Soft-sediment deformation structures that have been attributed to these triggers are considered below. 2.4. Liquefaction in experiments. Following exploratory experiments that induced liquefaction by striking a bench supporting a tank of sediment and water (Anketell et al., 1970, Kuenen, 1958, Selley, 1969, Selley and Shearman, 1962), controlled and repeatable experiments on the effects of ...