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April 27, 2024 2522 0
Post-drift studies, including mapping of the ocean floor, revealed that oceanic rocks were notably younger than continental ones. Rocks adjacent to mid-oceanic ridge crests displayed striking similarities in composition and age. Arthur Holmes made a significant contribution in the 1930s with his convectional current theory, proposing that convection currents within the Earth’s mantle, driven by thermal variances from radioactive elements, play a crucial role. These findings set the stage for the emergence of the sea floor spreading theory.
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