Yuryaku Seamount
Yuryaku Seamount (also called Yuryaku Guyot) is a seamount (underwater volcano) and guyot (flat-topped) located a southwest of Hawaii. It is located a little southwest of the V-shaped bend separating the Emperor Seamounts from the older Hawaiian islands in the Hawaiian-Emperor seamount chain, in the North Pacific. Alkalic basalt dredged from Yuryaku Seamount is similar to the alkalic basalt that caps the volcanoes in the Hawaiian Islands. Analyses gave a mean age of 42.3 ± 1.6 m.y. for Yuryaku Seamount.[2] The data collected helped show that the age of the Hawaiian-Emperor bend is about 41 to 43 m.y. Alkalic basalt have been sampled at Yuryaku Seamount. The last eruptions of Yuryaku Seamount was 43 million years ago.[3]
References
- ^ "Seamount Catalog". Seamounts database. EarthRef, a National Science Foundation project. Retrieved 2009-04-10.
- ^ Clague, D.A., Dalrymple, G.B. and Moberly, R. (1975). "Petrography and K-Ar ages of dredged volcanic rocks from the western Hawaiian Ridge and the southern Emperor Seamount Chain". Society of America, Bulletin 86(7). The Geological Society of America. pp. 991–998. Retrieved 2009-04-11.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ^ Seach, John. "Yuryaku Seamount - John Seach". Volcanic database. volcanolive.com. Retrieved 2009-04-11.
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