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本文介绍罗马北部的钾质碱性火山岩中铀的成矿作用,它为分析构造、火山作用和成矿的关系提供一个好的例子。在与蒂勒尼安(Tyrrhenian)盆地的形成有关的地垒和地堑区,深源的酸性火山产物大部分沿地垒分布,而钾质碱性火山产物处于深的地堑中。低品位的,然而延伸很长的铀矿床产于地堑中,其成因与浅成作用有关。文中还讨论了铀与氟矿床之间的生成关系,它们是碱性火山岩区唯一已知的成矿富集,也与其他(如汞和锑)成矿作用做了比较,后者在近代酸性火山作用发育的地垒带是很特殊的。
This paper presents the mineralization of uranium in potassic alkaline volcanic rocks in northern Rome, providing a good example of the relationship between tectonics, volcanism and mineralization. In the basement and graben areas associated with the formation of the Tyrrhenian basin, most of the deep-source acidic volcanic products are distributed along the basement, while the potash-alkaline volcanic products are in deep graben. Low-grade, long-extended uranium deposits, however, originate in the graben, and their genesis is related to superposition. The relationship between uranium and fluorine deposits is also discussed. They are the only known metallogenic enrichment in alkaline volcanic rocks and are also compared with other metallogenic processes such as mercury and antimony. In the latter case, The basement belt with volcanic activity is very special.