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Richard Dixon Oldham

British geologist

Died when: 77 years 350 days (935 months)
Star Sign: Leo

 

Richard Dixon Oldham

Richard Dixon Oldham FRS (/'o?ld?m/; 31 July 1858 – 15 July 1936) was a British geologist who made the first clear identification of the separate arrivals of P-waves, S-waves and surface waves on seismograms and the first clear evidence that the Earth has a central core.


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