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20 oct 1963 año - Drummond Matthews and Frederick Vine, 1963 (TOPIC 5)

Descripción:

They were studying Earth's magnetic field and evidence came up that the poles have reversed many times. To add on, magnetic surveys nearby the mid-ocean ridges showed that the magnetic field could effect sea-floor spreading.

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20 oct 1963 año
Ahora mismo
~ 62 years ago