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Minerals Report - International Seabed Authority

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2 Physiography of the Ocean Floor and its Bearing on Non-Living<br />

Resources<br />

In order to apply the criteria defined by the 1982 United Nations<br />

Convention on the Law of the Sea, Article 76, to identify those areas of the<br />

global oceans that lie beyond 200 nautical miles of coastal baselines, it is<br />

necessary to consider the regional geology and physiography of the<br />

seafloor. This is essential before considering the potential for, and<br />

occurrence of, non-living resources forming in or on the deep seafloor.<br />

Figures 1 to 5 respectively are preliminary maps showing the age,<br />

physiography, tectonic boundaries, sub-division of basement types, and<br />

sediment thickness underlying the global oceans and their continental<br />

margins.<br />

INTERNATIONAL SEABED AUTHORITY 672

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