【摘要】 通过对"帕米尔式"铁矿床的野外地质调查及成矿地质背景、矿床地质特征、矿床地球化学特征、成矿机制和找矿标志进行研究分析,发现该类型铁矿床的铁矿体矿体主要呈层状、似层状、透镜状赋存于下古生界马尔洋组的含铁岩系中,与围岩呈整合接触、互层产出,原生沉积层理清晰,沉积构造特征明显,矿石局部具热液、变质作用改造特征;并具有较为独特的膏铁建造特征,同时稀土元素分析结果表明,"帕米尔式"铁矿床具有海洋化学沉积特征,且与海底中基型火山活动密切相关,为一种新型的铁矿床。更多还原

【Abstract】 Based on the field geological survey of the Pamir-type iron deposit and the analysis of its metallogenic geological background,geological characteristics,geochemical characteristics,metallogenic mechanism and prospecting criteria,it is found that the orebodies of this type of iron deposit are mainly layered,layered and lenticular in the iron-bearing rock series of the Early Paleozoic Maeryang Formation and are in integrated and interbedded contact with the surrounding rocks.The primary sedimentary bedding of the deposit is clear,the sedimentary structure is obvious,the ore has hydrothermal and metamorphic alteration characteristics in some areas,and has a unique gypsum-iron formation characteristics.At the same time,the analysis of rare earth elements shows that the"Pamir"iron deposit has marine chemical sedimentary characteristics,and is closely related to the submarine medium-basic volcanic activity.It is a new type of iron deposit.更多还原