Subduction-related magmatic arcs represent immense accumulations of intermediate, calc-alkaline igneous rocks and are considered the main factories of continental crust on Earth. Estimating the pace at which these giant volumes of magmatic rock were added to the crust and the mechanisms responsible for magmatic addition are fundamental issues for the disciplines of igneous petrology and contine...

The Kab Amiri area in the Central Eastern Desert (CED) of Egypt comprises ophiolitic rocks, island arc metasediments, and granitic rocks. This study deals with petrography geochemistry rocks to understand their petrogenesis geodynamic evolution CED belt. ophiolite is dismembered, comprising serpentinites metabasalt (spilite). Serpentinites have low contents Al2O3 (1.14 wt%) CaO (0.65 wt%), sugg...

Underthrusting and the elastic-rebound theory are consistent with the gross static deformations after earthquakes for island-arc regions such as Japan, Alaska, and Chile. Yet anomalous, time-dependent post-earthquake adjustments suggest additional processes. Here the asthenosphere or mantle becomes the element that both determines the post-seismic deformation and controls the accumulation of st...