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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. (feb 21, 1929 – nov 9, 1929)
Added to timeline:
12 Jan 2018
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Sophie Dixon
Date:
feb 21, 1929
nov 9, 1929
~ 8 months