It allows sovereignty of nations to be extended to near the base of the continental slope. The modern scientific definition of a continent has four criteria: Elevation (water depth) geology of the ...

This discovery, together with data from a 1964 research vessel, transformed the field of geology. It confirmed sea-floor spreading as hypothesized by Hess, and thus "continental drift," originally ...

Plate tectonics is geology’s Theory of Everything ... It also explained why continents drift over the planet’s surface and thus, from time to time, come together to form an all-embracing ...