摘要
在地质调查的基础上,介绍了华北陆块南缘近期发现的栾川赤土店Zn-Pb矿床地质特征,测定了矿床S、Pb、H、O等同位素、稀土元素、流体包裹体成分和温度。研究表明矿床具有鲜明的层控特征,含矿地层为新元古界栾川群煤窑沟组,矿体产在碎屑岩与碳酸盐岩转换部位,总体呈层产出,并与含矿地层形成同步褶皱,附近又有桶柱状矿体与层状矿体相连,矿石成分层明显,矿石为块状-层纹状构造,矿体底板蚀变强烈。作者认为该矿床应属于SEDEX型矿床。
This paper gives an introduction of the geological characteristics of the Chitudian Lead-zinc-（silver） deposit in Luanchuan County, Henan Province, which is located in the South Margin of North China Craton and discovered recently. It also presents the data of S, Pb, H, O isotopes, trace elements, and chemical compositions and microthermometry of fluid inclusions of the deposit. It＇s suggested that the ore body is strata-bounded, and the host strata is Meiyaogou Formation of Luanchuan Group in Neoproterozoic. The ore body, Which is stratum-like, is located where the clastic rocks converted to carbonate rocks, and sin-folded with the host rock. And also there is a column-like ore bodies jointed with the stratum-like ones. And in view of the fact that minerals form different assemblage layers, ore is massive to bedded structure and strongly altered footwall. We proposed that it is a SEDEX type ore deposit.
出处
《地质调查与研究》
2007年第4期263-270,共8页
Geological Survey and Research
基金
国土资源大调查项目:河南卢氏-栾川地区铅锌银矿评价(199910200227)
