What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

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Transcript of What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

Page 1: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.
Page 2: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

What is a Volcano?

• Definition• Lava• Magma 1. Low-silica 2. High-silica

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Page 3: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

Volcanic Eruptions• Quiet eruption 1. Low gas 2. Lava flows

Page 4: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

Volcanic Eruptions (cont.)• Explosive eruption 1. High gas 2. Tephra 3. Particle size

Page 5: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

Types of Volcanoes• Shield volcanoes 1. Low-silica 2. Lava flows 3. Description

Page 6: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

Types of Volcanoes (cont.)• Cinder cone volcanoes 1. Low-silica/high gas 2. Fire fountains 3. Tephra 4. Description

Page 7: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

Types of Volcanoes (cont.)• Composite volcanoes 1. High-silica 2. Lava flows/tephra 3. Description

Page 8: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.
Page 9: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

Volcano Locations• Divergent boundaries 1. Rifts 2. Low-silica 3. Mid-ocean ridge

Surtsey

Page 10: What is a Volcano? Definition Lava Magma 1. Low-silica 2. High-silica.

Volcano Locations (cont.)• Convergent boundaries 1. Subduction zones 2. High-silica 3. Ring of Fire


Volcanoes. 1.This magma is slow moving and causes violent eruptions. 2.This lava is formed from mafic magma & is smooth. 3.This lava is formed from felsic.

Volcanoes. 1.This magma is slow moving and causes violent eruptions. 2.This lava is formed from mafic magma & is smooth. 3.This lava is formed from felsic.

Unit 5 The power of nature. volcanoes Magma chamber lava crater eruption.

Unit 5 The power of nature. volcanoes Magma chamber lava crater eruption.

Volcanoes. 7.1 Volcanoes and Plate Tectonics Magma – hot liquid rock Volcanism – movement of magma toward suface Lava – magma on the surface Vent.

Volcanoes. 7.1 Volcanoes and Plate Tectonics Magma – hot liquid rock Volcanism – movement of magma toward suface Lava – magma on the surface Vent.

Ch 3 Review Volcanoes & Extrusives. What’s the difference between magma and lava?

Ch 3 Review Volcanoes & Extrusives. What’s the difference between magma and lava?

Volcanoes Some Key Terms. Plate Tectonics Separating ASH CRATER LAVA SIDE VENT CRUST MAGMA CHAMBER.

Volcanoes Some Key Terms. Plate Tectonics Separating ASH CRATER LAVA SIDE VENT CRUST MAGMA CHAMBER.

VOLCANOES. VOCABULARY Minerals – An inorganic solid with a specific chemical composition Magma – Liquid or molten rock under ground Lava – Magma that.

VOLCANOES. VOCABULARY Minerals – An inorganic solid with a specific chemical composition Magma – Liquid or molten rock under ground Lava – Magma that.

Topic: Igneous Rocks. Igneous Rocks - Lava – Lava – Magma – Magma –

Topic: Igneous Rocks. Igneous Rocks - Lava – Lava – Magma – Magma –

Volcanic Landforms 6 th Grade. 2 Kinds of Volcanic Eruptions Quiet Eruptions: – If magma is low in silica – Lava is low in viscosity and flows easily.

Volcanic Landforms 6 th Grade. 2 Kinds of Volcanic Eruptions Quiet Eruptions: – If magma is low in silica – Lava is low in viscosity and flows easily.

Classification based upon formation. Igneous rocks form from molten lava. What’s the difference between magma and lava? The formation of igneous rocks.

Classification based upon formation. Igneous rocks form from molten lava. What’s the difference between magma and lava? The formation of igneous rocks.

Volcanoes. Lava Lava: Molten rock outside the earth Magma: Molten rock inside the earth Types of Lava – Aa Rough and Stone Like Looks like angular rocks.

Volcanoes. Lava Lava: Molten rock outside the earth Magma: Molten rock inside the earth Types of Lava – Aa Rough and Stone Like Looks like angular rocks.

Section 6.1 Vocabulary to know: Volcano Quiet eruptions Explosive eruptions Crater Central vent Dike Lava Pipe Magma chamber Magma Aa Pahoehoe Pillow lava.

Section 6.1 Vocabulary to know: Volcano Quiet eruptions Explosive eruptions Crater Central vent Dike Lava Pipe Magma chamber Magma Aa Pahoehoe Pillow lava.

VOLCANOES!. Factors Affecting Eruptions Magma temperature Hotter flows easier… Magma viscosity – determined by temp and composition. High silica = high.

VOLCANOES!. Factors Affecting Eruptions Magma temperature Hotter flows easier… Magma viscosity – determined by temp and composition. High silica = high.

(volcano) (Volcan) Volcano (magma) (lava) d L6du m (shield ...

(volcano) (Volcan) Volcano (magma) (lava) d L6du m (shield ...

Chapter 6. magma- melted rock below Earth’s surface; called lava at the surface.

Chapter 6. magma- melted rock below Earth’s surface; called lava at the surface.

1. Magma and Solutions 2. Lava and water 3. Lava and magma 4. Solutions and Saltrations.

1. Magma and Solutions 2. Lava and water 3. Lava and magma 4. Solutions and Saltrations.

Volcanoes. 7.2 Volcanic Eruptions Types of Lava Mafic Lava: rich in magnesium and iron – Forms much of the oceanic crust Felsic Lava: rich in silica (less.

Volcanoes. 7.2 Volcanic Eruptions Types of Lava Mafic Lava: rich in magnesium and iron – Forms much of the oceanic crust Felsic Lava: rich in silica (less.

Formation of Magma and Igneous Rocks Basalt lava flow - Hawaii.

Formation of Magma and Igneous Rocks Basalt lava flow - Hawaii.

Hawaii Kilauea Low viscosity lava - Western Oregon University › ~brownk › ES104 › ES104.2008.1117.Volcanoes.9.pdf · 1 VOLCANOES Tectonics of Magma • Basaltic magma – From

Hawaii Kilauea Low viscosity lava - Western Oregon University › ~brownk › ES104 › ES104.2008.1117.Volcanoes.9.pdf · 1 VOLCANOES Tectonics of Magma • Basaltic magma – From

IGNEOUS ROCKS form when magma/lava cools and solidifies.

IGNEOUS ROCKS form when magma/lava cools and solidifies.

A Method for Magma Viscosity Assessment by Lava Dome ...

A Method for Magma Viscosity Assessment by Lava Dome ...