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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.
Composite volcanoes, also known as stratovolcanoes, are long-lived, relatively large, tall, conical-shaped mountains with steep sides. These volcanic landforms are made of interlayered solidified lava and pyroclasts.
Composite cones are large volcanoes (many thousands of feet or meters tall) generally composed of lava flows, pyroclastic deposits, and mudflow (lahar) deposits, as well as lava domes. Composite volcanoes are active over long periods (tens to hundreds of thousands of years), and erupt periodically. Composite volcanoes are also called ...
What Is a Stratovolcano or Composite Volcano? A stratovolcano or composite volcano is a large, steep-sided volcano that consists of multiple layers of hardened lava, tephra, pumice, and volcanic ash. These volcanoes have a conical shape and produce periodic, often explosive eruptions.
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many alternating layers of hardened lava and tephra. [1] Unlike shield volcanoes , stratovolcanoes are characterized by a steep profile with a summit crater and explosive eruptions. [ 2 ]
There are two main types of volcano - composite and shield. The two types of volcano form in different places and have very different characteristics.
A composite volcano, also known as a stratovolcano is a cone-shaped volcano built from several layers of lava, pumice, ash, and tephra. Due to its viscous lava, a composite volcano tends to form tall peaks rather than rounded cones.
Because these layers are deposited in uneven overlapping concentrations rather than in neat strata, many scientists prefer the term composite volcano. This unevenness of deposition allows for the development of several vents from which gas and magma can escape.
Composite Volcanoes (Stratovolcanoes) Composite volcanoes or stratovolcanoes have the classic “volcano” shape. They are tall, symmetrical cones. Stratovolcanoes form by the accumulation of different types of volcanic materials, including lava, ash, and rock. Their eruptions can be violent.
Composite volcanoes typically feature andesitic, dacitic and rhyolitic lava. This lava is relatively cool and thick, enabling it to trap large amounts of gas. Composite volcanoes have a low magma supply rate, resulting in infrequent eruptions.