Soichi Omori

TL;DR: In this paper, the authors proposed a petrologic model for arc volcanism, where they combined tomographic images and earthquake hypocenters with phase diagrams in the systems of peridotite+water.

TL;DR: In this paper, the authors present results from thermodynamic computations in appropriate petrogenetic systems to quantitatively evaluate CO2 generation from calc-silicate rocks as well as model mantle peridotite, and demonstrate that CO2 release occurs in both cases under the P-T conditions and tectonic settings inferred for the formation of charnockites and ultrahigh-temperature granulites.

TL;DR: In this article, the authors classified the upper mantle in this region into three major domains: (a) metasomatic-metamorphic factory (MMF), subduction zone magma factory (SZMF), and the big mantle wedge (BMW).

TL;DR: In the early half of the Earth history, the felsic continental crust on the surface which formed in an intra-oceanic environment has mostly been subducted into the deep mantle, except in the rare case of parallel arc collision.

TL;DR: In this article, a close link between the depth distribution of subduction-zone earthquakes and dehydration events in the hydrated slab-peridotite is established using a combination of thermodynamic calculation and Schreinemakers analysis on previous experimental data.