What type of volcanic mountain is composed of layers of lava that alternate with layers?

What type of volcanic mountain is composed of layers of lava that alternate with layers?

stratovolcanoes
Some of the Earth’s grandest mountains are composite volcanoes–sometimes called stratovolcanoes. They are typically steep-sided, symmetrical cones of large dimension built of alternating layers of lava flows, volcanic ash, cinders, blocks, and bombs and may rise as much as 8,000 feet above their bases.

Which type of volcano is composed of layers of lava ash and rock debris?

Composite cone volcanoes
Composite cone volcanoes, which are also called ‘stratovolcanoes’ or simply ‘composite volcanoes,’ are cone-shaped volcanoes composed of layers of lava, ash and rock debris.

Which type of volcano builds up with layers of lava rock and ash like a layer cake )?

stratovolcano
Composite Volcano – Also known as a stratovolcano, is a conical volcano built up by many layers (strata) of hardened lava, tephra, pumice, and volcanic ash.

What are the types of volcanic mountains?

Volcanoes are grouped into four types:

• Cinder cones.
• Composite volcanoes.
• Shield volcanoes.
• Lava volcanoes.

What are the three types of volcanic mountains?

There are three main types of volcano – composite or strato, shield and dome. Composite volcanoes, sometimes known as strato volcanoes, are steep sided cones formed from layers of ash and [lava] flows. The eruptions from these volcanoes may be a pyroclastic flow rather than a flow of lava.

What layers make up a composite volcano?

Key Takeaways: Composite Volcano Composite volcanoes, also called stratovolcanoes, are cone-shaped volcanoes built from many layers of lava, pumice, ash, and tephra. Because they are built of layers of viscous material, rather than fluid lava, composite volcanoes tend to form tall peaks rather than rounded cones.

What type of volcanoes form from wide in layers of lava?

Stratovolcanoes are also called composite volcanoes because they are built of layers of alternating lava flow, ash and blocks of unmelted stone, according to the U.S. Geological Survey.

Which type of volcano is characterized by tall cone shaped mountains in which layers of lava alternate with layers of ash?

A stratovolcano is a tall, conical volcano composed of one layer of hardened lava, tephra, and volcanic ash. These volcanoes are characterized by a steep profile and periodic, explosive eruptions. The lava that flows from them is highly viscous, and cools and hardens before spreading very far.

What are the different types of volcanic eruption how do they differ?

There are two types of eruptions in terms of activity, explosive eruptions and effusive eruptions. Explosive eruptions are characterized by gas-driven explosions that propels magma and tephra. Effusive eruptions, meanwhile, are characterized by the outpouring of lava without significant explosive eruption.

What are the different types of volcanoes made of?

These types of volcanoes are tall conical mountains composed of lava flows and other ejecta in alternate layers, the strata that give rise to the name. Composite volcanoes are made of cinders, ash, and lava.

What is a composite or strato volcano?

Answer. Composite or strato volcanoes are made of alternating layers of ash and lava. These form the tallest of volcanoes.

What are the characteristics of a lava volcano?

They are built by slow eruptions of highly viscous lava. They are sometimes formed within the crater of a previous volcanic eruption. Like a composite volcano, they can produce violent, explosive eruptions, but their lava generally does not flow far from the originating vent.

How are cinder cone volcanoes formed?

Cinder cones may form as flank vents on larger volcanoes, or occur on their own. Composite volcanoes are steep-sided volcanoes composed of many layers of volcanic rocks, usually made from high-viscosity lava, ash and rock debris.