how is salt extracted from the sea?
It can be either mined or through the mechanical evaporation of brine.
Salt
 is extracted from the vast sedimentary deposits which have been laid down over the millennia from the evaporation of seas and lakes. These are either mined directly, producing rock salt, or are extracted in solution by pumping water into the deposit. In either case, the salt may be purified by mechanical evaporation of brine. Traditionally, this was done in shallow open pans which were heated to increase the rate of evaporation. More recent
who lived for many years in the bible Methuselah. has he been mentioned in any other sacred texts? Yes, in the Book of Jubilees and the Rabbinic literature. what is the first one about? It is an ancient Jewish religious work of 50 chapters. did any early written records of this book survive? Yes, extensive fragments among the Dead Sea Scrolls and four complete Ge'ez texts. where were the former discovered? Qumran Caves in the Judaean Desert, near Ein Feshkha on the northern shore of the Dead Sea in the West Bank. how does this sea get its name? Hebrew, meaning "sea of salt". what are the climatic conditions like here? Hot desert climate. is this place mentioned in the bible? Yes. what animals are found here? Algae and halobacteria. how was this formed? There are 2 theories - one is that the Dead Sea lies in a true rift zone and the other is that its a consequence of a "step-over" discontinuity along the Dead Sea Transform, creating an extension of the crust with consequent subsidence. what are the cultural significance of the biblical character mentioned earlier? It has become a synonym for longevity. what legends surround him? He serves the symbolic function of linking the Creation and the Flood. does he symbolize anything else? His age is used to give the impression that part of Genesis takes place in a very distant past.
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Salt [SEP] Production
These are either mined directly, producing rock salt, or are extracted in solution by pumping water into the deposit. In either case, the salt may be purified by mechanical evaporation of brine. Traditionally, this was done in shallow open pans which were heated to increase the rate of evaporation. More recently, the process is performed in pans under vacuum. The raw salt is refined to purify it and improve its storage and handling characteristics. This usually involves recrystallization during which a brine solution is treated with chemicals that precipitate most impurities (largely magnesium and calcium salts). Multiple stages of evaporation are then used to collect pure sodium chloride crystals, which are kiln-dried.