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Whose work first mapped the Mid-Atlantic Ridge in detail?

Earth ScienceCartography

Quick Answer

Marie Tharp was the key cartographer behind the detailed mapping of the Mid-Atlantic Ridge. Her work helped reveal the ridge’s rift valley and global extent.

The Full Story

Marie Tharp analyzed sonar data and helped draw the first detailed physiographic maps of the Mid-Atlantic Ridge. Her maps showed a long rift valley running through the ridge, a crucial clue that the seafloor was spreading apart. This was one of the most important visual pieces of evidence for plate tectonics. Today she is recognized as one of the pioneers of modern ocean-floor mapping.

Key Facts

1.Mid-Atlantic Ridge mapping advanced in the 1950s
2.The ridge includes a rift valley
3.Seafloor spreading was a key interpretation

YouTube Angle

Suggested video title for this topic:

"She drew the first real picture of the ocean floor—and changed geology."