TYPES OF VOLCANO Flashcards
How can volcanoes be classified?
According to their activity and shape.
Also called scoria cones and is the most common volcanic landform in the world
Cinder Cone Volcano
Steep, conical hill formed above a vent with a big crater
Cinder Cone Volcano
Built from ejected lava fragments called “cinders”
Cinder Cone Volcano
Rarely exceeds 250m in height and 500m in diameter
Cinder Cone Volcano
Paricutin volcano is an example of what type of volcano
Cinder Cone Volcano
Formed by accumulation of lava that oozes out of the volcano
Shield Cone Volcano
Since non viscous lava can flow freely, a broad, slightly domed structure that resembles a warrior’s shield is formed.
Shield Cone Volcano
Larger than cinder volcanoes
Shield Cone Volcano
Mauna loa volcano in Hawaii is an example of what type of volcano
Shield Cone Volcano
Stratovolcanoes is another name for ___
Composite Cone Volcano
Large nearly perfectly sloped structure formed from alternate solidification of both lava and pyroclastic deposits
Composite Cone Volcano
Tall, symmetrical, has steep sides, sometimes rising up to 10,000 feet high
Composite Cone Volcano
Mt. Mayon is an example of what type of volcano
Composite Cone Volcano
What are the 3 volcanoes classified by the shapes
1) Cinder Cone Volcano/ scoria cones
2) Shield Cone Volcano
3) Composite Cone Volcano/ Stratovolcanoes
HAS erupted within the last 10,000 years and in the past
ACTIVE VOLCANOES
Has NOT erupted within the last 10,000 years
INACTIVE VOLCANOES
These are volcanoes that has erupted but is now quiet and inactive
( geologists think that these volcanoes are still capable of erupting)
DORMANT VOLCANOES
NO records of their activity
EXTINCT VOLCANOES
What are the 4 volcanoes classified by the activity
- ACTIVE VOLCANOES
- INACTIVE VOLCANOES
- DORMANT VOLCANOES
- EXTINCT VOLCANOES
Paricutin in Mexico
Cinder Cone Volcano
Taal in Philippines
Cinder Cone Volcano
It forms when it breaks into small fragments, solidifies around the vent
Cinder Cone Volcano
What type of lava does Cinder Cone Volcano have?
Basaltic/Mafic
100-400 meters tall
Cinder Cone Volcano
Composite cone volcanoes have smaller __ and therefore taller ___
crater, ash fall
Lava type is Rhyolitic
Composite Cone Volcano
Mt Mayon, Philippines
Composite Cone Volcano
Mt Fujiyama, Japan
Composite Cone Volcano
What type of lava does Shield Cone Volcano have?
Basaltic/Mafic
Eruptions are extremely explosive and dangerous
composite Cone Volcano
It can have a cluster (many) of vents
composite Cone Volcano
(Low-viscosity) __/___ -rich basalts are the most fluid of the common lava types
iron, magnesium
Kanloan, Philippines
Composite Cone Volcano
Huge, gently sloped volcanoes
Shield cone volcano
Built by many layers of low-viscous lava flows
Shield cone volcano
as high as 9,000 meters
Shield cone volcano
Kilauea, Hawaii
Shield cone volcano
Diamond head, Hawaii
Shield cone volcano
Lava domes are also referred to as __
Volcanic/lava dome
formed when lava is too viscous in a composite volcano
Volcanic/lava dome
Lava Dome’s height depends on ___
dimensions of the composite cone volcano its on
crater of Mt St Helens
Volcanic/lava dome
Lassen Peak
Volcanic/lava dome
Chaiten crater
Volcanic/lava dome