摘要
柴达木盆地是我国最为重要的钾盐矿床分布地区,对保证我国粮食安全和国家战略需求具有十分重要的意义。通过对小梁山—大风山区域钾盐矿分布的调查,了解了区域内地层、构造特征、成矿关系及水文地质条件。查明了以钾为主的浅层固液相盐湖矿体分布特征。区域内分布5个固体石盐矿层,且矿层厚度自东向西逐渐增加。区域内深层卤水矿有松散岩类孔隙卤水矿、构造裂隙孔隙卤水型矿2种类型,按产出时代,自上而下分为5个矿层,且均属硫酸镁亚型卤水。
Qaidam Basin is the most important area for the distribution of potash deposits in China,which is of great significance for ensuring China′s food security and national strategic needs.Through the investigation of the distribution of potash deposits in the Xiaoliangshan&Dafengshan area,the stratigraphic,tectonic features,metallogenic relationships and hydrogeological conditions of the area were obtained.The distribution characteristics of the shallow solid-liquid salt lake ore body dominated by potassium were identified.Five solid rock salt deposits are distributed in the area and the thickness of the deposit gradually increases from east to west.There are two types of deep brines in the region:loose rock pore brines and tectonic fracture pore brines.According to the age of production,they are divided into five ore layers from top to bottom,and all belong to magnesium sulfate subtype brine.
作者
甘会春
Gan Huichun(Yangtze River Geological Prospecting Institute,Nanjing 210046,China)
出处
《能源与环保》
2019年第11期80-85,共6页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
