巴什布拉克铀矿床形成机理及其找矿标志

巴什布拉克铀矿床是位于中国西部喀什凹陷与油气次生还原有关的铀矿床。从地球化学角度分析铀矿化特征、成矿作用和形成机理,认为本矿床的形成和下白垩统地化分带现象主要是由油气中的CH4等还原介质引起的,同时,液态石油和地沥青还原作用以及黏土矿物的吸附作用也起到了积极作用,并尝试解释成矿阶段,总结找矿标志。

Metallogenic mechanism and its prospecting guides of Bashibulake uranium deposit

Bashibulake uranium deposit is a deposit closely associated with oil-gas secondary reduction,which is located in Kashgar Sag in the west of China. Through analyzing the uranium mineralizing characteristics,ore formation and metallogenic mechanism from the point of geochemistry,it is considered that the formation of the deposit and the geochemical zonation in Lower Cretaceous are mainly caused by the reducing media such as CH4 in the oil and gas. At the same time,the reduction of liquid petroleum and land pitch,absorption of clay minerals also play some positive role in the ore formation. It tries to explain the ore-forming stages of uranium deposits and summarize its prospecting guides.