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September 30, 2021
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jan 1, 1929 - Arthur Holmes

Description:

Arthur's Theory is that the mantle goes under thermal convection. As magma is heated it tends to rise and then it cools and sinks again. At the time it received very little attention.

Added to timeline:

12 Nov 2017
0
0
220
Theory

Date:

jan 1, 1929
Now
~ 92 years ago
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