The Earth’s mantle is composed of hot, dense rock overlying the hotter, less-dense asthenosphere. When you have regions with different densities it creates an effect where denser rocks sinking through the mantle while lower-density materials rise up to the surface. These materials eventually cool and sink to become the oceans which causes water to be lost from the earth’s crust. The currents are called ‘convection currents.’
How do convection currents help form underwater mountains?
Underwater mountains are formed by the Earth’s convection currents. Convection is the process of heat transfer by the movement of fluids. The Earth’s convection currents are driven by heat from the Earth’s core. The hot fluid rises and cooler fluid sinks, causing a current to flow. This process happens slowly over millions of years. The constant movement of the fluid causes the mountain to slowly grow taller.
What are the advantages of convection currents?
The advantage of convection currents is that they help to circulate the earth’s mantle. This helps to keep the earth’s interior cool and prevents the buildup of heat in the lower mantle and core. Additionally, convection currents help to drive plate tectonics and the formation of underwater mountains.
What are the dangers of convection currents?
The dangers of convection currents are many and varied. They can cause havoc on the Earth’s surface, as well as in the oceans and atmosphere. Convection currents can cause tsunamis, earthquakes, landslides, wildfires, and tornadoes. They can also disrupt transportation and communication systems, and cause power outages. In addition, convection currents can exacerbate drought conditions and contribute to air pollution.
The Earth’s convection currents play a big role in underwater mountain formation. The way these currents work is by constantly moving the Earth’s mantle, which is the layer of rock below the crust. As the mantle moves, it pushes and pulls on the lithosphere (the Earth’s crust), which can cause cracks to form. When these cracks fill with magma, they create underwater mountains. So, without convection currents, we would not have some of the most interesting features on our planet!