Ocean Floor Spreading and Magnetization


Objective: To illustrate an extensional transform fault and the reversing magnetizations of the ocean floor.

Materials needed:

Demonstration:

Place ocean floor spreading apparatus on top of overhead projector and turn on both machines. Start the ocean floor spreading by pushing the spreading switch to the left (pushing it to the right reverses the process). The dial on the apparatus controls the speed of the spreading. The alternating red and clear stripes represent the alternating magnetizations of the ocean floor rock.

Illustrated is the ocean floor spreading apparatus.