1 jun 1961 año - Robert S. Dietz-1961
Harry Hess-1962
Seafloor Spreading.
Descripción:
Over millions and millions of years, the seafloor of our planet spreads apart by sinking and rising, causing earthquakes causing a shallow mid-ocean ridge.
Britanica.com
Nationalgeographic.org
Añadido al timeline:
fecha:
1 jun 1961 año
Ahora mismo
~ 63 years ago
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