What is the main factor that determines the type of volcano?

The style of eruption depends on a number of factors, including the magma chemistry and content, temperature, viscosity (how runny the magma is), volume and how much water and gas is in it, the presence of groundwater, and the plumbing of the volcano.

How do you identify types of volcanoes?

Individual volcanoes vary in the volcanic materials they produce, and this affects the size, shape, and structure of the volcano. There are three types of volcanoes: cinder cones (also called spatter cones), composite volcanoes (also called stratovolcanoes), and shield volcanoes.

What determines the type of volcano that forms quizlet?

The type of volcanic eruption is determined by the magma composition, magma temperature, and amount of dissolved gases.

What are the three factors that affect the shape of volcanic cone?

These include: The volume of volcanic products. The interval length between eruptions. The composition of volcanic products.

What is a cone in a volcano?

A volcanic cone is a triangle-shaped hill formed as material from volcanic eruptions piles up around the volcanic vent, or opening in Earth’s crust. Most volcanic cones have one volcanic crater, or central depression, at the top. They are probably the most familiar type of volcanic mountain.

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 primary factors determine the nature of volcanic eruptions choose all that apply quizlet?

what are the primary factors that determine the nature of volcanic eruptions? The magma’s composition, it’s temperature and the amount of dissolved gases it contains.

What primary factors determine whether a volcano erupts explosively or quietly?

The primary factors that determine whether a volcano erupts explosively or quietly include characteristics of the magma and the amount of dissolved gases in the magma. Viscosity is a substance’s resistance to flow. A vent is an opening to the Earth’s surface.

Why do volcanoes have different shapes?

Volcanoes have several shapes, which are controlled by the composition of the magma and the nature of its eruption. If a volcano produces very fluid lava (low in the compound SiO2, or silica), the magma flows a long distance before it cools, making a flat, shield-shaped volcano.

How is a volcanic cone formed?

They form when different types of eruptions deposit different materials around the sides of a volcano. Alternating eruptions of volcanic ash and lava cause layers to form. Over time these layers build up. The result is a cone that has a gentler slope than a cinder cone but is steeper than a shield volcano.

How are types of volcanoes related to types of volcanic eruptions?

What determines the nature of eruption?

Although there are several factors triggering a volcanic eruption, three predominate: the buoyancy of the magma, the pressure from the exsolved gases in the magma and the injection of a new batch of magma into an already filled magma chamber.

What determines the shape of a cone-shaped volcano?

It mostly depends on the types of material forming the cone. For example, volcanoes made up of very fluid basaltic lavas (hot, rich in Fe and Mg), will tend to form more depressed shapes, usually shield volcanoes (like Kilauea or the other Hawaiian volcanoes).

How do cinder cone volcanoes form?

Cinder cones form from ash and magma cinders–partly-burned, solid pieces of magma, that fall to the ground following a volcanic eruption. This type of eruption contains little lava, as the magma hardens and breaks into pieces during the explosion. As a result, cinder cone volcanoes tend to be smaller than other types of volcanoes.

Are volcanic cone volcanoes steep?

Volcanic cones can be steep or gently sloping depending on the type of eruption that forms them. The steepest cones form around cinder cone volcanos.

What are some examples of composite cone volcanoes?

Washington state’s Mt. St. Helens is an example of a composite cone volcano. A volcano is a feature of Earth’s crust that allows molten rock from beneath the crust to reach the surface. This gorgeous volcanic cone is Shishaldin, a volcano on Unimak Island, Alaska.