地球表面最低点——死海

编者:人文地理 来源:最有料 时间:2014-12-08 18:34 最签:最低 浏览:

地球表面的最低点是死海。那里的水面平均低于海平面约400米。死海是一个内陆盐湖,位于以色列和约旦之间的约旦谷地。西岸为犹太山地,东岸为外约旦高原。约旦河从北注入。死海
地球表面最低点——死海

  地球表面的最低点是死海。那里的水面平均低于海平面约400米。死海是一个内陆盐湖,位于以色列和约旦之间的约旦谷地。西岸为犹太山地,东岸为外约旦高原。约旦河从北注入。死海长80公里,宽处为18公里,表面积约1020平方公里,最深处400米。死海位于约旦-死海地沟的最低部,是东非大裂谷的北部延续部分。这是一块下沉的地壳,夹在两个平行的地质断层崖之间。死海位于沙漠中,降雨极少且不规则。利桑半岛年降雨量为65毫米。冬季气候温暖,夏季炎热。湖水年蒸发量平均为1400毫米,因此湖面往往形成浓雾。湖面水位有季节性变化,在30至60厘米之间。死海水含盐量极高,且越到湖底越高。最深处有湖水已经化石化(一般海水含盐量为千分之35,而死海的含盐量在千分之230至250左右。表层水中的的盐分每公升达227至275克,深层水中达327克。)。由于盐水浓度高,游泳者极易浮起。湖中除细菌外没有其他动植物。涨潮时从约旦河或其他小河中游来的鱼立即死亡。岸边植物也主要是适应盐碱地的盐生植物。死海是很大的盐储藏地。死海湖岸荒芜,固定居民点很少,偶见小片耕地和疗养地等。

  The lowest point on the earth -- the Dead Sea

  The surface of the earth and the lowest is the dead sea. Where the surfaceaverage below sea level about 400 meters. The dead sea is an inland Saline Lake, located between Israel and Jordan, the Jordan valley. The West BankJewish mountain, to the east coast of Transjordan plateau. The Jordan River from the north into the. The dead sea is 80 km long, width of 18 kilometers, the surface area of about 1020 square kilometers, the most depth of 400 meters.The dead sea is located in the lowest part of the Jordan Dead Sea trench, is the northern continuation of the rift valley. This is a piece of the sinking of the crust,sandwiched between two parallel geological fault scarp. The dead sea is located in the desert, rare and irregular rainfall. Annual rainfall is 65 mm in Arizonapeninsula. Warm winter climate, hot summer. The average annual evaporation of lake water is 1400 mm, so the lake often forming dense fog. The level of the lakethere is a seasonal change, between 30 and 60 cm. Dead sea salt is extremely high, and more to the bottom of the lake is high. The depths of the lake have been fossilized (general salinity is 35 parts per thousand, and the salt content of the Dead Sea in about 230 to 250 per thousand. Salinity in surface water of 227 to 275 grams per liter, deep water up to 327 grams.). Because the brineconcentration is high, the swimmer is extremely easy to float. The lake except the bacterial outer no other animal and plant. When the tide is rising from the river Jordan or other Creek in the swimming fish died immediately. Shore plants also mainly is to adapt to the saline alkali land halophyte. The dead sea salt storagegreatly. The dead sea shore barren, fixed residential rarely, occasionally small piece of farmland and Spa etc..

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