Arthur Holmes and the Age of the Earth
On January 14, 1890, British geologist Arthur Holmes was born. Holmes pioneered the use of radiometric dating of minerals and was the first earth scientist to grasp the mechanical and thermal implications of mantle convection, which led eventually to the acceptance of plate tectonics. “There are few problems more fascinating than those that are bound up with the bold question: How old is the Earth? With insatiable curiosity men have been trying…
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