摘要
豫西洛宁龙门店银铅锌与区域性滑脱拆离断层活动密切相关,在早期韧性剪切带的基础上,成矿期多次叠加了脆性断裂和含矿热液活动。通过对龙门店银铅锌矿碳氧同位素的组成分析,认为龙门店银铅锌矿δ(^(13)CVSMOW)值相对均一,分布范围介于-7.10×10^(-3)~0.90×10^(-3),平均-1.28×10^(-3);δ(^(18)OVSMOW)变化较大,介于9.21×10^(-3)~19.52×10^(-3),平均为13.37×10^(-3),证实了其成矿流体来源于深部岩浆热液和地层双重作用,后期有大气降水的加入,具有趋向沉积有机物分布的特征。
Longmendian Ag-Pb-Zn deposit in Luoning county of the west Henan Province are closely related to regional detachment fault activity.During the metallogenic period brittle faulting and ore fluid multiply overprinted on the early ductile shear zone.Analysis of C and O isotopic composition of the Ag-Pb-Zn deposit shows that theδ(^(13)CV-SMOW)values are relatively uniform,ranging from-7.10×10^(-3) to 0.90×10^(-3),with an average of-1.28×10^(-3).δ(^(18)OV-SMOW)varies greatly,ranging from 9.21×10^(-3) to 19.52×10^(-3),with an average of 13.37×10^(-3).The synchronous changes of carbon and oxygen isotopes indicate that the ore fluid composed of deep magmatic hydrothermal solution,formation water and late meteoric water.It is characteristic of tendency of sedimentary organic mater distribution.
作者
王杰
王小高
程宝成
丁世先
谢克家
王培培
WANG Jie;WANG Xiaogao;CHENG Baocheng;DING Shixian;XIE Kejia;WANG Peipei(Henan province nonferrous metal geological exploration institute, Zhengzhou 450052, China;Henan province non-ferrous metal deep prospecting and exploration technology research key laboratory, Zhengzhou 450052, China;The first geological brigade of Henan nonferrous metals geology and mineral resources bureau, Zhengzhou 450016, China;Centralsouth bureau of China metallurgical geology bureau, Wuhan 430081, China)
出处
《地质找矿论丛》
CAS
2021年第2期165-170,共6页
Contributions to Geology and Mineral Resources Research
基金
河南省国土资源地质矿产科技攻关项目(编号:2010-61-4)资助。
关键词
银铅锌矿床
碳氧同位素
龙门店
河南省
Lead-zinc deposit
Carbon and oxygen isotopes
Longmendian
Henan province
