Note
Studied by 1729 peopleNoteStudied by 8 peopleNoteStudied by 16 peopleNoteStudied by 4 peopleNoteStudied by 94 peopleNoteStudied by 9 people
VOLCANO 9
Lesson 1: Volcano
Volcano
It is a vent through molten rock and gas escape from the magma chamber.
Volcano in the Philippines
The Philippines is located in the Pacific Ring of Fire, where volcanoes are commonly found.
Parts of the Outer Volcano
Parts of the Inner Volcano
Classification of Volcano
The classification of the volcano is based on its structure and activity.
How is Magma Formed Inside the Earth?
It is formed when the Earth’s pressure increases, the melting temperature increases.
It is formed when rocks reach 800°C to 1200°C.
Composition of Magma
It is composite fluid materials with solid minerals.
Viscosity
It is the property of material’s resistance to flow.
Factors that Affects Viscosity in Magma
1. Temperature
Higher Temperature = Lower Viscosity
2. Composition
High Silica Content = Higher Viscosity
3. Amount of Dissolved Gas
High Dissolved Gas = Higher Viscosity
Types of Magma
1. Basaltic Magma
2. Andesitic Magma
3. Rhyolitic Magma
Types of Volcanic Eruption
Types of Volcanic Material
NoteStudied by 1729 peopleNoteStudied by 8 peopleNoteStudied by 16 peopleNoteStudied by 4 peopleNoteStudied by 94 peopleNoteStudied by 9 people