摘要
小康锰银多金属矿受下三叠系溪口组地层、断裂构造破碎带和花岗斑岩接触带控制,氧化锰(银)矿床属“淋积型”,含锰层经热液叠加改造和风化淋滤后在层间断裂破碎带中富集成矿;铜铅锌矿体分布于酸性偏中性的花岗岩体外接触带中(部分为层状夕卡岩),呈浸染状赋于夕卡岩中或沿裂隙充填成矿。主要围岩蚀变有夕卡岩化和角岩化。该矿床从上至下具Mn(Fe)-Ag,Pb,Zn-Cu,Pb,Zn的垂直分带规律。
Xiaokang Mn-Ag polymetal deposit is controlled by Xikou Formation of Lower Triassic Systern, cataclastic zone and contact zone of granitic porphyry. The oxidized Mn-Ag polymetal deposit is formed by leaching accumulation. Exposing to hydrothermal fluid overprinting and reworking and weathering and leaching of Mn-bearing strata leads to enrichment of the ore materials in interformational cataclastic zone where the ore occurs. Cu-Pb-Zn ore bodies are located in outer contact zone of intermediately acidic granite（partially layered skarn） and the ore occurs as dissemination and fracture-filling. Skarnization and hornflization are the main alterations. The deposit is characterized by vertical Mn（Fe）-Ag,Pb,Zn- Cu, Pb, Zn zonation.
出处
《地质找矿论丛》
CAS
CSCD
2006年第B10期66-69,共4页
Contributions to Geology and Mineral Resources Research
基金
国家矿产资源补偿费矿产勘查项目
关键词
小康锰银多金属矿
地质特征
垂直分带
福建省
Xiaokang Mn-Ag polymetal ore
geological characteristics
vertical zonation
Fujian province
