What is Convectional current theory?

Convectional Current Theory was given by Arthur Holmes in the 1930s. It discussed the possibility of convection currents operating in the mantle portion These currents are generated due to radioactive elements causing thermal differences in the mantle portion. Holmes argued that there exists a system of such currents in the entire mantle portion. This was an attempt to provide an explanation to the issue of force, on the basis of which contemporary scientists discarded the continental drift theory.

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