潮水盆地铀成矿水文地球化学研究

The Study on Uranium Ore-forming Hydrogeochemistry of Chaoshui Basin

在分析潮水盆地自然地理、地质背景及水文地质特征的基础上,对盆地铀成矿水文地球化学特征进行了探讨。结果表明:潮水盆地为一渗入型自流水盆地,其深层地下水中铀存在形式为UO2(CO3)2-2nn;从盆地边缘到盆地中心具有明显从氧化环境到还原环境的水文地球化学分带特征,水中铀经历了由溶滤迁移到还原沉淀的矿化过程;在盆地北缘的照壁山—白芨芨、阿右旗—陶家井地区,西南部的平易—平山湖地区具备十分有利的铀成矿条件和良好的铀成矿远景。

On the basis of analytsis on physical geography, geological setting and hydrogeology characteristics, the uranium mineralizing hydrogeochemistry characteristics of Chaoshui basin are studied in this paper. Studying results indicate that the basin of Chaoshui is a infiltrating artesian water basin, and uranium species from deep groundwater is UO_2(CO_3)^(2-2n)_n. Hydrochemistry zoning from oxidizing environment to reducing environment are obviously occurred and uranium ore-forming process was performed through in groundwater from edge to center of the basin. Very beneficial uranium mineralizing condition and good prospective area from Zhao Bishan to Bao Jiji, from A Youqi to Tao Jiajing in north of the basin, from Pingyi to Ping are studied in existence Shanhu in southwest of the basin.