摘要
通过对老厂银铅锌多金属矿床地质地球化学特征的系统总结,并与相关海相火山岩块状硫化物矿床的对比,认为矿床期后岩浆热液叠加特征明显,矿体直接容矿围岩为火山-沉积岩,矿床属火山-沉积岩容矿的块状硫化物矿床。为介于典型的火山岩容矿的块状硫化物矿床(VHMS)和典型沉积岩容矿的海底喷气沉积矿床(SEDEX)之间的过渡类型,其矿化特征与新疆可可塔勒铅锌矿床(伊比利亚型)相类似。
Described in this paper are the geological-geochemical characteristics of the Laoehang large-scale Ag- Pb-Zn polymetallie deposit, which are compared with those of submarine volcanic-hosted massive sulfide deposits. The ore deposit has the characteristics of magma hydrothennal superimposition-reformation metallogenesis and the ore bodies hosted in volcanic-sedimentary rocks. It is suggested that the deposit belongs to a volcano-sedimentary rock-hosted massive sulfide deposit; and its mineralization characteristics are similar to those of the Keketale lead-zinc deposit （Iberian-type）. Therefore, it is suggested that the Laoehang deposit is a transitional subtype between a volcanic rock-hosted massive sulfide deposit （VHMS） and a typical sedimentary exhalative deposit （SEDEX）.
出处
《矿物学报》
CAS
CSCD
北大核心
2007年第3期360-365,共6页
Acta Mineralogica Sinica
基金
中国科学院地球化学研究所与云南澜沧老厂铅矿合作项目
关键词
银铅锌多金属矿床
矿床地质地球化学
老厂
silver-lead-zinc polymetallic deposit
geological and geochemical characteristics of the ore deposit
ochang, Yunnan
