赣杭带广丰-江山地区地球物理特征及铀找矿方向

Geophysical characteristics and uranium Prospecting Direction in Guangfeng-Jiangshan area of Jiangxi-Hangzhou tectonic volcanic metallogenic Belt

广丰-江山地区地处赣杭构造火山岩成矿带中段。通过分析本区航空伽玛、地面伽玛、航磁及放射性水异常与铀矿化的关系,认为地球物理场异常与铀矿化存在紧密联系,也受构造控制,富铀地层是铀成矿的基础,构造为铀矿的富集提供了运移通道和储藏空间,提出对区内已有矿床加大勘探深度、攻深找盲,同时在江山-绍兴断裂带周边、铀异常点分布较为密集的石人底-石狮岗地区进行大比例尺铀异常排查工作。

Guangfeng-Jiangshan area is located in the middle section of the Jiangxi-Hangzhou tectonic volcanic metallogenic belt.Based on the analysis of the relationship between aeronautical gamma,surface gamma,aeromagnetism and radioactive water anomalies and uranium mineralization in this area,it is considered that geophysical field anomalies are closely related to uranium mineralization and are also controlled by structure.U-rich strata are the basis of uranium mineralization,which provides migration channels and storage space for the enrichment of uranium deposits,and puts forward that the exploration depth of existing deposits in the area is increased to search for hidden minerals,and at the same time,Around Jiangshan-Shaoxing fault zone.,large scale investigation of uranium anomalies were carried out in Shirendi-Shishugang area,where the distribution of uranium anomalies were searched.