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प्रश्न
How are the convectional currents in the mantle initiated and maintained?
उत्तर
Arthur Holmes in 1930s 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. According to Holmes, 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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संबंधित प्रश्न
Who amongst the following was the first to consider the possibility of Europe, Africa and America having been located side by side.
Polar fleeing force relates to:
What were the forces suggested by Wegener for the movement of the continents?
What are the evidences in support of the continental drift theory?
What were the major post-drift discoveries that rejuvenated the interest of scientists in the study of distribution of oceans and continents?
