Zahi
Shaked A tour guide in
Israel and his camera.
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"
Dead Sea" , "
Sea of Salt", also called the
Salt Sea, is a salt lake bordering
Jordan to the east, and Israel and the
West Bank to the west. Its surface and shores are 422 metres (1,385 ft) below sea level,[2] the lowest elevation on the
Earth's surface on dry land.
The Dead Sea is 378 m (1,240 ft) deep, the deepest hypersaline lake in the world. It is also one of the world's saltiest bodies of water, with 33.7% salinity. Only
Lake Assal (
Djibouti),
Garabogazköl and some hypersaline lakes of the
McMurdo Dry Valleys in
Antarctica (such as
Don Juan Pond) have a higher salinity. It is 8.6 times more salty than the ocean.[4] This salinity makes for a harsh environment where animals cannot flourish, hence its name. The Dead Sea is 67 kilometres (42 mi) long and 18 kilometres (11 mi) wide at its widest
point. It lies in the
Jordan Rift Valley, and its main tributary is the
Jordan River.
The Dead Sea has attracted visitors from around the
Mediterranean basin for thousands of years. Biblically, it was a place of refuge for
King David. It was one of the world's first health resorts (for
Herod the Great), and it has been the supplier of a wide variety of products, from balms for
Egyptian mummification to potash for fertilizers.
People also use the salt and the minerals from the Dead Sea to create cosmetics and herbal sachets. In 2009,
1.2 million foreign tourists visited on the
Israeli side.
The sea has a density of 1.24kg/L, making swimming difficult.The Dead Sea is an endorheic lake located in the Jordan Rift Valley, a geographic feature formed by the
Dead Sea Transform (
DST). This left lateral-moving transform fault lies along the tectonic plate boundary between the
African Plate and the
Arabian Plate. It runs between the
East Anatolian Fault zone in
Turkey and the northern end of the
Red Sea Rift offshore of the southern tip of
Sinai.
The Jordan River is the only major water source flowing into the Dead Sea, although there are small perennial springs under and around the Dead Sea, creating pools and quicksand pits along the edges.[7] There are no outlet streams.
Rainfall is scarcely
100 mm (3.9 in) per year in the northern part of the Dead Sea and barely 50 mm (
2.0 in) in the southern part. The Dead Sea zone's aridity is due to the rainshadow effect of the
Judean Hills. The highlands east of the Dead Sea receive more rainfall than the Dead Sea itself.
To the west of the Dead Sea, the Judean Hills rise less steeply and are much lower than the mountains to the east. Along
the southwestern side of the lake is a 210 m (690 ft) tall halite formation called "
Mount Sodom".There are two contending hypotheses about the origin of the low elevation of the Dead Sea. The older hypothesis is that it lies in a true rift zone, an extension of the Red Sea Rift, or even of the
Great Rift Valley of eastern
Africa. A more recent hypothesis is that the Dead
Sea basin is a consequence of a "step-over" discontinuity along the Dead Sea Transform, creating extension of the crust with consequent subsidence.
Around three million years ago, what is now the valley of the Jordan River, Dead Sea, and
Wadi Arabah was repeatedly inundated by waters from the
Mediterranean Sea. The waters formed in a narrow, crooked bay which was connected to the sea through what is now the
Jezreel Valley. The floods of the valley came and went depending on long scale climate change. The lake that occupied the
Dead Sea Rift, named "
Lake Sodom", deposited beds of salt, eventually coming to be 3 km (1.9 mi) thick.
Approximately two million years ago, the land between the
Rift Valley and the Mediterranean Sea rose to such an extent that the ocean could no longer flood the area. Thus, the long bay became a lake.
Masada (
Hebrew מצדה, pronounced
Metzada (help•info), from מצודה, metzuda, "fortress") is the name for a site of ancient palaces and fortifications in the
South District of Israel on top of an isolated rock plateau, or horst, on the eastern edge of the
Judean Desert overlooking the Dead Sea. After the
First Jewish-Roman War a siege of the fortress by troops of the
Roman Empire led to the mass suicide of the Sicarii rebels, who preferred death to surrender. It is located about
20 km east of
Arad
- published: 24 Sep 2011
- views: 12224