罗布泊盐湖罗北区卤水主要离子平面分布特征

Distribution Characteristics of the Main Ions in Luobei Area of Luobupo Salt Lake

摘要:

罗布泊盐湖罗北区有着丰富的地下卤水资源，通过野外采集样品，室内试验检测，研究了罗布泊盐湖罗北区表层卤水主要离子的分布特征。采集卤水样品46件，通过分析，表明该区卤水矿化度范围在18.169～389.253g/L，略有中间高四周低的趋势。卤水中的阳离子主要为K+，Na+，Ca2+，Sr2+，B3+；阴离子主要为Cl，SO24，HCO3，Br，I。其中K+，Na+，Li+，Cl，SO24，B3+的分布及含量均与矿化度呈正相关关系，Ca2+，Sr2+的分布及含量与矿化度呈负相关关系。HCO3，Li+，Br，I，Mg2+的分布及含量与矿化度关系不明显。

Abstract:

There are abundant resources in Luobei area of Luobupo salt lake. Through collecting samples in the field and indoor test, distribution characteristics of the main ions in the intercrystalline brine in Luobei area of Luobupo salt lake have been studied. 46 samples of the intercrystalline brine have been collected and analyzed. It is showed that brine salinity in this areas is in the range of 18.169～389.253g/L with the trend of high in the middle part and low in the surrounding areas. Major cations are K+，Na+，Ca2+，Sr2+，B3+，and major anions are Cl，SO24，HCO4，Br，I. Among them, distribution and content of K+，Na+，Li+，Cl，SO24，B3+ have a positive relation with the degree of mineralization, while distribution and content of Ca2+，Sr2+ have a negative relation with the degree of mineralization. Relationship of the distribution and content of HCO3，Li+，Br，I，Mg2+ is not obvious.