Rock from 120ft Dorset cliffs on the Jurassic Coast collapses onto beach below after being battered by Storm Herminia.

Rivers began pumping weathered material into the sea about a billion years after Earth formed, suggesting continents may have gotten an early start.

But our new research has shown the key to cracking this code lies in geologically young rocks laid down on the seafloor of the Pacific Ocean off the coast of New Zealand. This has opened up a new ...