青海省五道梁地区铀异常特征与成因分析

铀资源是重要的战略资源，砂岩型铀矿是目前我国铀矿勘探的主要类型。研究区位于柴达木盆地东部诺木洪北五道梁一带，整体位于霍布逊坳陷带内，北部为锡铁山-牦牛山隆起，南部为诺木洪凹陷。通过收集研究区已有地质资料，开展了地质-伽玛能谱剖面测量、活性炭剖面测量、取样分析及适量的钻探工程等对研究区进行了调查评价，重点分析了研究区分布的航放异常的展布特征、异常特征、铀镭含量特征。在此基础上，分析了铀异常的成因，为该区下一步砂岩铀矿勘查提供了线索。

Analysis of Characteristics and Cause of Uranium anomalies in Wudaoliang area, Qinghai Province

Uranium resource is an important strategic resource, and currently sandstone type uranium deposit is the main type of uranium exploration in China. The study area is located in the Wudaoliang area, which is in the northern part of Nuomuhong, Chaidong basin, the whole area is located in the Huobusun depression zone, the northern part of which is the Xitieshan-Maoniushan uplift, and the southern part of which is the Nuomuhong sag. By collecting the existing geological data of the study area, the geological gamma spectrometry profile survey, activated carbon profile survey, sampling analysis and appropriate drilling project were carried out to investigate and evaluate the study area, focusing on the analysis of the distribution characteristics, anomaly characteristics and uranium-radium content characteristics of aerial emission anomalies in the study area. On this basis, the origin of uranium anomalies is analyzed, which provides clues for further exploration of sandstone uranium deposits in this area.