Magnetic Surveys Of The Ocean Floor Reveal

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. Magnetic surveys of the ocean floor reveal.

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Mapping of variation over an area is valuable in detecting structures obscured by overlying material.

Magnetic surveys of the ocean floor reveal.

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 floors reveal a alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge. Plate tectonics states that. Alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge.

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

Alternating stripes of normal and reversed polarity paralleling the mid atlantic ridge. Among the new findings was the discovery of zebra stripe like magnetic patterns for the rocks of the ocean floor. Seafloor is created at mid ocean ridges and destroyed at deep ocean trenches. Magnetic surveys of the ocean floor reveal.

B thin oceanic crust composed of basaltic rocks. Magnetic surveys of the ocean floor reveal. These patterns were unlike any seen for continental rocks. Newly formed mineral grains on the ocean floor are magnetized according to the new orientation of the magnetic field.

Seafloor is created at mid ocean ridges and destroyed at deep ocean trenches. D all of the above. C that reversed polarity is rare.

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