安徽淮北徐楼铁矿地质地球物理特征  

GEOLOGICAL AND GEOPHYSICAL FEATURES OF THE XULOU IRON ORE DEPOSIT IN HUAIBEI CITY

作　　者：吴金联 WU Jin-lian(No.325 Unit,Bureau of Geology and Mineral Exploration of Anhui Province,Huaibei,Anhui 235037,China)

机构地区：[1]安徽省地质矿产勘查局325地质队,安徽淮北235037

出　　处：《安徽地质》2021年第1期35-39,共5页Geology of Anhui

摘　　要：通过对安徽淮北徐楼铁矿的地质地球物理特征分析,总结发现低视电阻率异常区、重力梯度带、高地磁异常与铁矿赋存区域对应良好。该矿区地球物理特征明显,矿体产于奥陶系下统萧县组(少量马家沟组)碳酸盐岩(大理岩)与强烈钠化的闪长(玢)岩的接触带,特别是在分叉入侵的岩枝与萧县组钙镁质碳酸盐岩接触带极易成矿,对发现该类型矿床具有一定的参考意义。Based on analysis of geological and geophysical features of the Xulou iron deposit in Huaibei City,it can be concluded that the anomaly of low apparent resistivity,gravity gradient zone and anomaly of high geomagnetic strength correspond well with the ore-hosting zone.The Xulou iron deposit has remarkable geophysical features and occurs in the contact zone between the carbonate rock(marble)of the Xiaoxian Formation(and a small part of of the Majiagou Formation)of Lower Ordovician and the diorite porphyrite with strong sodium alteration.Mineralization is especially developed on the upper and lower sides of the contact zone between the bifurcated intrusive offshoots and the calcium-magnesium carbonate rock of the Xiaoxian Formation.

关 键 词：地质地球物理特征 徐楼铁矿 重力异常 磁异常 

分 类 号：P631[天文地球—地质矿产勘探] P618[天文地球—地质学]