Magnetic Stripes On The Sea Floor

The theory of plate tectonics states that the lithosphere which is the earth s outer layer is divided up into a dozens of irregularly shaped plates.

Magnetic stripes on the sea floor.

Why are the magnetic stripes on the sea floor parallel to and symmetrical across the mid ocean ridge. Evidence from drilling samples. Among the new findings was the discovery of zebra stripe like magnetic patterns for the rocks of the ocean floor. False the concept of seafloor spreading was supported by magnetic polarity stripes on the ocean floor.

Such magnetic patterns led to recognition of the occurrence of sea floor spreading and they remain some of the strongest evidence for the theory of plate tectonics. Magnetic stripes and isotopic clocks oceanographic exploration in the 1950s led to a much better understanding of the ocean floor. Plates have areas of activity called boundaries and these. The discovery of magnetic stripes on the seafloor in the 1950s validated the plate tectonics theory for the geological community.

The earth s magnetic field reverses in a regular pattern every few hundred thousand years. As it cools it becomes permanently magnetized in the direction of the earth s magnetic field. The theory of seafloor spreading. The continual process of seafloor spreading separated the stripes in an orderly.

Seafloor spreading is a geologic process where there is a gradual addition of new oceanic crust in the ocean floor through a volcanic activity while moving the older rocks away from the mid oceanic ridge. Magnetometers towed near the sea surface behind wordmark oneline. Interpreting diagrams how are these matching stripes evidence of sea floor spreading. The image shows the mid atlantic ridge a submarine volcanic mountain belt that is a key location in the process of.

Figure 17 magnetic stripes magnetic stripes in the rock of the ocean floor show the direction of earth s magnetic field at the time the rock hardened.