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Role of Volatiles on Petit-Spot Volcanoes

update:2017-02-03
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Features
The new kind of volcanoes, petit-spot, are located off NE Japan and Chile. They erupt at a submarine portion to be far from tectonic plate boundaries (e.g., mid-oceanic ridges and volcanic arcs) of the usual sites of volcanoes, earthquakes, and related geologic activity. The magmas have extremely high carbon dioxide and possibly originate from the base of tectonic plate.

Targeted Application(s)/Industry
The magma is squeezed upward and erupts in deep submarine environment wherever the tectonic plate flexes and fractures in the world. Collaborating work with business community would be required in order to search the submarine volcanoes and their related mines.

Researchers

Center for Northeast Asian Studies

HIRANO, Naoto , Associate Professor
PhD

Keywords

Related Information

Publications
Petit-spot as definitive evidence for partial melting in the asthenosphere caused by CO2. [Nature Communications, 8, 2017, doi: 10.1038/ncomms14302]
Submarine lava fields in French Polynesia. [Marine Geology, 373, 2016, 39-48]
Carbon dioxide emission to Earth's surface by deep-sea volcanism. [Geology, 41, 2013, 1167-1170]
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