鄂东南地区东西断裂带动力学及地球化学特征  

CHARACTERISTICS OF DYNAMICS AND GEOCHEMISTRY OF MAOPU--LIANGJIANQIAO E-W FAULTED ZONE IN SOUTHEASTERN HUBEI

作　　者：杨明银 崔斌[2] 魏世昆 张万平 李享洲 

机构地区：[1]湖北省地质调查院 [2]中国地质大学 [3]鄂东南地质大队 [4]湖北省地质科学研究所

出　　处：《湖北地矿》2001年第2期3-10,共8页Hubei Geology & Mineral Resources

基　　金：湖北地勘局科技发展基金资助项目

摘　　要：以毛铺—两剑桥东西断裂带构造解析入手 ,分析其动力学与地球化学特征 ,揭示其控岩控矿意义。与大中型铜钨钼铅锌银矿相对应 ,出现差应力高值区。构造岩中的流岩比N =3.4～0 .68,反映出断裂活动过程中有较多的流体参与 ;在断裂带的不同地段 ,Pb、Zn、As、Sb、Hg。Starting with the tectonic analysis, this paper analyses the characteristics of the dynamics and geochemistry of Mopu-Liangjianqiao E-W faulted zone and reveals its rock-control and ore-control significance. The higher differential stress values are distributed in the large-medium scale Cu, Wo-Mo, Pb-Zn-Ag ore districts. The ratio of the fluid vs. rock (N) is 3.4-0.68, which reflects that a large amount of the fluid existed in process of the faulted activities. At the different sections of the faulted zone, the ore-forming elements such as Pb, Zn, As, Sb, Hg, Au, etc. were enriched.

关 键 词：东西断裂带 动力学 地球化学 湖北 控岩作用 控矿作用 断裂活动 

分 类 号：P542.3[天文地球—构造地质学] P59[天文地球—地质学]