Convection currents.
The difference in temperature and density is the cause of convection currents in the earths mantle. Convection currents are the flow that transfers heat within a fluid.
The difference in temperature and density is the cause of convection currents in the earths mantle. Convection currents are the flow that transfers heat within a fluid.
convection
The difference in temperature and density is the cause of convection currents in the earths mantle. Convection currents are the flow that transfers heat within a fluid.
Convection is the movement caused within a fluid by "warm currents". The hotter fluid will rise, pushing the cooler fluid down, which then in turn gets heated, creating a continuous cycle.
Convection.
Convection is the process by which heat is transferred through the movement of air or fluid. In this case, heated air rises and cooler air sinks, creating air currents that transfer heat within a space.
mantle.
Convection
Convection currents are the moving currents of fluid that transfer heat. Heat is transferred through the fluid as warmer, less dense fluid rises and cooler, denser fluid sinks, creating a continuous circulation pattern that transfers heat throughout the fluid.
Convection currents occur in any fluid in which there is a temperature differance. Most convection currents occur in the mantle, the layer of semi-liquid rock below the crust. These currents are the reason behind plate tectonics.
The heat in the Earth's interior comes from two main sources: the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust and the primordial heat left over from the formation of the Earth.