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砂岩型铀矿指产于砂岩、砂砾岩等碎屑岩中的外生后成铀矿床。中国铀资源较为丰富,分布于23个省、市、自治区。由于铀矿的成矿地质条件多样,形成了砂岩型、花岗岩型、火山岩型,碳硅泥岩型四大主要铀矿类型,其中砂岩型铀矿含量最多,约占35%[1]。本文着重讲述砂岩型铀矿的特点以及对鄂尔多斯盆地砂岩型铀矿的特征做了简要描述。同时对砂岩型铀矿开采方法中的原地浸开采技术也进行介绍,并对今后原地浸砂岩型铀矿的开采方法做了展望。
Sandstone-type uranium deposits refer to exogenous post-production uranium deposits in clastic rocks such as sandstone, glutenite and so on. China is rich in uranium resources, distributed in 23 provinces, municipalities and autonomous regions. Due to the variety of geological conditions of uranium deposits, four main uranium types of sandstone type, granite type, volcanic rock type and carbon-silicon mudstone type are formed, of which the content of sandstone-type uranium ore is the largest, accounting for about 35% [1]. This article focuses on the characteristics of sandstone-type uranium deposits and the characteristics of sandstone-type uranium deposits in the Ordos Basin. At the same time, the in-situ leaching technology in the sandstone-type uranium mining method is also introduced, and the future prospect of in-situ leaching of sandstone-type uranium deposits is prospected.