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 | |
| 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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Aizawa, K., Yoshimura, R., & Oshiman, N. (2004). Splitting of the Philippine Sea Plate and a magma chamber beneath Mt. Fuji. Geophysical Research Letters, 31(9). https://doi.org/10.1029/2004GL019477