510地区,为正在勘探的铀矿床分布地区之一。笔者曾在此工作多年,积累了一些资料。这里着重对该地铀矿生成的构造地质特征及其与铀矿的关系提出几点粗浅的看法,供有关同志参考。由于笔者水平所限,谬误在所难免,诚望批评指正。一、地质简况区内出露的地层,主要为奥陶系、志留系、泥盆系、石炭系、二叠系、侏罗系和白垩系(图1)。奥陶系前人亦称前志留系,为一套浅—中变质的中酸性火山岩、火山碎屑岩和少量正常沉积岩,同位素年龄为457百万年。志留系前人称做“白龙江群”,为一套巨厚的浅 510 area, one of the areas where uranium deposits are being explored. I have worked in this for many years, accumulated some information. Here focused on the tectonic and geological characteristics of the formation of uranium deposits in the area and its relationship with uranium deposits put forward some superficial views for the comrades for reference. Due to the author’s limited level, fallacies are inevitable, sincerity and criticism correct. I. Geological Profile The strata exposed in the area are mainly Ordovician, Silurian, Devonian, Carboniferous, Permian, Jurassic and Cretaceous (Figure 1). Ordovician predecessors, also known as the former Silurian, is a set of shallow-medium metamorphic volcanic rocks, pyroclastic rocks and a small amount of normal sedimentary rocks, the isotope age of 457 million years. Silurian formerly known as the “Bailongjiang group,” a thick set of shallow