mar 6, 1929 - Arthur Holmes, 1929 (TOPIC 3)
Description:
Arthur Holmes came up with a theory about Mantle convection currents. He thought the movement of heated objects rising to the top of the mantle and then sinking once they cool would be enough movement to cause tectonic plates to move, resulting in the continents shifting places.SOURCE 3
Added to timeline:
Date:
mar 6, 1929
Now
~ 96 years ago