GEOLOGY

Detailed explanation-1: -Evaporite rocks form when sea water or lake water dries up and precipitates gypsum (CaSO4·2H2O), halite (NaCl), or other minerals. Evaporites are chemical sedimentary rocks.

Detailed explanation-2: -Evaporites are considered sedimentary rocks and are formed by chemical sediments.

Detailed explanation-3: -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-4: -The most common chemical sedimentary rock, by far, is limestone . Others include chert, banded iron formation, and evaporites .

Detailed explanation-5: -Evaporites are layered crystalline sedimentary rocks that form from brines generated in areas where the amount of water lost by evaporation exceeds the total amount of water from rainfall and influx via rivers and streams.