New research analyzing pieces of the most ancient rocks on the planet adds some of the sharpest evidence yet that Earth’s crust was pushing and pulling in a manner similar to modern plate tectonics at least 3.25 billion years ago. The study also provides the earliest proof of when the planet’s magnetic north and south poles swapped places.
Click here for original story, Study offers new, sharper proof of early plate tectonics, flipping of geomagnetic poles
Source: Phys.org