How Earth's continents became twisted and contorted over millions of years
- Written by Dietmar Müller, Professor of Geophysics, University of Sydney
Photographed on Kangaroo Island, this rock – called a ‘zebra schist’ – deformed from flat-lying marine sediments through being stressed by a continental collision over 500 million years agoDietmar Muller, CC BYClassical plate tectonic theory was developed in the 1960s.
It proposed that the outer layer of our planet is made...





