东台吉乃尔盐湖基本地质特征及锂的分布规律研究

Geological Characteristics and Lithium Distribution of East Taijinar Salt Lake in Qaidam Basin

中文关键词:  东台吉乃尔盐湖  盐湖卤水  Li分布

英文关键词::East Taijinar salt lake  Salt lake brine  Distribution of Lithium

中文摘要:

      东台吉乃尔盐湖位于柴达木盆地中部,是我国众多盐湖中富含Li和B的盐湖之一。该湖与西台吉乃尔盐湖、一里坪盐湖和察尔汗盐湖别勒滩段构成了中国最大的现代盐湖锂矿床分布带。该湖地下晶间卤水分为上下两层,即Ⅰ、Ⅱ两个卤水矿层。化学组分,阴离子以Cl-为最高,其次是SO2-₄、CO2-₃、HCO-₃；阳离子以Na⁺为最高,依次为Mg²⁺、K⁺、Ca²⁺；化学类型属硫酸盐型硫酸镁亚型。湖区水体主要由来自南部昆仑山脉的东台吉乃尔河补给。根据1998年在该盐湖的工作和前人的地质资料,对2000年前东台吉乃尔盐湖的湖区地貌、卤水的化学组成、Li的分布规律以及成盐年代进行了初步研究和探讨。

英文摘要:

      :Located in the central area of Qaidam Basin, East Taijinar salt lake is rich in Lithium and Boron resources. East Taijinar salt lake, West Taijinar salt lake and Yiliping salt lake constitutes belong to China’s largest modern lithium-rich brine deposits. The intercrystalline underground brine in East Taijinar salt lake area was divided into Ⅰ ore beds and Ⅱ brine ore bed. Among the chemical compositions, Cl- is the highest anion, followed by SO2-₄, CO2-₃ and HCO-₃, while Na⁺ is the highest cation,followed by Mg²⁺, K⁺ and Ca²⁺.The hydrochemical type belonging to the magnesium sulfate subtype, East Taijinar salt lake is mainly supplied by East Taijinar river having the source in Kunlun mountains.Based on the field investigation in 1998 and previous geological data, the authors have preliminarily researched and discussed the landscape, brine chemical compositions, Lithium distribution before 2000, along with salt ore forming age in East Taijinar salt lake area.