تشكيلات بحيرة اللسان
017- Dead Sea
Lake Lisan preceded the present-day Dead Sea. Around 65,000 years ago, the larger Lake Lisan extended from Lake Tiberias in the north, to 35 kilometers south of the Dead Sea. Throughout its life, the size and level of Lake Lisan fluctuated, reflecting the regional and global climate changes. During warming events, lake evaporation caused the precipitation of white calcium carbonates (chalk) on the bottom of the lake. In wet years, gray silt and clay washed down the surrounding mountains to the bottom of the lake. The alternating white and gray sedimentary layers are called Lisan Formation. It is an important, natural climate record.
The sedimentary layers of Lake Lisan form the white, soft hillsides of some areas in the Jordan River Valley and along the Dead Sea. An example is south of the Dead Sea at the GPS coordinates: 31.2363°, 35.5202°.