CAJ | 학술논문

2．5D磁法反演估算铁矿资源量，关键是在垂直磁异常走向上求拟合模型的截面积。该文利用一种常见模型拟合4种实测磁场，发现铁矿截面积与埋深和磁性大小有一定的规律：磁化强度一定时，截面积与埋深呈线性正相关；埋深一定时，截面积与磁化强度呈近似指数形式的反相关。固定深部或外围磁性体参数，单独考虑浅部或中问铁矿模型时也有这种规律。在无钻孔资料及磁性资料不清楚时，磁化强度100000×10^-3～150000×10^-3A／m为估算铁矿资源量的最佳磁参数。因磁法反演的多解性，此类方法适用于钻孔验证前的资源量估计。
2．5D자법반연고산철광자원량，관건시재수직자이상주향상구의합모형적절면적。해문이용일충상견모형의합4충실측자장，발현철광절면적여매심화자성대소유일정적규률：자화강도일정시，절면적여매심정선성정상관；매심일정시，절면적여자화강도정근사지수형식적반상관。고정심부혹외위자성체삼수，단독고필천부혹중문철광모형시야유저충규률。재무찬공자료급자성자료불청초시，자화강도100000×10^-3～150000×10^-3A／m위고산철광자원량적최가자삼수。인자법반연적다해성，차류방법괄용우찬공험증전적자원량고계。
2.5 D inversion of magnetic method estimate ironore resources, the key is the model＇s sectional area in the vertical towards of magnetic anomaly. This paper using a common model to simulate four measured magnetic field,found ironore＇s sectional area and buried depth and magnetic size have certain laws： when magnetized strength is certain,sectional area and buried depth have linear positive correlation,when Buried depth is certain, sectional area and magnetic size have inverse correlation of exponentially forms. Fixed deep or peripheral magnetic model＇s parameters,when considering only shallow or intermediate ironore model also have this laws. Without the borehole data and magnetic data is not clear,the scope that is 100,000 between 150,000 （10-3A/m） is the best magnetic parameter for estimation on ironore esources. Because the multiplicity on Magnetic Method Inversion, this method apply to resource＇s estimation before validation of borehole.