摘要
笔者从六个方面厘定了丰山有色金属矿田拆离滑脱构造：地层厚度变薄甚至缺失；界面处构造岩发育；岩体顺层分布；界面处含矿热液作用异常发育；界面性质鉴定；断层组合特征。研究了丰山矿田拆离滑脱构造特征；初步探讨了其形成机制。从三个方面研究了丰山矿田控岩控矿规律：构造的拆离和构造剥蚀作用形成了最佳成矿组合序列；有利的容矿（岩）构造；多期矿化叠加。
he decouplingdetachment structures of the nonferrous metal orefield in fengshan of Hubei Province are collated from six aspects as follows:the depth of strata is pinching and even absence; the tectonites often developed along their boundaries; the distribution of dikes is bedding; the mineralization of orebearing hydrothermal solution near the boundary is exceedingly development; the identification of these boundary features; and the characteristics of fault complex. The authors have studied the characteristics of decouplingdetachment structures of Fengshan orefield and conducted the preliminary study to its formation mechanism. The authors have studied the rockorecontrol law of Fengshan orefield from three aspects as follows: the formation of optimum sequence of oreforming assemblage is due to the tectonic decoupling and tectonic denudation; the favourable host(rock) stucture; the telescope of multistage mineralization.
出处
《河南地质》
1998年第2期87-93,共7页
Henan Geology
关键词
有色金属矿田
拆离滑脱构造
控岩
控矿
Fengshan nonferrous metal orefield, the decouplingdetachment, the rockorecontrol structure
