地质与勘探2011，Vol.47Issue(4)：642-648,7.
广东凡口铅锌矿碳、氧同位素地球化学特征及其地质意义
Geochemical Charateristics of Carbon and Oxygen Isotope in the Fankou Lead-Zinc Deposit, Guangdong and Its Geological Impolications
摘要
Abstract
The Fankou lead-zinc deposit occurs in Devonian carbonate platform, and disputations about its genesis still exist. After systemic study of the carbon and oxygen isotope composition of rock and ore of ore-beating strata, it shows that fading alteration in purple sandstone and the phenomenon of dolomitizationin in limestone are closely related with basin brine. The δ^13C and δ^18O value of carbonate cement in fading altered sandstone are similar to carbonate mineral in ores, which is rather low. The δ^13C and δ^18O vaules of dolomitization limestone are between those in ores and carbonate mineral. The research shows that the carbon and oxygen isotope feature of basin brine and ore-forming fluid are analogy, and basin brine is closely related with metallogensis. So in many aspects,the Fankou deposit is more likely to shoe the characters of Mississipi Valley-type. The migration of brine which is alone the bottom of Devonian,lead to fading alteration in clasolite and dolomitizationin of upper limestone, which caused lead and zinc richment and mineralization.关键词
地球化学/碳同位素/氧同位素/热卤水/凡口铅锌矿床Key words
geochemistry/carbon isotope/oxygen isotope/hot brine/Fankou Lead-Zinc deposit分类
天文与地球科学引用本文复制引用
韩英,王京彬,祝新友,郭宁宁,李顺庭,王艳丽..广东凡口铅锌矿碳、氧同位素地球化学特征及其地质意义[J].地质与勘探,2011,47(4):642-648,7.基金项目
全国危机矿山找矿专项科研课题“湘南一粤北地区锡钨多金属矿床成矿规律总结研究”（20089927）资助. （）
