Richard Dixon Oldham
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Richard Dixon Oldham FRS 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 Chedrang fault cutting the bed of the Chedrang River. The fault face forms the right bank of the current watercourse, and part of the former bed of the river can be seen above the fault face.
Monument to George Inglis, Chatak, showing the upper part twisted with respect to the base.
Seismic wave
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A seismic wave is a mechanical wave of acoustic energy that travels through the Earth or another planetary body. It can result from an earthquake, volcanic eruption, magma movement, a large landslide,
Richard Dixon Oldham
…FRS (; 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. Born on 31 July 1858 to Thomas Oldham, a Fellow of the Royal Society and…
Body waves and surface waves