How sediments become mobilized

Abstract: Geological sediments end to strengthen during progressive burial but the interplay of porosity and permeability, strain and effective stress gives ri e to numerous circumstances in which the strength increase can be temporarily reversed. The sediment becomes capable of bulk move-ment- sediment mobilization. Most explanations involve overpressuring, which results from addi-tional loading being sustained by pore-fluid that is unable to dissipate adequately, l ading to frictional strength reduction. The processes are highly heterogeneous, areally and with depth. The loads can be external ('dynamic') and both monotonic (e.g. a rapidly added suprajacent mass) an