摘要
陆相盐湖盐源复杂多样,主要有陆源、海源和地壳深部三大类。前两类主要通过蒸发成盐,气候起着关键作用,形成的陆相盐湖低水位和高水位体系域中盐岩发育,湖侵体系域中盐岩相对不发育;第三类主要通过兑卤成盐,作为深层卤水通道的深大断裂的活动期次控制了盐岩的发育,盐岩主要发育在湖侵体系域,高水位体系域次之,低水位体系域中盐岩一般不发育。
Terrigenous supply, sea supply and deep brine are three mains among varied salt sources in continental salt lakes. The former two salt sources usually become salina stone by evaporation, and during the course of evaporation, climate is very important. In this kind of sequence, salina stone is abundant in high water system tract and low water system tract, but it is a littler or no in lake transgression system tract. The third salt source usually becomes salina stone by brine mixing. In this mechanism, deep fault is the tun- nel of brine upwelling, so deep seated faulting controls the formation of salina stone. In this kind of se- quence, there is the most abundant of salina stone in the lake transgression system tract, and there is also some salina stone in the high water system tract, but there usually is no salina stone in the low water system tract.
关键词
盐湖
蒸发成盐
兑卤成盐
海侵
深层卤水
salt lake, salina stone deposition by evaporation, salina stone deposition by brine mixing, sea transgression, deep brine
