摘要
别勒滩位于察尔汗盐湖西部边缘地区，与东台吉乃尔盐湖接壤，同处柴达木盆地拗陷中心，在整个柴达木盆地盐湖中也是Li元素相对富集的地段之一。该地段在距北岸10km的范围内，Li平均含量为0．594g／L，最高可达1．225g／L，与东台吉乃尔盐湖晶间卤水中IJi含量很接近，但Mg/Li比值高出东台吉乃尔盐湖2—3倍。该地段Li的水平分布大致可划分为3个区域：I区Li含量为1．0—1．2g／L；Ⅱ区“含量为0．4～0．6g／L；Ⅲ区Li含量为0．2～0．3g／L，其变化趋势是由北向南逐渐降低。别勒滩干盐湖底部盐层形成于距今25000a，上部盐层成盐期大约距今15000a。别勒滩西部边缘的涩聂湖是在大约距今10000a左右形成的新的具有表面卤水的全新世盐湖，该湖也是别勒滩区段主要物质来源的汇集区和补给区。
Qarhan salt lake is located at the eastern Qaidam basin, and Bieletan is located at the west edge of Qarhan salt lake that border with East Taijilaier salt lake. Both the above two regions are in Qaidam basin topographic depression center and enrichment of lithium. The average level of Li content is 0. 594 g/L, up to 1. 225 g/L in the scope of the Bieletan region 10 km away from the north ,which is close to the intercrystal brine of East Taijilaier Salt Lake. But the ratio of Mg,/Li is 2 - 3 times higher than dongtaijilaier salt lake. The horizontal distribution of Li can be roughly divided into three regions： I . Li content is 1.0 - 1.2 g/L; II. Li content is 0. 4 - 0. 6 g/L ; m. Li content is O. 2 - 0. 3 g/L. The change tendency is gradually reduced from north to south. The bottom salt belt of the Bieletan＇ s dry salt lake formed at 25 000 years ago,and the upper at 15 000 years ago. The Seniehu lake,located at northwest edge of Bieletan and formed at 10 000 years ago, is a new holocene salt lake with the surface brine and the main source of material collection and supply area of Bieletan.
出处
《盐湖研究》
CSCD
2014年第1期1-5,共5页
Journal of Salt Lake Research
基金
国家973项目(2012CB426501)
国家自然科学基金(40772079)支持
关键词
别勒滩
Li含量
成盐期
晶间卤水
Bieletan
Li content
Salify time
Intercrystalline brine
