jun 24, 1962 - Harry Hess, 1962 (TOPIC 4)
Description:
Hess thought that the rising magma in the mantle pushed up the ocean crust, replacing it with new crust, and pushing the old crust away from the mid-ocean ridge until it sinks back into the mantle.SOURCE 5
Added to timeline:
Date:
jun 24, 1962
Now
~ 63 years ago