Walter Clarkson Pitman III (21 October 1931 – 1 October 2019) was an American geophysicist and a professor emeritus at Columbia University.[1] His measurements of magnetic anomalies on the ocean floor supported the Morley–Vine–Matthews hypothesis explaining seafloor spreading. With William Ryan, he developed the Black Sea deluge theory. Among his major awards are the Alexander Agassiz Medal and the Vetlesen Prize.
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