1) Begins with close-up showing mid-ocean ridge topography with magma chamber below
2) magma rises and new ocean plate spreads away from ridge
1) Begins with close-up of mid-ocean ridge showing normal and reverse stripes
2) magma rises, and stripes move away from ridge. Good companion for ridge topography version
1) Begins with close-up of mid-ocean ridge with topography
2) normal and reverse magnetic stripes appear
3) arrows appear showing which stripes are normal, then arrows show which stripes are reversed.
