Magnetic Patterns On The Ocean Floor Were Puzzling Because They

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

Magnetic patterns on the ocean floor were puzzling because they.

Magnetic patterns on the ocean floor were puzzling because they. Showed alternating bands of normal and reversed polarity wegener s hypothesis of continental drift was finally confirmed by. Shortly after the conclusion of world war ii sonar equipped vessels crisscrossed the oceans collecting ocean depth profiles of the seafloor beneath them. When the earth s magnetic field reverses a new stripe with the new polarity begins.

On a map of the ocean floor what do the magnetic patterns show. Showed altering bands on of normal and reversed polarity. Isacks had integrated this notion of seafloor spreading with that of drifting continents and formulated the basis of plate tectonic theory. Where where the youngest rocks on the sea floor.

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. The magnetic variation in successive bands of ocean floor parallel with mid ocean ridges is important evidence supporting the theory of. It provided evidence of sea floor spreading. Oliver and bryan l.

The figure below includes two images of the ocean floor. Why were magnetic patterns found on the ocean floor puzzling. By the late 1960s several american investigators among them jack e. Why does this support the theory of plate tectonics.

The ocean floor is thus pushed at right angles and in opposite directions away from the crests. The magnetic patterns were a mirror image of each side of the ridge. 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. One side is a striped ridge and the other side is the ridge.

Magnetic patterns on the ocean floor were puzzling because they. Magnetic patterns on the ocean floor were puzzling because they. They were able to sample sea floor rocks they were surprised to find the oldest were only about 160 million years old. Scientists claim that the ocean floor has magnetic patterns.

The survey data was used to create three dimensional relief maps of the ocean floor and by 1953 american oceanic cartographer marie tharp had created the first of several maps that revealed the presence of an underwater mountain range. And that the waves show the magnetic patterns of the sea floor and. The study paleomagnetism was key in proving wegener s hypothesis because. Magnetic patterns on the ocean floor were puzzling because they.