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Subsea Minerals in Pacific Island EEZs

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Subsea minerals have been sampled in the EEZs of many Pacific Nations, indicating that deep-sea mining industries may be possible in many different states.

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Nodule composition in the CCZ versus Cook Islands

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Both the Clarion-Clipperton Zone and the Cook Islands EEZ contain polymetallic nodules that appear superficially similar. However, there are differences in composition between the two zones that critically impact project economics.

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How polymetallic sulphide deposits form

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Polymetallic sulphide deposits form at hydrothermal vent sites, and are rich sources of metals such as copper, zinc, gold and silver.

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How polymetallic nodules form

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Polymetallic nodules are small spheroidal "rocks" that form over millions on years on the deep seabed. They consist of large amounts of precious metals, and present a compelling prospect for sea bed mining.

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How cobalt-rich crusts form

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Cobalt-Rich Crusts are formed by metal minerals precipitating out of seawater to form crusts.

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