湖北省鄂东地区金井咀矽卡岩型金矿地质特征及其成因

金井咀金矿位于大冶市区南约2km,处于长江中下游成矿带,区域上由于燕山期岩浆侵入到三叠世大冶组石灰岩中热液交代成矿。该矿床与造山型金矿具有相似的地质地球化学特征,具有典型的矽卡岩型矿床特征,金矿控矿受地层、断裂构和隐伏岩浆活动影响。据其矿物组合及矿石组构特征,将矿床成矿作用的过程划分为三个成矿期,分别为矽卡岩期、硫化物-碳酸盐期和表生期。由于矿区具有典型的矽卡岩型矿床特征和完整的成矿过程,将对该地区的其他矽卡岩型矿床的研究提供参考。

The geological characteristics of Jinjingzui skarn gold deposit and its causes in the east of Hubei province

Jin jing zui gold deposit is located about 2 kilometers south of Daye city,belongs to the Yangtze River metallogenic belt.Skarn is genetically related to magmatic intrusion into the Triassic Daye Formation limestones in the hydrothermal mineralization.The orogenic gold deposits in similar geological and geochemical characteristics,with the typical features of skarn deposits,the features of ore-control structure was the formation,structure,and buried fault of magmatic activity.According to its mineral composition and fabric characteristics of ore,ore-forming process of the deposit by the three mineralization of skarn stage,respectively,sulfide-on and supergene carbonate phase.Because mine has the typical features of skarn deposits and complete mineralization process,the other in the region skarn deposits provide references.