Convection occurs in the aesthenosphere. The aesthenosphere lies directly beneath the lithosphere at depths of between 62 and 124 miles.Know More
The aesthenosphere is a layer of solid rock that is so hot, the rock melts and flows like a liquid, easily breaking apart. The most dramatic earthquakes are caused by rocks in the aesthenosphere breaking apart.
Large convection currents transfer heat to the surface of the Earth, and these currents cause the magma to break apart. When this happens, it creates divergent plate boundaries. When the plates separate, they cool down and get reabsorbed back into the aesthenosphere.
Because the aesthenosphere is so deep, scientists cannot really study it until an earthquake or volcano occurs. They know that earthquakes change speed and direction when there is a change in the density of the rocks being affected. Rocks in the aesthenosphere rise up to the surface of the planet where there is evidence of tectonic plates separating.
Scientists cannot tell how deep the aesthensosphere goes. Some think it is a layer that delves around 434 miles into the Earth. Until better technology is built to help them study this layer, they have to study things like earthquakes, volcanoes and magma chambers in the world's oceans.Learn more in Layers of the Earth
Convection currents in Earth's mantle are caused by the rise of hot material rising towards the crust, becoming cooler and sinking back down. This process occurs repeatedly, causing the currents to constantly flow. The movement of the currents plays a factor in the movement of the mantle.Full Answer >
Convection occurs when a cold pot of water is placed on a stove burner that transfers heat to the bottom of the pan. As the water in the pan warms, it begins to bubble on the surface. Generally, convection transfers heat from a warm area to a cooler one.Full Answer >
The Earth's magnetosphere protects the planet from solar winds and high-energy particles by redirecting this energy around the planet. When charged particles approach the Earth, the magnetosphere affects them due to their magnetic properties. Particles blown by the solar wind simply sweep around the Earth, while slower radioactive particles may become part of the Earth's radiation belts, held safely above the surface by the magnetosphere.Full Answer >
As of April 26, 2013, a French research team has estimated the temperature of the Earth’s inner core at 10,800 degrees Fahrenheit. This is 1,800 degrees hotter than previous estimates. The newly hypothesized temperature approaches the measured surface temperature of the sun.Full Answer >