What Makes Earth's Magnetic Field Change Direction?
- Episode aired Mar 28, 2022
- 6m
From time to time Earth's magnetic field flips north to south. There's growing evidence that subduction caused by plate tectonics is involved. But since there are delays of a hundred million... Read allFrom time to time Earth's magnetic field flips north to south. There's growing evidence that subduction caused by plate tectonics is involved. But since there are delays of a hundred million years between periods with lots of subduction and periods with frequent magnetic field fl... Read allFrom time to time Earth's magnetic field flips north to south. There's growing evidence that subduction caused by plate tectonics is involved. But since there are delays of a hundred million years between periods with lots of subduction and periods with frequent magnetic field flips there are clearly some details missing in this mechanism.