摘要
扎仓茶卡(张藏茶卡)是一个富硼、锂的现代内陆盐湖,位于西藏西部革吉县境内、冈底斯山北麓的一个断陷盆地中。这里气候干燥、降水少、蒸发量大,属大陆性气候。该湖由三个湖组成,自东向西分别为Ⅰ,Ⅱ,Ⅲ湖,东西长40公里,南北宽10余公里,总面积130平方公里。其中Ⅰ湖和Ⅲ湖湖表卤水很少,经常处于半干涸状态;Ⅱ湖有湖表卤水。
1.Composition of the BrineThe specific gravity of its surface brine is from 1.073 to 1.291.Its salinity is 230-350 g/l.It consists of more than 30 elements,such as Na^(+),K^(+),Mg^(++),Ca^(++),Cl^(-),SO_(4)^(=),HCO_(3)^(-),and so forth.In addition to the above elements,it has also B,Li,Rb etc.Hence it is highly mineralized with rich-B and rich-Li.2.Type of the Lake This saline lake belongs to the sulfate type.Of which lakeⅠand lakeⅡare of Na_(2)SO_(4)subtype,lakeⅢis of MgSO_(4)subtype.3.The Distributive Characteristics of B and Li in the Lake(1)The concentrations of B and Li are higher than that in sea water,B being 78-121 times higher,Li being 2625-4000 times higher.(2)A striking enrichment area of B,Li was formed in this brine lake.(3)The concentrations of B and Li are related to total mineralization of this lake.
作者
郑喜玉
Zheng Xiyu(Qinghai Institute of Saline Lake,Academia Sinica)
出处
《海洋与湖沼》
1982年第1期26-34,共9页
Oceanologia Et Limnologia Sinica
