although called the "Dead Sea", this sea and the whole region on its shore is very much alive. The dead Sea lies some 400 m below sea level at the lowest point on the earth's surface, and is a part of the Syrian - East Africa Rift Valley, flanked by the Judean Mountains to the west and the Moab mountains to the east.
The Dead Sea is one of the most saline lakes in the world. It is fed mainly by River Jordan in the north and by perennial springs and streams from the east and west. Having no outlet, the Dead sea is a "terminal lake" which loses huge amounts of water by evaporation into the hot dry air. This results in high concentrations of salts and minerals in a unique composition that is particularly rich in chloride salts of magnesium, sodium, potassium, calcium, bromine and various others. The Dead Sea brine's chemical composition reflects erosion, as well as the recycling of older deposits.
Leaching of minerals from the geological strata also contributes to the Dead Sea brine and to a number of thermomineral springs along its shores. In addition, alluvial deposits form the much valued Dead Sea mineral mud, also known as Dead Sea therapeutic black mud.
The uniqueness of the Dead Sea has been known for centuries. This is the only place in the world with this particular combination of exclusive spa benefits: peculiar sun radiation and climatic conditions, enriched oxygen atmosphere, mineral-rich salt sea, thermomineral springs, and mineral-rich mud.
In days of old, Dead Sea water and salt were imported to Italy by Roman nobles. Judean asphalt, the bituminous substance rising to the surface of the lake, was used for many industrial and medicinal purposes. Plants growing in lakeside oases, especially the balsam tree, produced valuable and highly sought-after cosmetics, perfumes and medicinal substances. Their value were of such great economic importance that wars were fought for their possession, as when Mark Anthony conquered the Dead Sea area for Cleopatra.
Today, the Dead Sea Works is a major industrial complex which for many decades has extracted potash, bromine and other chemicals for worldwide exports.
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