Abstract
It is proposed that a geophysical study be carried out of a strip about 250 miles wide stretching between Grand Banks of Newfoundland and the Galicia Bank off Spain. The primary objective would be to demonstrate that there is a two-sided symmetry about the axis of the Mid-Atlantic Ridge in the physical properties (e.g. remanent magnetization) and dimensions of the geological formations underlying the ocean floor. If this symmetry can be demonstrated to exist in the North Atlantic Ocean then the case for ocean-floor spreading (and presumably continental drift) will be greatly strengthened.
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