description William Maurice Ewing Overview
William Maurice Ewing (1906-1974) was an American geophysicist and oceanographer whose research helped establish modern marine geophysics. He founded Columbia University's Lamont Geological Observatory, now Lamont-Doherty Earth Observatory, and developed the use of seismic methods to investigate the ocean floor and Earth's crust. Those methods used the behavior of waves to examine structures that could not be observed directly. His research covered submarine topography and deep-ocean sediments, including work on the Mid-Atlantic Ridge.
These investigations connected observations at sea with wider questions about Earth's structure and contributed evidence relevant to later plate-tectonic research. Ewing suits readers interested in the development of ocean science or the relationship between instruments and geological knowledge. His defining contribution was to make the oceans a major field of geophysical investigation rather than a gap in the study of Earth's solid structure.
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What was William Maurice Ewing's role at Lamont Geological Observatory?
Ewing was the first director of Columbia University's Lamont Geological Observatory, serving from its founding in 1949 until 1972. The institution later became the Lamont-Doherty Earth Observatory.
How did William Maurice Ewing study the ocean floor?
He combined seismic reflection and refraction, gravity measurements, magnetic observations, heat-flow studies, and sediment sampling. Those methods helped scientists understand ocean basins and the structure of features such as the Mid-Atlantic Ridge.
How many oceanographic expeditions did Maurice Ewing lead?
Biographical records credit Ewing with leading more than 50 expeditions to explore the ocean floor. He also helped develop tools such as deep-sea cameras and piston corers for gathering evidence from the seabed.
Why is Maurice Ewing important to modern oceanography?
Ewing helped turn deep-ocean geology into an instrument-based global science rather than a subject studied mainly from coastal observations. His Lamont work connected seismology, marine geology, and geophysics during the period when plate tectonics was taking shape.
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