What type of volcano is formed from explosive eruptions of ash dust and rock?

What type of volcano is formed from explosive eruptions of ash dust and rock?

Stratovolcanoes
Stratovolcanoes (Composite Volcanoes) The stratovolcanoes are made up of layers of lava flows interlayed with sand- or gravel-like volcanic rock called cinders or volcanic ash. These volcano land formations are typically 10-20 miles across and up to 10,000 or more feet tall.

What is created when eruptions of lava alternate with explosive eruptions of ash cinder and bombs?

Lava flows alternate with explosive eruptions of ash, cinder, & bombs result in composite volcanoes. These are tall, cone-shaped mountains in which layers of lava alternate with layers of ash.

What type of volcano will most likely form when an eruption takes place with explosive force and layers of ash accumulate?

Composite volcanoes are tall, steep cones that produce explosive eruptions. Shield volcanoes form very large, gently sloped mounds from effusive eruptions.

What is an explosive volcano that shoots ash and lava into the air?

Cinder Cone Cinder cones are the simplest type of volcano. They are made of small pieces of solid lava, called cinder, that are erupted from a vent. The ground shakes as magmarises from within the Earth. Then, a powerful blast throws molten rocks, ash, and gas into the air.

What are mountains formed from the build up of volcanic lava often take this shape?

The above mentioned mountains are also called as volcanic mountains. It is because as the volcano erupts it discharges lava which flows down. When the larva cools it leads to the formation of mountain like structure in a cone shape. So that this mountains are called volcanic lava.

What type of volcano is Fire mountain?

Mount Merapi, Gunung Merapi (literally Fire Mountain in Indonesian and Javanese), is an active stratovolcano located on the border between the province of Central Java and the Special Region of Yogyakarta, Indonesia. It is the most active volcano in Indonesia and has erupted regularly since 1548.

What type of volcano will most likely form when an eruption takes place?

What type of volcano will most likely form when an eruption takes place with explosive force and layers of ash accumulate? Composite volcanoes are tall, steep cones that produce explosive eruptions. Shield volcanoes form very large, gently sloped mounds from effusive eruptions.

What are volcanic mountains?

Volcanic mountains are a special class of mountains. A volcano is a vent or opening through which magma, ash, gases, and water vapour are ejected out. Volcanic mountains consist of – Magma chamber, Vent, Lava, Crater, and pyroclastic flow. Volcanic soil or the soil around a volcanic mountain is very fertile.

Why do volcanoes form at divergent and convergent boundaries?

If two tectonic plates collide, they form a convergent plate boundary. The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary. When two plates are moving away from each other, we call this a divergent plate boundary.

What causes explosive volcanic eruptions?

A volcano’s explosiveness depends on the composition of the magma (molten rock) and how readily gas can escape from it. As magma rises and pressure is released, gas bubbles (mainly of water vapor and carbon dioxide) form and expand rapidly, causing explosions.

How are the tallest volcanoes in the world formed?

Most of the tallest volcanoes are composite volcanoes, which are also called stratovolcanoes. These form a cycle of quiet eruptions of fluid lava followed by explosive eruptions of viscous lava. The fluid lava creates an erosion resistant shell over the explosive debris, which forms, strong, steep-sided volcanic cones.

What makes a volcano an effusive or non explosive eruption?

Effusive or Non explosive eruptions are favored by low gas content and low viscosity magmas (basaltic to andesitic magmas). If the viscosity is low, non-explosive eruptions usually begin with fire fountains due to release of dissolved gases.

Why do some volcanoes have gentler slopes than others?

The gentler slopes near the base are due to accumulations of material eroded from the volcano and to the accumulation of pyroclastic material. Stratovolcanoes show inter-layering of lava flows and pyroclastic material, which is why they are sometimes called composite volcanoes.

How are volcanoes formed and how are they formed?

Volcanoes: Types, Formation, Elements. A volcano is a vent in the earth from which molten rock and gas erupt. The molten rock that erupts from the volcano forms a hill or mountain around the vent. The lava may flow out as a viscous liquid or it may explode from the vent as solid or liquid particles.