Seafloor Spreading
THE OCEAN FLOOR IS GROWING-
drilling samples, magnetic strips, molten material hardening and forming crust
THE OCEAN FLOOR IS GROWING-
drilling samples, magnetic strips, molten material hardening and forming crust
- Harry Hess proposed idea
- Magnetic Stripes- bands of rock lined on magnetic north pole.when it switches, the stripes of the rock also change
- magnetic poles switch causing iron in rocks to change directions occurs about every 1/2 million years
left nail is normal.....right nail altered by magnet