Splitting of the Philippine Sea Plate and a magma chamber beneath Mt. Fuji

Koki Aizawa; Ryokei Yoshimura; Naoto Oshiman

doi:10.1029/2004GL019477

Splitting of the Philippine Sea Plate and a magma chamber beneath Mt. Fuji

Koki Aizawa, Ryokei Yoshimura, Naoto Oshiman

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

Mt. Fuji is located in a tectonically unique area, but various aspects of the structure have not been fully explained. Here we show the results from a magnetotelluric survey across Mt. Fuji along a 70 km observation line. The profile shows that a conductive body is located between two resistive bodies at depths greater than 15 km. Low frequency earthquakes occur above the conductor. We interpret these results in a model where beneath Mt. Fuji, the subducting Philippine Sea Plate is split into two parts, and a magma chamber is located in the gap. Due to this unique structure, Mt. Fuji may be able to sustain a high basalt magma flux throughout its entire history.

Original language	English
Journal	Geophysical Research Letters
Volume	31
Issue number	9
DOIs	https://doi.org/10.1029/2004GL019477
Publication status	Published - May 16 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Geophysics
Earth and Planetary Sciences(all)

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Splitting of the Philippine Sea Plate and a magma chamber beneath Mt. Fuji

Abstract

All Science Journal Classification (ASJC) codes

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