鸭湖地区水文地质及卤水钾盐矿床特征分析

Analysis of Hydrogeological and Brine Potassium Salt Deposit Characteristics in Yahu Area

鸭湖地区处于柴达木盆地中西部东台吉乃尔湖、西台吉乃尔湖之间,以往盐类找矿地质工作主要针对盆地西部浅部,该区卤水钾盐矿床勘探程度较低。为进一步了解鸭湖地区水文地质及卤水钾盐矿床地质特征,通过分析相关地质勘查资料,并与盆地西部大浪滩等地区钾盐矿床成矿特征进行类比。结果表明:鸭湖地区与盆地西部大浪滩等地区钾盐矿床所处环境相近,卤水钾矿的形成和迁移富集特征相似;区内的断裂构造对钾盐卤水有一定补给作用,因此在粗颗粒沉积层中和断裂发育地段寻找卤水钾盐等矿产有着较大的潜力。研究为后期勘探工作提供理论指导。

Yahu area is located between the East Taijinaier Lake and the West Taijinaier Lake in the central and western Qaidam Basin.In the past,the salt prospecting geological work was mainly aimed at the shallow part of the western basin,and the exploration degree of the brine potassium salt deposit in this area was low.In order to further understand the hydrogeology of the Yahu area and the geological characteristics of the brine potassium salt deposit,the relevant geological exploration data are collected and analyzed,and the metallogenic characteristics of the potassium salt deposits in the western part of the basin are compared.The results show that the environment of potash deposits in Yahu area is similar to that in Dalangtan area in the west of the basin,and the formation,migration and enrichment characteristics of brine potash deposits are similar.The fault structure in the area has a certain recharge effect on the potassium salt brine,so it has great potential to find minerals such as brine potassium salt in the coarse-grained sedimentary layer and the fault development area.The research provides theoretical guidance for later exploration work.