Any pore pressure which differs from normal pore pressure. It may be either higher than normal pore pressure (super-normal) or lower than normal pore pressure (subnormal). See overpressure and underpressure.
Any pore pressure which differs from normal pore pressure. It may be either higher than normal pore pressure (super-normal) or lower than normal pore pressure (subnormal). See overpressure and underpressure.