How does convection effect molten rock?

How does convection effect molten rock?

Hot magma fueled by mantle convection bubbles up to fill these fractures and spills onto the crust. This bubbled-up magma is cooled by frigid seawater to form igneous rock. This rock (basalt) becomes a new part of Earth’s crust.

What is convection currents in the molten rocks?

Convection currents, that occur within the molten rock in the mantle, act like a conveyor belt for the plates. Tectonic plates move in different directions. The friction between the convection current and the crust causes the tectonic plate to move. The liquid rock then sinks back towards the core as it cools.

How do convection currents work with igneous rocks?

Igneous rocks form from the cooling of magma or lava. At diverging plate boundaries, convection currents bring hot magma to the surface. This hot magma flows out onto the ocean floor, forming extrusive, finely grained igneous rocks. When it cools, it creates igneous rock formations, such as dikes and batholiths.

How do convection currents work to cycle material?

The Mechanism of Convection When the elements that make up the mantle are subjected to pressure they create heat, which drives convection. Convection is how dense material in the Earth’s core sinks while lighter material rises.

How do convection currents make volcanoes to erupt?

Convection current movements create a push and pull effect, creating the volcanic trenches, which are formed when two plates collide. If the magma continues to rise towards the surface of the gap, the formation of another volcano may take place.

How does convection currents affect the plates?

The convection currents move the plates. Where convection currents diverge near the Earth’s crust, plates move apart. Where convection currents converge, plates move towards each other. The movement of the plates, and the activity inside the Earth, is called plate tectonics .

How does convection work inside the Earth?

Heat rising and falling inside the mantle creates convection currents generated by radioactive decay in the core. The convection currents move the plates. Where convection currents diverge near the Earth’s crust, plates move apart. Where convection currents converge, plates move towards each other.

How does convection affect Earth’s atmosphere?

How does convection affect the weather? Convection within the atmosphere can often be observed in our weather. Stronger convection can result in much larger clouds developing as the air rises higher before it is cooled, sometimes producing Cumulonimbus clouds and even thunderstorms.

How does convection work in the rock cycle?

At diverging plate boundaries, convection currents bring hot magma to the surface. This hot magma flows out onto the ocean floor, forming extrusive, finely grained igneous rocks. Eventually, the crust melts and rises to the surface causing a volcanic eruption, creating igneous rocks.

How does the convection current work?

Convection currents form because a heated fluid expands, becoming less dense. As it rises, it pulls cooler fluid down to replace it. This fluid in turn is heated, rises and pulls down more cool fluid. This cycle establishes a circular current that stops only when heat is evenly distributed throughout the fluid.