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隐伏矿体定位具有尺度小、精度高的特点,某一方法的单一反演结果可能与实际情况存在较大偏差.依据实际中应用较为广泛的重、磁、电测量,通过密度、磁性、电阻率三参数物性模型以及重磁反演的参考模型(初始模型),构建具有先验信息的多约束反演方案.并以云南芦子园铁铅锌铜多金属矿为例,反演试验效果表明:求解的高密度、低电阻率区域与铅锌矿在埋深、规模和倾向上基本一致,而高密度、低电阻率、高磁化率区域与磁铁矿一致.反映利用先验信息的多约束反演具有精度高、可靠性高的优点,对于找隐伏矿体具有良好的应用前景.
Hidden ore body positioning has the characteristics of small scale and high precision, and the single inversion result of a certain method may deviate from the actual situation greatly.According to the actual application of heavy, magnetic and electrical measurements, through density, magnetism, resistance Rate three-parameter physical model and the reference model (initial model) of gravity and magnetic inversion to construct a multi-constrained inversion scheme with prior information. Taking Luziyuan iron-lead-zinc-copper polymetallic deposit as an example, the inversion effect The results show that the high-density and low-resistivity areas are basically the same as the lead-zinc deposits in terms of depth, scale and tendency, while the areas of high density, low resistivity and high magnetic susceptibility are consistent with the magnetite, reflecting the use of prior information Multi-constraint inversion has the advantages of high precision and high reliability, which has a good application prospect for finding hidden ore body.