Science & Environment

Ancient rocks reveal when Earth's tectonic engine 'switched on'

Source: Phys.org - latest science and technology news stories · Published

Ancient rocks reveal when Earth's tectonic engine 'switched on'
Source: Phys.org - latest science and technology news stories

Scientists have identified a major turning point in Earth's geological history, when the processes shaping the planet's crust changed dramatically and began to resemble the plate tectonics we see today—about 2.5 billion years ago.

Scientists have identified a major turning point in Earth's geological history, when the processes shaping the planet's crust changed dramatically and began to resemble the plate tectonics we see today—about 2.5 billion years ago.

Read Original Source