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划分出具有矿化作用标志的面积是局部预测阶段的主要任务之一。对于铀矿床来说,也像很多其它热液矿床一样,常常把交代蚀变岩(粘土岩、黄铁细晶岩和霏细岩等)的发育区看作是矿化的标志。但是,在热液矿床(包括热液铀矿床)上,交代岩常常是矿前产物,而矿化常常与矿化作用的较晚阶段有关。可以认为,细脉浸染状矿化(矿前、矿期和矿后的)是在这些环境中矿化作用(或者热液作用的成矿阶段)显示的可靠标志。
It is one of the main tasks of the local forecasting stage to divide the area with the sign of mineralization. For uranium deposits, like many other hydrothermal deposits, development zones that account for altered rocks (clay rocks, pyroxene and feldspartite, for example) are often used as hallmarks of mineralization. However, on hydrothermal deposits, including hydrothermal uranium deposits, metasomatic rocks are often pre-ore products, and mineralization is often associated with later stages of mineralization. It is believed that veinlet disseminated mineralization (pre-mine, post-mine and post-mine) is a reliable indicator of mineralization (or mineralization in hydrothermal processes) in these environments.