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在铀矿的区凋、普查工作中,发挥水化学找矿的优势,提高找矿效果的关键是如何正确地解释、评价所找到的水异常。为此就必须弄清工作区内铀矿与地下水放射性之间的关系。本文根据南岭南部地区多年的水化找矿资料,从水文地球化学角度阐明了地下水放射性在空间上的变化规律和放射性水的分市特征。从已知铀矿床水异常特征分析中提出了矿致水异常的五项标志,这对我国南方潮湿大陆地区水异常的解释与评价有着普遍的实用意义。
During the withering and census of uranium mines, the key to improve the ore prospecting is to explain and evaluate the water anomalies found correctly. To this end, it is necessary to understand the relationship between the uranium mine and the radioactivity of groundwater in the work area. Based on years of hydrometeorological prospecting data in the southern part of Nanling, this paper clarifies the spatial variation of radioactivity of groundwater and the subdivision of radioactive water from the perspective of hydrogeochemistry. Based on the analysis of the anomaly characteristics of uranium deposits, five indicators of water anomalies are proposed, which have universal practical significance for the interpretation and evaluation of water anomalies in the humid continental areas of southern China.