§4.3 Mount Aso volcano part 1

• Aardrijkskunde
• Middelbare school
• havo, vwo
• Leerjaar 1

§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

Photo

Beschrijving van de openingsfoto

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

Where is the volcano?

The volcanoes of Japan

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?

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 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 up to and including 8

Finished?

Effects of a volcanic eruption

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