福建安溪潘田矿区铁矿地质特征及找矿标志

Geological Characteristics and Prospecting Indicators of Pantian Iron Deposit in Anxi County,Fujian Province

潘田铁矿位于永梅晚古生代凹陷带的东南缘,政和—大埔大断裂的东南侧。铁矿体贮存于林地组和黄龙组—栖霞组接触带界线及其附近,产于角岩化粉砂岩与矽卡岩化灰岩之间,其形态、产状受地层和断层控制。与铁矿体关系密切的蚀变主要是钙铁-钙铝石榴石矽卡岩。初步研究表明该铁矿床为热液接触交代型磁铁矿床。

Pantian Iron Mine is located in the southeast margin of Yongmei late Paleozoic depression and the southeast side of Zhenghe-Dapu major dislocation.The iron ore bodies are stored in the contact zone boundary between Lindi formation and Huanglong-Qixia formation and its vicinity,and are located between hornstone siltstone and skarn limestone.The alteration is mainly calcium iron-calcium aluminum garnet skarn which closely related to the iron ore body.The preliminary study shows that the iron ore deposit is hydrothermal contact metasomatic magnetite deposit.