CAJ | 학술논문

通过对区域地质、构造和岩相古地理的研究，从成矿阶段的角度，将控矿因素分为背景控矿因素、沉积控矿因素、改造控矿因素。得出：背景因素为区域性盆地沉积环境形成条件；沉积控矿因素直接控制了工区石盐矿层的层理形态；改造控矿因素中，局部构造对矿层的改造是矿区盐层多呈背斜分布且轴部较两翼矿层大幅变厚的原因，钾石盐出现在光卤石矿层顶部是因为上部裂隙水或者封存的老卤水向下侵蚀光卤石矿层顶部，溶蚀了溶解度相对较大的MgCl2，而溶解度相对较小的KCl被保留下来，从而多在上盐层光卤石矿顶部形成再生或次生钾石盐矿。
통과대구역지질、구조화암상고지리적연구，종성광계단적각도，장공광인소분위배경공광인소、침적공광인소、개조공광인소。득출：배경인소위구역성분지침적배경형성조건；침적공광인소직접공제료공구석염광층적층리형태；개조공광인소중，국부구조대광층적개조시광구염층다정배사분포차축부교량익광층대폭변후적원인，갑석염출현재광서석광층정부시인위상부렬극수혹자봉존적로서수향하침식광서석광층정부，용식료용해도상대교대적MgCl2，이용해도상대교소적KCl피보류하래，종이다재상염층광서석광정부형성재생혹차생갑석염광。
Through study on regional geology, structure and lithofacies paleogeography, from the aspect of mineralization, ore - controlling factors can be divided into background of ore - controlling factors, deposi- tion ore - controlling factors and transformation ore - controlling factors. It is concluded that background ore - controlling factors are the forming conditions for sedimentary environment of regional basins; deposi- tion ore- controlling factors directly control the bedding patterns of the rock salt layers; while in transfor- mation ore - controlling factors, the transformation of local structures to layers will cause the salt - bed distributed in anticline, and the salt- bed in axis partis are thicker than in the wings. Sylvite occurred on the top of carnallitebed, because the upper fracture water or old brine eroded carnallite - bed from the top to down part, and eroded MgCl2 with relative high solubility, while KCl with relative low solubility was preserved. Thus, recrystallized or secondary crystallized halite had been formed on the top of carnallite bed.