相山铀矿田矿体分布规律研究新进展

New Progress in the Study of Ore Body Distribution in Xiangshan Uranium Ore Field

相山矿田是我国典型的热液型铀矿田,自1957年在该地区发现航空伽马异常以来,相继发现横涧、邹家山、沙洲等近30个铀矿床。近年来,该矿田的勘查工作又取得了一系列重要进展,在一些矿床之间发现了大量新的工业矿体,而矿床之间似乎没有明显的分界标志,铀矿体成群成带分布。虽然相山矿田铀矿体的成因研究成果较多,但对铀矿体分布规律的研究依然缺少整体上的总结。为查明矿体分布规律,对新老资料进行了再次分析,通过探采资料的综合对比,发现相山矿田铀矿体分布具有较明显的规律性,即矿体沿水力压裂构造分布,矿体受小岩体形态控制,矿体集中产于不同岩性接触带附近。

Xiangshan ore field is a typical hydrothermal uranium ore field in China.Since the discovery of airborne gamma anomaly in 1957,nearly 30 uranium deposits such as Hengjian,Zoujiashan and Shazhou have been found one after another.In recent years,a series of important progress has been made in the exploration of the ore field.A large number of new industrial ore bodies have been found between ore deposits.There seems to be no obvious boundary mark in ore deposits,and uranium ore bodies are distributed in groups and zones.Although there are many achievements in the research on the genesis of Xiangshan ore field,the research on the distribution law of uranium ore bodies in the ore field is still lack of overall summary.This work carried out secondary development of new and old data aiming to find out the distribution law of the ore bodies.Through the comprehensive comparison of exploration and mining data,it shows that the distribution of uranium ore bodies in Xiangshan ore field has obvious regularity,that is,the ore bodies are distributed along the hydraulic fracturing structure,the ore bodies are controlled by the shape of small rock mass,and the ore bodies are concentrated near the lithologic contact zone.