In the mid-20th century, when people looked at a map of the world, they saw the familiar continents surrounded by vast, featureless oceans. Beneath the waves, the ocean floor was largely unknown ...

A map of the Atlantic Ocean floor. NASA Earth Observatory map by Joshua Stevens, using data from Sandwell, D. et al. (2014). 2023-08-25T03:08:03Z ...

The vast stretch of ocean between the Americas and Europe may be about to close soon—on a geological timescale. Just before the continents begin to drift back together, an "Atlantic ring of fire ...

WHILE the interest attaching to Sir William Dawson's Presidential address at Birmingham is still fresh, I wish to be allowed to offer a few observations on that part of it which deals with the ...

THE Atlantic is the best test case for the theory of the permanence of the ocean basins. According to one view, the Atlantic trough is a primeval geographic feature and dates back to the pre ...

In the 1950s, geologist Marie Tharp turned depth measurements into detailed maps of the ocean floor. It led to her discovery of the Mid-Atlantic rift.

The Atlantic Ocean may begin to shrink, said a new study published in the journal Geology. Oceans are not necessarily a permanent fixture on Earth, as they are able to appear and close due to the ...

Tharp worked at the Lamont Geological Observatory after receiving her master’s degree in 1944. While at the observatory, she met Bruce Heezen, who is the namesake of USNS Bruce C. Heezen (T-AGS-64).