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近年来,随着某区大面积火山岩的发现和对矿化本质了解程度的加深,才认识到广泛发育于该区的钠交代型铀矿化和火山岩存在着成生联系,其成矿物质即来源于火山活动的演化产物。现试证如下:一、某区钠交代型铀矿化有着同一(统一)深部源该区钠交代型铀矿化点带星罗棋布,它们分布于不同构造部位、不同时代(志留纪、泥盆纪)的不同岩性(不同成份的砂岩、砾岩以及安山岩、闪长玢岩、流纹质凝灰熔岩、煌斑岩等)之中(表1),但是其控矿因素和所经历的蚀变和矿化过程几乎完全一样。例如,它
In recent years, with the discovery of large-area volcanic rocks in a certain area and the deepening understanding of the nature of mineralization, it has been realized that there is a close relationship between sodium-exchanged uranium mineralization and volcanic rocks widely developed in this area. The metallogenic material Evolved from volcanic activity. The test is as follows: First, a region of sodium metasomatic uranium mineralization has the same (unified) deep source of sodium metasomatic uranium mineralized point of the area dotted, they are distributed in different tectonic parts, different times (Silurian, Devonian (Table 1) with different lithologies (sandstone, conglomerate, andesite, diorite, rhyolite tuff, lamprophyre, etc.) with different lithologies (Table 1) Alteration and mineralization process is almost exactly the same. For example, it