Mantle-derived helium released through the Japan trench bend-faults
Abstract Plate bending-related normal faults (i.e.bend-faults) develop at the outer trench-slope of the oceanic plate incoming into the subduction zone.Numerous geophysical studies and numerical simulations suggest that bend-faults play a key role by providing pathways for seawater to flow into the oceanic crust and the upper mantle, thereby promot