分量化探法在砂岩型铀矿勘查中的研究与应用

Study on partial extraction of uranium and associated elements and its application to geochemical prospecting for locating sandstone-type uranium deposit

通过理论和野外、实验室方法试验研究 ,初步建立了寻找砂岩型铀矿的分量化探新方法。应用建立的新方法 ,先后在两个已知砂岩型铀矿床和 5片未知区 ,开展了寻找砂岩型铀矿的试验和预测研究。经上述 5片未知区施工几十个钻孔检验 ,获得了较好的找矿验证和预测效果。初步研究结果表明 ,应用该项技术寻找砂岩型铀矿基本是可行、有效的 ,具有好的应用和发展前景 ,有望发展成为我国勘查砂岩型铀矿较好的一种化探方法。

Based on the theoretic study and the study of field and laboratory methods,a new method of geochemical prospecting——partial extraction of uranium and associated elements has been preliminarily established.This new method has been tested and used as prognostic tool in 2 known sandstone-type uranium districts and 5 unknown areas.Examined by tens of drill holes in above-mentioned unknown areas the new method shows good prospecting and prognostic effect.Preliminary research achievements indicate that it is basically feasible and effective for locating sandstone-type uranium deposits.The method is of good potential in application,and may become one of prospective geochemical prospecting methods for locating sandstone-type uranuim deposits in China.