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That ridge, it was later discovered, extended through the major oceans of the world. It is now called the Mid-Ocean Ridge. In 1953, American physicists Maurice Ewing (1906-1974) and Bruce Heezen ...
New seismic images of the Lucky Strike slow-spreading segment of the Mid-Atlantic Ridge show thick lower crust at the center ...
In the mid-20th century, when people looked at a map of the world ... which occurs at the mid-ocean ridges that she was the ...