Stacking patterns

Walther's Law

This figure illustrates how Walther's Law ("Facies adjacent to one another in a continuous vertical sequence also accumulated adjacent to one another laterally") is used in conjunction with stacking patterns of sediments and their associated sedimentary structures to interpret and so determine the depositional setting of the these sediments

1. Figure 6 of exercises on high frequency clastic parasequences. Note the hierarchy of sedimentary structures and their association, from seaward to landward, with the different depositional systems (after Coe et al, 2003) that are listed in Table 1.
2. a) Upper foreshore planar-cross bedded sandstone of wave swash zone overlying trough-cross stratified sandstone zone of breaking waves.
   b) Burrowed sandstone of the middle shorface.
   c) Offshore transition zone.
   d) Upper foreshore planar-cross bedded sandstone of wave swash zone.
   e) Upper shoreface sandstone of wave swash zone to offshore transition zone between storm wave base & fairweather base.