铜仁大硐喇汞矿田中锌矿分布规律及找矿远景

Distribution Law of Zinc Ores at Dadongla Mercury Ores Field,Tongren and Predict for Exploration

简要分析区域成矿地质背景、地层构造及矿床地质特征,重点论述汞矿田中锌矿分布规律。矿体分布于中寒武统敖溪组第五段二亚段,富集于背斜轴部、断层两侧,并受次级褶皱控制,其构造控矿明显,锌矿化与硅化、沥青化、白云石化、方解石化关系密切,探讨铜仁大硐喇汞矿田及相邻区具类似控矿地质条件的找矿远景。

Regional metallogenic setting, stratigraphic structure and geological characteristic of the deposit are studied generally and distribution law of the zinc ores in the mercury ores field is elucidated emphatically. The orebody is distributed in second sub - segment of the fifth segment of Middle Cambrian Aoxi Formation and is concentrated at both sides of anticline axis and fault, as well is subject to the secondary fold, which is evident under control of structure, in which the zinc mineralization is closely associated to silicification, bituminization, dolomitization and calcitization. Predicts for exploration of Dadongla mercury ore field and its adjoining areas that possess of similar ore - controlling geological condition are analyzed .