This quaternary system is a simple eutectic type, and no double salt or solid solution was found.

结果表明：该四元体系属简单共饱型，无复盐或固溶体形成；

In Jingyuan region, Quaternary system developed well, and zoned clearly, and there are complex genetical types.

靖远地区第四系发良良好, 分带性明显, 成因类型较为复杂.