The scientists sent bouncing sound waves deep inside the ground to form seismic ... eastern Pacific Scientists said that there is an ocean ridge on the other side of that plate beneath Easter ...

Close to the summit of an underwater mountain west of the Mid-Atlantic Ridge, a jagged landscape of towers rises ... Field is ...

Marie Tharp, studying echo soundings, discovers that the Mid-Atlantic Ridge conceals a long rift valley, which turns out to be part of a hidden volcanic rent that girds the global deep.

I write about the ocean, climate change ... The Salas y Gómez and Nazca Ridges are deep-sea mountain ranges with multiple volcanoes that extend nearly 1,870 miles and are home to numerous ...