Magnetic Surveys Of The Ocean Floor Reveal

Magnetic surveys of the ocean floors reveal a alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge.

Magnetic surveys of the ocean floor reveal.

C that reversed polarity is rare. Magnetic stripes and isotopic clocks oceanographic exploration in the 1950s led to a much better understanding of the ocean floor. Magnetic surveys of the ocean floor reveal. Seafloor is created at mid ocean ridges and destroyed at deep ocean trenches.

The concept of seafloor spreading states that. B thin oceanic crust composed of basaltic rocks. Alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge. D all of the above.

Magnetic surveys of the ocean floor reveal. The concept of seafloor spreading states that. Magnetic surveys of the ocean floor reveal. The magnetic variation in successive bands of ocean floor parallel with mid ocean ridges is important evidence supporting the theory of.

In a reconstruction of earth s geologic past the continents of africa and south america fit best along the. In geophysics a magnetic anomaly is a local variation in the earth s magnetic field resulting from variations in the chemistry or magnetism of the rocks. Seafloor is created at mid ocean ridges and destroyed at deep ocean trenches. Mapping of variation over an area is valuable in detecting structures obscured by overlying material.

Among the new findings was the discovery of zebra stripe like magnetic patterns for the rocks of the ocean floor. These patterns were unlike any seen for continental rocks. Plate tectonics states that.