Chemical deposition refers to the process of precipitation and accumulation of substances transported in the form of colloid solution and true solution in water medium after they reach the appropriate place when chemical conditions change
Among them, colloid solution refers to the solution containing a certain size of solid particles or polymer compounds, real solution refers to a higher transparency of aqueous solution
The bones of creatures in the lake, they absorb carbon dioxide from the air to form calcium carbonate, and when the concentration of calcium carbonate reaches a certain level, it accumulates on the sea floor, forming limestone