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罗布泊罗北凹地第四系上部盐层中蕴藏丰富的卤水，卤水中则富含钾（ＫＣｌ平均品位为１．４０％）。文章通过对罗布泊卤水氢、氧、锶及硫同位素等分析及与塔里木盆地（河流）、柴达木盆地等地区对比研究，确定了罗布泊富钾卤水源于地表水，可能主要是塔里木盆地南北缘河流水；卤水中的硫钾等物质组分主要来源于南天山、塔里木盆地西北、西南部中新生代石膏钙芒硝石盐矿床或地层及其古代地层卤水。由于第四纪期间塔里木盆地西部抬升，东部罗布泊地区则发生沉降，这些物质组分被地表水溶解并最终汇集于罗布泊，从而造成了该区水体中钾硫等背景值较高，使卤水在蒸发浓缩至钙芒硝阶段时钾就富集成矿。
The brine in the northern part of the Lop Nur area is rich in brine, while brine is rich in potassium (KCl average grade is 1.40%). By comparing the hydrogen, oxygen, strontium and sulfur isotopes of the Lop Nur brine with the Tarim Basin (river) and the Qaidam Basin, the article determined that the Lop Nur-rich potassium brine is derived from surface water, which may be mainly from the north and south of the Tarim Basin River water and other sulfur, potassium and other material components in the brine mainly come from the Mesozoic-Cenozoic gabion-salt glauberite salt deposit or strata in South Tianshan and Tarim Basin and their ancient formation brine. Due to the uplift of the western Tarim Basin during the Quaternary period, the sedimentation of the eastern Lop Nur area occurred. These components were dissolved by the surface water and finally collected in the Lop Nur. As a result, the background value of potassium, sulfur and sulfur in the water body was high, Concentration to the glauberite stage potassium enrichment mineralization.