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安徽庐江泥河铁矿的发现及意义
引用本文:吴明安,汪青松,郑光文,蔡晓兵,杨世学,狄勤松.安徽庐江泥河铁矿的发现及意义[J].地质学报,2011,85(5):802-809.
作者姓名:吴明安  汪青松  郑光文  蔡晓兵  杨世学  狄勤松
作者单位:安徽省地质调查院
基金项目:中国地质调查局国土资源大调查项目(编号1212010631701)资助的成果
摘    要:泥河铁矿是在玢岩铁矿模式、大型矿集区成矿理论的指导下,通过系统分析和研究庐枞地区成矿地质条性和成矿规律,选择1:5万航磁异常与重力异常套合地区,在1:1万地磁测量基础上,利用钻探对磁异常进行验证而发现的,这一发现是长汀中下游地区近20年来找矿的重大突破之一.勘探成果表明,泥河铁矿是一个由大型磁铁矿、大型硫铁矿、中型硬石...

关 键 词:重磁异常  找矿标志  找矿方向  泥河铁矿  庐江
收稿时间:2011/3/29 0:00:00
修稿时间:2011/4/18 0:00:00

The Finding and Exploration Model of the Nihe Iron Deposit in Lujiang, Anhui
wumingan and ZHANG Yiyong,WANG Keyou,FAN Yu,WANG Longyun,WEI Guohui,CHE Yingdan.The Finding and Exploration Model of the Nihe Iron Deposit in Lujiang, Anhui[J].Acta Geologica Sinica,2011,85(5):802-809.
Authors:wumingan and ZHANG Yiyong  WANG Keyou  FAN Yu  WANG Longyun  WEI Guohui  CHE Yingdan
Institution:Geological Survey of Anhui Province
Abstract:Absract: Under guidance of the Porphyrite Iron Deposit Model and the metallogeny theory of the large-scale ore concentrated area, we carry systematic researches on the metallogenic characteristics and the regularity. The Nihe iron deposit is founded by the exploration drilling to the magnetic anomaly after the 1:10000 geomagnetic survey on the overlap region between the 1:50000 aeromagnetic anomaly and 1:50000 gravity anomaly. The finding of the Nihe iron deposit is one of the significant discoveries in the middle-lower reaches of the Yangtze river in recent 20 years. Results of exploration shows that the Nihe iron deposit is a combined deposite consist of one large-scale magnetite ore deposit, one large-scale magnetite-pyrite ore deposit and one medium-scale anhydrite ore deposit. The host rocks of the deposit, which have intensive alteration, are volcanoclastic rocks and diorite porphyrite in the lower segment of the Zhuanqiao formation upper Jurassic. The ore bodies are controlled by the doming of the diorite porphyrite intrusion. The Nihe iron deposit is genetically classified into the Porphyrite Iron Deposit. According to the mineral-Forming conditions and the aeromagnetic- gravity anomaly, the Luzong area is benefit for the further exploration. The southeastern region of the Nihe deposit, the region between the Nihe and Luohe deposit and Fanmushan-Yijinqiao region are the important regions for the iron exploration in the future.
Keywords:Geomagnetic and Gravity Anomaly  Prospecting Criteria  Prospecting Direction  Nihe Iron Deposit  Lujiang
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