赣东北资溪县架上钨钼矿地质特征及找矿标志

Geological features and prospecting criteria of Jiashang Tungstenmolybdenum deposit in Zixi County, Northeastern Jiangxi Province

架上钨钼矿位于赣东北地区。本文对其矿床地质特征、矿体特征、矿石特征及含矿石英脉特征等进行初步调查与统计,架上钨钼矿床已知矿体均产于下震旦统尚源群变质岩系石英脉内,经统计得出含矿石英脉总体产状为173°∠83°,矿石类型为黑钨矿石英脉型和黄铁矿-辉钼矿-黑钨矿石英脉型两类,围岩蚀变类型主要为硅化、绢云母化、黄铁矿化、云英岩化,萤石化和绿泥石化等。通过分析得出,下震旦统尚源群变质岩系地层、总体走向为83°石英脉及硅化、绢云母化,云英岩化和萤石化等蚀变类型是矿区内主要的找矿标志。

The Jiashang tungsten molybdenum deposit is located in Northeastern Jiangxi Province.In this paper,We preliminary investigate and count the ore deposit geological features,ore body characteristics,ore characteristics and the characteristics of ore bearing quartz vein.The known ore bodies of Jiashang tungsten molybdenum deposit occur in the quartz vein of metamorphic rock series of the Lower Sinian Shangyuan Group.The overall occurrence of ore-bearing quartz veins is 173°∠83°,the ore types are wolframite quartz vein type and pyrite-molybdenum-wolframe quartz vein type,the main types of surrounding rock alteration are silicitization,sericitization,pyritization,greisenization,fluorite-lithify and chloritization.Through analysis,it is concluded that the main prospecting criteria in the mining area are metamorphic rock series of the Lower Sinian Shangyuan Group,the overall strike of 83°quartz veins and alteration types such as silicification,sericitzation,greisenization and fluorite-lithify.