Show DEEP SALT BED in kansas a deep well struck rock salt at feet below the surface and penetrated feet of rock salt in beds from five to sixty feet thick according to the united states geological survey A large area in this state is underlain by salt which is mined by many shafts and obtained by pumping brine drilling for oil in texas and louisiana has revealed the presence of tremendously thick deposits of rock salt at a depth of a few hundred feet of 2000 feet are common and one drill hole passed through more than feet of rock salt most of the salt made in utah is produced by evaporating the water of great salt lake and in california by evaporating sea water these sources are inexhaustible and the limit of production by solar evaporation therefore will never be reached |