Kōkō Seamount

is an underwater volcano (seamount) of the Hawaiian–Emperor seamount chain in the Pacific Ocean.Tarduno, John A. et al.  "The Emperor Seamounts: southward motion of the Hawaiian hotspot plume in Earth's mantle," Science, 22 August 2003, pp. 1064-1069 DOI:10.1126/science.1086442; retrieved 2012-6-14.  Kōkō is an extinct volcano.Monterey Bay Aquarium Research Institute,  "Life-cycle of Hawaiian hot spot volcanoes" ; retrieved 2012-6-14.  

The seamount is also known as the "Kōkō Guyot"' because it has a flat top.Guyots are flat-topped because they were once above sea level, and were worn down by the sea.  This undersea geologic feature is also called a "guyot" or "tablemount".Geographic.org, "Kōkō Guyot"; retrieved 2012-6-10.

This seabed mountain is named after Emperor Kōkō of Japan."Shipboard Scientific Party, 2002. Site 1206," in Tarduno, J.A., Duncan, R.A., Scholl, D.W., et al., Proc. ODP, Init. Repts.{Proceedings of the Ocean Drilling Program, Initial Reports), 197: College Station, TX (Ocean Drilling Program), 1–117. [doi:10.2973/odp.proc.ir.197.106.2002]; retrieved 2012-6-10.

The last eruption from Kōkō seamount was 48 million years ago.VolcanoLive.com, "Kōkō Seamount"; retrieved 2012-6-10.  The north side of Kōkō Seamount was formed at least 52.6 million years ago; and the south side of Kōkō is dated at 50.4 million years ago.TenBruggencate, Jan (2006).  "Hawaiian geology gets update," Honolulu Advertiser (US). September 4, 2006; retrieved 2012-6-10.

Related pages
 Submarine volcano
 Active volcano
 Dormant volcano

References

Other websites
 Seamount Biogeosciences Network,  database

Category:Seamounts
Category:Pacific Ocean
Category:Volcanoes of Oceania