CAJ | 학술논문

376铀矿床为典型花岗岩型铀矿床，以矿岩时差巨大而闻名。到目前为止，对于铀的富集、活化、迁移过程的研究还不够完善。为了深入研究376矿床铀的来源及成矿过程中铀的活化迁移规律，以矿床的成矿物质来源为切入点，设计浸出实验，计算出铀的活化系数Kh＞1，说明铀在交代和热液蚀变作用活跃，岩石中的铀易被萃取、活化、运移，从而提高铀的浸出率。并在不同条件下对岩体和围岩进行浸出率对比，指出摩天岭花岗岩可活化铀的浸出率较高，围岩具有相对高的活化、运移铀的能力，在弱酸性的环境下铀更容易浸出。
376유광상위전형화강암형유광상，이광암시차거대이문명。도목전위지，대우유적부집、활화、천이과정적연구환불구완선。위료심입연구376광상유적래원급성광과정중유적활화천이규률，이광상적성광물질래원위절입점，설계침출실험，계산출유적활화계수Kh＞1，설명유재교대화열액식변작용활약，암석중적유역피췌취、활화、운이，종이제고유적침출솔。병재불동조건하대암체화위암진행침출솔대비，지출마천령화강암가활화유적침출솔교고，위암구유상대고적활화、운이유적능력，재약산성적배경하유경용역침출。
Uranium deposit 376 which is a typical granite type uranium deposit is known for the huge time gap of diagenesis -mineralization.So far, it is still not comprehensive about the study on the enrichment , activation and transfer of uranium .In order to study the sources of uranium as well as the activation and transfer rules of uranium in the mineralization process of deposit 376 deeply , the paper puts the sources of metallogetic material as the starting point , and designs the leaching experiment .It is found that uranium is active during metasomatism and hydrothermal , and the uranium in the rock is easily extracted , activated and migrated that improve the leaching rate of uranium by calculating the activation coefficient of U, Kh >1.The leaching rate is compared between the rock and surrounding rock under different conditions .It shows that the leaching rate of the activatable uranium in the grantie of motianling is relatively high , and the activation and migration ability of surrounding rock is relatively strong.The uranium in the acidic environment can leach easily .