CAJ | 학술논문

邯邢式铁矿是中国著名的铁矿类型之一.近年来,在邯邢地区采用深钻对白涧铁矿低缓磁异常区进行了验证,在孔深592.74～1 040.52 m处发现了厚度大、埋藏深、规模大、品位高的隐伏邯邢式铁矿,表明该区具有深部找矿的巨大潜力.通过对白涧矿区的综合找矿探测方法技术的应用研究和对白涧铁矿深部隐伏铁矿的预测分析,证实了高精度重、磁方法相结合是寻找该类铁矿最有效的方法.EH-4电磁测深方法通过探测深部隐伏岩体的起伏变化,进而预测和发现盲矿体,是一种间接预测隐伏矿分布的有效方法.针对邯邢地区地表及地下均存在不同程度的重、磁、电干扰,该研究加强了实地干扰源的详细调查和室内资料的相关滤波、圆滑处理、位场的转换、异常正反演解释的研究工作,认为加强赋矿地层、构造、岩浆岩、围岩蚀变和重、磁综合异常"五位一体"的深部综合找矿模式,是寻找邯邢式铁矿深部矿体的有效方法.
함형식철광시중국저명적철광류형지일.근년래,재함형지구채용심찬대백간철광저완자이상구진행료험증,재공심592.74～1 040.52 m처발현료후도대、매장심、규모대、품위고적은복함형식철광,표명해구구유심부조광적거대잠력.통과대백간광구적종합조광탐측방법기술적응용연구화대백간철광심부은복철광적예측분석,증실료고정도중、자방법상결합시심조해류철광최유효적방법.EH-4전자측심방법통과탐측심부은복암체적기복변화,진이예측화발현맹광체,시일충간접예측은복광분포적유효방법.침대함형지구지표급지하균존재불동정도적중、자、전간우,해연구가강료실지간우원적상세조사화실내자료적상관려파、원활처리、위장적전환、이상정반연해석적연구공작,인위가강부광지층、구조、암장암、위암식변화중、자종합이상"오위일체"적심부종합조광모식,시심조함형식철광심부광체적유효방법.
The Hanxing iron ore deposit is one of the famous iron ore types in China. In recent years, some concealed heavy iron ore bodies were found at the depth of Baijian low magnetic anomaly area, suggesting huge prospects in search for deep ore deposits. The exploration work conducted by No. 11 Geological Party of Hebei Bureau of Geology and Exploration confirmed that the Baijian iron ore deposit is a deep, large-sized and high grade Hanxing type iron ore deposit. Based on an analysis of physical properties of the Hanxing iron ore deposit and a prognosis of the deep concealed iron ore bodies in combination with geophysical technology, the authors hold that high-precision gravity and magnetic combination is the most effective method in search for iron ore deposits of this kind, and that the EH-4 electrical-magnetic system is the effective method in finding and predicting blind ore bodies on the basis of investigating deep ore-controlling structures, rocks and contacts with surrounding rocks. These measures will surely deepen the understanding of the deep synthetic exploration model named "five types in one deposit", which includes ore-bearing layer, structure, magmatic rock, wall rock alteration, gravity and magnetic anomalies. The result in this study can play a guiding role in exploring deep iron deposits of Hanx-ing type.