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Seismic structure of the subducting seamounts on the trench axis: Erimo Seamount and Daiichi-Kashima Seamount, northern and southern ends of the Japan Trench
Earth, Planets and Space volume 61, pages e5–e8 (2009)
We present detailed P-wave velocity models of subducting seamounts from two wide-angle seismic experiments across the Erimo Seamount and Daiichi-Kashima Seamount, northern and southern ends of the Japan Trench. Common characteristics of the velocity models of the seamounts are that the maximum crustal thicknesses of the seamounts are 12–17 km thicker than a typical oceanic crust and that Pn velocities beneath the seamounts are approximately 7.7 km/s, i.e., slower then those of the neighboring area. These features are very similar to the crustal models for the seamounts produced by the Cretaceous off-ridge volcanism on the Pacific Basin.
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Nishizawa, A., Kaneda, K., Watanabe, N. et al. Seismic structure of the subducting seamounts on the trench axis: Erimo Seamount and Daiichi-Kashima Seamount, northern and southern ends of the Japan Trench. Earth Planet Sp 61, e5–e8 (2009). https://doi.org/10.1186/BF03352912
- Erimo Seamount
- Daiichi-Kashima Seamount
- seamount subduction
- seismic structure
- ocean bottom seismograph