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本文在综合整理中国东南沿海一带区域物化探资料的基础上,对羊洲-下桐市-火轩市-酒港一带中生代火山岩铀矿化与深层构造和物化探异常的关系进行了研究。讨论了莫霍面、区域重力场和深层构造的关系;重力梯度带与火山岩铀矿的关系;重力梯度带内浅部重力异常与铀矿的关系。提出了中生代火山岩型铀成矿带与上地幔变异带、重力梯度带之间有密切相关的分布规律,重力梯度带内的浅部重力异常可以确定铀矿的空间位置等看法。此外,水系沉积物的分析结果也反映出Cu、Pb、Zn、Ag以及Ni、Cr、Co等元素的异常,在重力梯度带内有着特定的展布规律,其空间分布与铀元素也具有密切的联系。
Based on the comprehensive geophysical and geochemical data in the southeastern China coastal area, this paper studies the relationship between uranium mineralization and deep structure and geophysical and geochemical anomalies of Mesozoic volcanic rocks in Yangzhou-Xiaotong-Huoxuan-Liugang area. The relationship between Moho, regional gravitation field and deep structure is discussed. The relationship between gravity gradient zone and volcanic uranium deposit and the relationship between shallow gravity anomaly and uranium deposit in gravity gradient zone are discussed. The Mesozoic volcanic-type uranium metallogenic belt is closely related to the upper mantle variable zone and gravity gradient zone, and the shallow gravity anomaly in the gravity gradient zone can determine the spatial location of uranium ore. In addition, the analysis results of sediments also reflect the anomalies of Cu, Pb, Zn, Ag, Ni, Cr, Co and other elements. There is a certain distribution law in the gravitational gradient zone, and its spatial distribution is also closely related to the uranium element Contact.