How did low sea levels lead to evaporite deposits during the late Silurian?

During the late Silurian, global lowstands in sea level played a critical role in the formation of evaporite deposits by altering ocean circulation patterns. These low sea levels helped isolate marine waters in shallow basins, preventing them from mixing freely with the open ocean.12

In these restricted or semi-restricted environments, the rate of evaporation exceeded the rate of water replenishment from inflow or precipitation. As the volume of trapped seawater decreased, the remaining brines became increasingly concentrated, eventually reaching the point where chemical precipitation occurred. This process led to the accumulation of thick layers of minerals such as halite, anhydrite, and gypsum. Such conditions were particularly widespread across regions like Laurentia, Baltica, Siberia, and parts of Gondwana during the late Silurian, resulting in famous deposits like those of the Salina Group.3241