关键词: 可地浸砂岩型铀矿, 成矿条件, 航空放射性测量资料, 铀矿勘探

Abstract:

The insitu leachable sandstone-type uranium deposit is the main direction in the uranium exploration for the nuclear-powered nations in the world at the present time.Several features mark this type of uranium deposit,i.e.the low cost,the high economic returns and the low comtamination.The processing and analysis of the airborne radiometric data demonstrate that there is the relatively rich uranium resource and the good metallogenic condition for the sandstone-type uranium deposit in the Hailaer Basin.Many features are in favor of the forming of the uranium deposit,which include the thick main sedimentary-layers of the deposit,the much more organic matter,the development of the favorable sedimentary-facies zones of this deposit and so on.The Hailaer Basin is marked by an infiltrative free-flowing water basin with the perfect mechanism of supply-flow-drainage and hydro-dynamic conditions,which is also in favor of the forming of the uranium deposit.All above features of the Hailaer Basin express a good foreground for the exploration and exploitation of the uranium deposit.And this study shows that the airborne radiometric technique is an effectve exploration mean.

Key words: uranium deposit of the in-situ-leachable sandstone type, metallogenetic condition, airborne radiometric data, the Hailaer Basin