what type of volcano would you find along a convergent boundary

Examples of composite volcanoes include Mount St. Helens, Mount Rainer, Mount Shasta, Mount Hood, and Mount Pinatubo. Sometimes composite volcanoes and other violent volcanoes can erupt so violently that they sometimes collapse in on themselves or actually blow themselves up to produce calderas.

How composite volcanoes are formed?

Composite cone volcanoes are also called stratovolcanoes. 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.

Why are volcanic eruptions at convergent plate boundaries typically more explosive than those at divergent plate boundaries?

Volcanic eruptions are more violent at converging boundaries than at divergent boundaries. … Convergent plate margin eruptions are more violent because the magma is more viscous from lower temperatures and it has more volatiles (mostly water).

Which of the following occurs at convergent plate boundaries?

At convergent plate boundaries, oceanic crust is often forced down into the mantle where it begins to melt. Magma rises into and through the other plate, solidifying into granite, the rock that makes up the continents. Thus, at convergent boundaries, continental crust is created and oceanic crust is destroyed.

Which type of volcano is most closely associated with hotspots?

Most hotspot volcanoes are basaltic (e.g., Hawaii, Tahiti). As a result, they are less explosive than subduction zone volcanoes, in which water is trapped under the overriding plate. Where hotspots occur in continental regions, basaltic magma rises through the continental crust, which melts to form rhyolites.

What types of volcanoes form at hotspots?

As hotspot material rises, the pressure drops so the hotspot begins to melt producing magma. In an oceanic hotspot environment, for example Hawaii, dark, silica-poor basalt magma is produced. The runny basalt forms broad sloping shield volcanoes (Fig. 6).

What type of convergence produces volcanic island arcs?

When two oceanic plates collide against each other, the older and therefore heavier of the two subducts beneath the other, initiating volcanic activity in a manner similar to that which occurs at an oceanic-continental convergent plate boundary and forming a volcanic island arc.

What is an example of an intraplate volcano?

Intraplate Activity in the Oceans

The Hawaiian Islands are a beautiful example of a hotspot chain in the Pacific Ocean. Kilauea volcano lies above the Hawaiian hotspot. Mauna Loa volcano is older than Kilauea and is still erupting, but at a slower rate. … Loihi, the youngest volcano, is still below the sea surface.

What is an intraplate volcano what causes their formation?

Intraplate volcanoes are caused by hot spots inside a tectonic plate and far from the edges.

What are the types of volcanic eruptions?

Types of eruptions

Hydrothermal eruption. An eruption driven by the heat in a hydrothermal systems. …
Phreatic eruption. An eruption driven by the heat from magma interacting with water. …
Phreatomagmatic eruption. …
Lava. …
Strombolian and Hawaiian eruptions. …
Vulcanian eruptions. …
Subplinian and Plinian eruptions.

Which of the following volcanoes are closely associated with convergent plate boundaries and subduction zones?

Stratovolcanoes tend to form at subduction zones, or convergent plate margins, where an oceanic plate slides beneath a continental plate and contributes to the rise of magma to the surface.

Why are volcanic chains associated with convergent boundaries quizlet?

Why are volcanic chains associated with convergent boundaries? Partial melting occurs due to subduction. **Partial melting is triggered by water loss in the plate. This melts mantle material, which rises to the surface.

How do volcanoes form at destructive plate boundaries?

At a destructive plate boundary (also called convergent boundaries) two plates move towards another. One plate is then pushed underneath the other. … The plate then melts, due to friction, to become molten rock (magma). The magma then forces its way up to the side of the plate boundary to form a volcano.

What type of plate must be involved during convergence for a volcanic activity to occur?

A subducting plate creates volcanoes. Locations with converging in which at least one plate is oceanic at the boundary have volcanoes.

How do earthquakes happen at convergent plate boundaries?

Convergent plate boundaries

The plates move towards one another and this movement can cause earthquakes. As the plates collide, the oceanic plate is forced beneath the continental plate. This is known as subduction. This happens because the oceanic plate is denser (heavier) than the continental plate.

What processes occur along each type of plate boundaries?

There are three main types of plate boundaries:

Convergent boundaries: where two plates are colliding. Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust. …
Divergent boundaries – where two plates are moving apart. …
Transform boundaries – where plates slide passed each other.

Which is the best example of a convergent plate boundary?

Answer: The Washington-Oregon coastline of the United States is an example of this type of convergent plate boundary. Here the Juan de Fuca oceanic plate is subducting beneath the westward-moving North American continental plate. The Cascade Mountain Range is a line of volcanoes above the melting oceanic plate.

What is formed in convergent plate boundary?

Convergent boundaries are boundaries where two plates are pushing into each other. They are formed when two plates collide, either crumpling up and forming mountains or pushing one of the plates under the other and back into the mantle to melt.