蒸发盐沉积若干问题的实验研究

在实验研究的基础上,本文探讨了广泛分布于我国境内蒸发盐的沉积机理,论述了硫酸钠亚型不同组分卤水的演化、矿物形成条件及析盐序列等,指出钾盐沉积出现的可能性。实验证明钾盐沉积物的形成,不一定达到国内外某些学者认为的“干湖”阶段,从而发展了成钾理论。文中阐明了介稳平衡和稳定平衡的不同性质,在卤水组分和温度相同的条件下,析盐的种类和组合关系不同。在蒸发盐矿床形成过程中,两类平衡所起的作用不同,盐类矿物沉积阶段主要处于介稳平衡状态。

EXPERIMENTAL STUDY OF SOME PROBLEM IN THE SEDIMEN TRY PROCESS OF THE ERAPORITE DEPOSIT

On the base of experimental research, This paper inguires into sedimentary mechanism of evaporite in somewhere of our country, expounds the evolution of brine which has different component of sodium sulfete subtype and salt--outing series, and point out probaadility of potassium salt depositing. The experiment proved forming potassiunm deposit uncertianly reachs "dry lake" stage. which some scholar thinks at home and abroad. Thus we havedevelop pota- ssium-forming theory. The article has expound different property of metastable equilibrium. and stableequilibriun. Under the same condation in the component of brine and temperature, salt--outing sort and relation of mineral combination are different in the different equilibrium. The both equilibrium have distinct action in formative process of eviporite diposit. The dipositional stage of salt ismianly the metastable equilibrium.