老挝甘蒙省钾盐矿床封存水成因机理及赋存位置浅析

摘要

Through the analysis of formation mechanism of secondary sylvite layer in Dongtai mining,we discuss this transformation of the inter-layer brine transform to sealed up brine,and verify with water quality and occurrence position of the sealed up brine which was exposed by mining activities,then,we concluded that:after the dissolution of the carnallite,MgCl2 content of the inter-layer brine should be much greater than the content of KCl and NaCl; inter-layer brine’s final sequestration location should be mainly at the bottom of sylvite layer,or the contact place between the sylvite layer and carnallite layer.%通过对老挝甘蒙省钾石盐矿层形成机理的分析，探讨在此过程中层间卤水到封存卤水的转化过程，并与采矿活动中揭露的封存卤水水质和赋存位置进行验证，得出结论：层间卤水因溶蚀了光卤石，水中MgCl2含量应远大于KCl和NaCl的含量；封存水的赋存位置应主要分布于次生钾石盐矿层的底部或次生钾石盐矿层与光卤石矿层的接触带。