Rock layers

Draw a volcano using colors

How many phases of a volcano eruption exist ?

• 3

• 1

• 2

• 4

How do the phases occur ?

• 1. The top of the volcan exploded and a mushroom cloud is formed.

  2. Avalanche of hot gas and rocks flow down to the volcano

• 1. The lava is forming inside the volcano

  2. The volcano exploded

  3. People died

• 1. The volcano exploded

  2. Lava all over the cities

• 1. The volcano prepared the pyroclastic flow

  2. When all the lava is ready, it's expulsed quickly

Draw here the 2 phases

Why one phase is called Plinian phase ?

The rock where every sediment and mineral is originated is called

Explain the process of sedimentation

What is the process of diagenesis ?

• when the rocks go to the sea r ocean

• the chemicals and sediments going to the groundwater

• the process of forming rock from buried sediment

• when the water and wind make sediment settle

What is cementation ?

• Deep layers of sediment

• When rocks formed from buried sediment

• Cement particles collected from the volcano

• Chemicals deep down in the groundwater

Draw the 4 processes mentioned before