摘要
The majority of present-day evaporite deposition occurs in arid closed continental basins in which the playa lake is most common. The distribution of evaporite minerals and sedimentary features of salt crust are usually zonal in a playa lake. The research also gives a general overview of the sedimentary features in different cycles of salt-pan evaporite, as well as the relationship between the development of polygonal fissure structures of salt crust and the groundwater brine table. The types of salt-crust structure include polygon crack, well-developed honeycomb-shaped halite crusts, mound-shaped pattern and plate-shaped halite crusts. However, the sediment beneath the surface is typically saturated with concentrated brines and displacive evaporites.