The East Pacific Rise—part of the globe-spanning, mid-ocean-ridge volcanic mountain chain—has two tectonic plates splitting ...

The newly discovered vents are located on the East Pacific Rise (EPR) near 10°N latitude, a part of the globe-spanning mid-ocean ridge volcanic mountain chain, where two tectonic plates are ...

Longest mountain range, running through the Atlantic Ocean, separating the Eurasian and North American plates in the north, ...

Marie Tharp, studying echo soundings, discovers that the Mid-Atlantic ... to form new ocean crust, a process he calls seafloor spreading. Lava mound on the East Pacific Rise.