GENERAL GEOLOGY

Detailed explanation-1: -Chemical sedimentary rocks are formed by precipitation of minerals from water or by alteration of already existing material in place. The most common of these rocks include evaporites, chert, and some varieties of carbonate rocks (limestones and dolostones).

Detailed explanation-2: -Evaporite deposits occur in both marine and nonmarine sedimentary successions.

Detailed explanation-3: -Evaporites are chemical sedimentary rocks that form from the crystals that remain after water evaporation. Borax and gypsum are two examples of evaporite rocks.

Detailed explanation-4: -Evaporites, a special type of chemical sedimentary rock that include halite and gypsum, form as sediments, and are left behind when water in the original solution evaporates.

Detailed explanation-5: -The most common chemical sedimentary rock, by far, is limestone . Others include chert, chalk, evaporites like rock gypsum and rock salt, and coal.