Tag Archives: Continents

1.5 billion-year-old Earth had water everywhere, but not one continent, study suggests

by Mindy Weisberger, Space.com

Chemicals in rocks hinted at a world without continents.

What did Earth look like 3.2 billion years ago? New evidence suggests the planet was covered by a vast ocean and had no continents at all.

Continue reading 1.5 billion-year-old Earth had water everywhere, but not one continent, study suggests

How continents were recycled

by Ruhr-Universitaet-Bochum, Geology Page

Researchers from Germany and Switzerland have used computer simulations to analyse how plate tectonics have evolved on Earth over the last three billion years. They show that tectonic processes have changed in the course of the time, and demonstrate how those changes contributed to the formation and destruction of continents. The model reconstructs how present-day continents, oceans and the atmosphere may have evolved.

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