相山矿田林头-苔洲铀成矿地质特征及远景分析

Mineralization Geological Conditions and Prospective Analysis of Lintou-Taizhou in Eastern Xiangshan Ore Field Uranium

林头-苔洲地区处于相山矿田东部,通过总结研究前人在该地区的工作成果,分析该地区成矿地质条件;研究该地区矿石物质成分、矿物共生组合、矿石结构构造、围岩蚀变等特征,认为林头-苔洲地区铀矿床属于中低温碱交代铀绿泥石型,铀矿化主要受南北向F2张扭性断裂及次级构造裂隙的控制;苔洲地区铀矿体主要产出于砂岩层并受砂岩层位控制,娄岭地区铀矿化与第一次火山旋回花岗斑岩的关系密切;通过对林头-苔洲地区工作程度的研究,发现苔洲地区受砂岩层位控制铀矿体,娄岭地区与铀矿化关系密切的第一火山旋回次花岗斑岩、沿火山岩层间离张构造充填的斑状花岗岩等多个成矿有利地段还没有进行较系统的工作,具有非常大的找矿远景。

Abrstract ： Lintou-Taizhou is located in eastern Xiangshan uranium ore field, geological conditions of the region is analyzed by summarizing previous researches in the area. It was considered that Lintou-Taizhou belongs to the low- temperature alkali metasomatism uranium chlorite types according to the characteristics of ore material composi- tion, mineral assemblages, ol~ texture structure, and wall rock alteration; Uranium mineralization mainly con- trolled by the north-south F, shear fractures and secondary tectonic fractures; The Taizhou＇ s uranium orebodies mainly outputted sandstone and controlled by sandstone horizon, uranium mineralization in Louling was close to the first volcanic cycle granite porphyry ; Through the study of the extent of Lintou-Taizhou, it was found that ura- nium ore bodies were controlled by sandstone formation in Taizhou, the first volcanic cycle granite porphyry close to uranium mineralization in Louling, the porphyritic granite constructed and populated along volcano Strata, there are not systematic work in multiple favorable areas of mineralization, and there is great prospective for the pros- pecting. Key Words： uranium; geological conditions; prospecting perspective ; Lintou-Taizhou