Types of volcanoes

Question 1

What are the different types of volcanoes

Answer 1

• Shield
• Composite (stratovolcano)
• Cinder (ash)
• Acid (dome)
• Caldera

Question 2

What is the shape and formation of a shield volcano give examples

Answer 2

effusive eruption
tall structure with gently sloping sides
eruptions tend to be frequent but not explosive
Lava travels far before solidifying
Occur at divergent plate margins
( Mauna loa, Hawaii)

Question 3

What is the shape and formation of a composite volcano give examples

Answer 3

Steep sloping sides
Lava travels slowly and solidifies quickly
Occur at converging plate margins
(Mt Fuji, Japan)

Question 4

What is the shape and formation of a Cinder volcano give examples

Answer 4

Gas forces lava into air where it breaks into smaller pieces
Fragments cool and fall as cinders
Short symmetrical cone with steep sides and crater at top
Often form on the sides of shield or composite volcanoes

Question 5

What is the shape and formation of an acid volcano give examples

Answer 5

Viscous (liquid like) acid lava erupts effusively
Doesn’t travel far before solidifying
(Lassen Peak, California)

Question 6

What is the shape and formation of a Caldera volcano give examples

Answer 6

Gases trapped in a magma chamber eventually causes an extremely explosive eruption
Upper part of volcano can be destroyed
(Yellowstone USA)

Question 7

What are Icelandic effusive eruptions

Answer 7

Lava flows freely from an open fissure

Question 8

What are Hawaiian effusive eruptions

Answer 8

Fluid lava flows from a vent some can be thrown into the ait from vent

Question 9

What are vesuvian explosive eruptions

Answer 9

Powerful blast of gas pushing ash into air, some lava flow

Question 10

What are vulcanian

Answer 10

Shot, relatively small, violent eruption of viscous lava