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Arthur Holmes-The mantle undergoes thermal convection. The basalt in the mantle heats up then goes down under than back up to the surface. When the magma cools the result is stripes on the ocean floor. (21 fev 1929 ano – 9 nov 1929 ano)
Adicionado na linha do tempo:
12 jan 2018
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419
Sophie Dixon
Data:
21 fev 1929 ano
9 nov 1929 ano
~ 8 months