they become higher

Undersea earthquake

The water arrives at the beach with high force

In deep water, waves can go 800km/hour

What does the red dot indicate

1. Epicenter
2. Hypocenter

Which scale you think caused that damage?

1. 3-4
2. 4-5
3. 5-6
4. 6-7

Reading

Read 'Subducting plates' and 'Caldeira'

Write down any words you don't understand.

And answer these questions: -> write down your answers!

1) How are all volcanoes in Japan formed?

2) What type of volcano is the Aso?

3) How was this type of volcano formed?

Finished? -> Work on assignments 4.2 1,2,3,5,6(alone), 8 + 9

4.3 assignments 1,2,3,4,6,7,8, 9

Photo

Beschrijving van de openingsfoto

Het ingerichte landschap in de caldeira van de vulkaan de Aso.

Where is the volcano?

The volcanoes of Japan

Subduction

Note:

• Plate movements cause not only earthquakes but also volcanoes
• The heavier oceanic plate dives beneath the continental plate
• The plate starts to melt and creates a volcano

Write down what you see

Most famous type of volcano

Aso volcano is an ancient volcano with kilometers wide hangover, the caldeira.
    This caldeira can be created by a powerful volcanic eruption.

Types of volcanoes

Before a caldeira forms, it is a volcano of the type:

1. Shield vocano
2. Crevice volcano
3. Stratovolcano
4. Track volcano

Three types of volcanoes

Read G103

Write down the 6! characteristics of the first type of volcano: A Stratovolcano

Strato volcano

• plate movement: subduction
• explosive (eruption)
• magma thick and viscous
• steep slope
• volcanic bombs
• pyroclastic flow (glow cloud)

Caldera volcano

• formed from stratovolcanoes with large magma chamber
• After eruption, the roof of the deflated magma chamber collapses
• A crater lake and (1 or more ) new crater(s) form in the old crater

Shield volcano

• Plate movement: divergence
• Non-explosive
• magma is thin and fluid

    gentle slope

Homework

 Do 4.3 assignments 1,2,3,4,6,7,8, 9 -> Homework for Thursday 19-12

Finished?

- Study for test next week!

Effects of a volcanic eruption

• Lava and ash
• Volcanic bombs
• steam
• Toxic gas clouds
• Earthquakes 
• Pyroclastic flows or a lahar