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Wodejebato Guyot

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description Wodejebato Guyot Overview

Wodejebato Guyot is a flat-topped submarine volcanic mountain in the central Pacific Ocean, within the Marshall Islands region. It formed as a volcanic island and later supported carbonate platforms and reefs before subsiding below sea level, while erosion and marine deposition helped produce its level summit. Scientific drilling recovered Cretaceous volcanic and shallow-water carbonate material, making the guyot useful for studying Pacific volcanism, subsidence and ancient reef environments.

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What is Wodejebato Guyot?

Wodejebato Guyot is a flat-topped submarine volcanic mountain, or guyot, in the Marshall Islands region of the Pacific. Its flat top records a former shallow-water surface that later sank below sea level. [Ocean Drilling Program](https://www-odp.tamu.edu/sciops/Leg_Summaries/Legs_141-158/Leg143_144.html)

How did Wodejebato become a guyot?

It began as a volcanic island or seamount, then supported carbonate platforms and reef-related deposits as the crust subsided. Erosion flattened the top, and continued subsidence eventually drowned the platform during the Late Cretaceous.

When did Wodejebato's carbonate platform drown?

Ocean Drilling Program work places the drowning of the later platform around 67 to 68 million years ago, near the end of the Cretaceous. That date makes Wodejebato useful for studying reef growth, subsidence, and changing Pacific environments. [ODP scientific results](https://www-odp.tamu.edu/publications/144_SR/VOLUME/CHAPTERS/sr144_52.pdf)

What is the connection between Wodejebato Guyot and Pikinni Atoll?

They form part of a Marshall Islands guyot and atoll study area drilled during Ocean Drilling Program Leg 144, including Site 869 on the sediment apron. Wodejebato is the ancient submerged platform, while Pikinni is a modern atoll reference in the same regional system.

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