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Free Content Magnetization of Atlantic Seamounts

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Abstract:

It is possible to infer the direction of magnetization in a seamount from its shape and the associated magnetic anomaly. Such a direction is equivalent to a paleomagnetic direction established by the standard methods of measuring the direction of magnetization of oriented rock samples. The result of applying this analysis to some seamounts in the Gulf of Guinea is described. By calculating the paleomagnetic pole position from the direction of magnetization in the seamounts, and comparing it with African paleomagnetic pole positions, it is shown that the concept of plate tectonics is obeyed, in that there seems to have been no relative motion between Africa and the Gulf of Guinea since the latter was formed during the opening of the Atlantic Ocean. Likewise, previously published paleomagnetic results from the Kelvin group of seamounts agree with North American paleomagnetic results.

Document Type: Research Article

Publication date: 1970-09-01

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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