铀矿床地质阿利盖特河地区的地层主要由纳纳比和尼伯沃两组杂岩构成,其周围是下元古代变质岩层,并过渡到未变质的沉积层。Rb-Sr 年龄测定表明,这两层杂岩的地质史是不相同的。纳纳比杂岩在该地区中央地区延伸超过3500平方公里,其中心部分是花岗岩类、淡片麻岩和混合岩。其上覆盖下元古代沉积物,其周围为变质 Uranium Deposits The strata in the Aligate River area are mainly composed of two complexes of Narnia and Nibowo, surrounded by the Lower Paleogene metamorphic rocks and transitioning to an unmetamorphosed sedimentary formation. Rb-Sr dating shows that the geological history of the two layers of complex rocks is different. The Nunnibi complex extends over 3,500 square kilometers in the central part of the region, centered on granites, paleodendron and migmatites. It is covered with metamorphic sediments, the surrounding of metamorphism