New seismic images of the Lucky Strike slow-spreading segment of the Mid-Atlantic Ridge show thick lower crust at the center ...

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 ...

Among this landscape, the Ninetyeast Ridge is one of the most impressive features. It stretches over 5,000 kilometers ... forming new bits of crust, as seen at mid-ocean ridges. In other areas, called ...