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Geology of parts of the central and eastern Clarion Clipperton Zone

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  • John Parianos
  • Anthony O’Sullivan
  • Pedro Madureira

Abstract

The Clarion Clipperton Zone (CCZ) hosts the most valuable deposit of polymetallic nodules yet discovered. International Seabed Authority exploration contractors, such as Tonga Offshore Mining Limited, Nauru Ocean Resources Incorporated and Marawa Research and Exploration Limited, routinely conduct ship-based 12 kHz multibeam echosounder surveys over all or parts of their exploration contract areas. This is often supported by physical seabed samples, side-scan sonar, sub-bottom profile sonar and seabed photographs. Geological maps for seven discrete mapped areas are presented. Basaltic abyssal plains of mid-Eocene to early Miocene age are overlain by 75–100 m of mid-Eocene and younger deep-sea chalks of the Marquesas Oceanic Formation. In turn, the chalk is overlain by up to 27 m of early Miocene to present, often mobile, siliceous clay-ooze sediment of the Clipperton Oceanic Formation. This stratigraphy is crosscut by a very wide variety of mostly volcanic magmatic rock units.

Suggested Citation

  • John Parianos & Anthony O’Sullivan & Pedro Madureira, 2022. "Geology of parts of the central and eastern Clarion Clipperton Zone," Journal of Maps, Taylor & Francis Journals, vol. 18(2), pages 232-245, December.
    • Handle: RePEc:taf:tjomxx:v:18:y:2022:i:2:p:232-245
    DOI: 10.1080/17445647.2022.2035267
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