小波分析在山西某矿区磁测资料处理的应用

Application of Wavelet Analysis in the Processing of Magnetic Anomaly Data in a Mining Area of Shanxi Provime

对于深埋地下矿层来讲,用地球物理方法探测其准确位置,以及相关的褶皱、断层等构造位置是至关重要的。为了有效地分析矿层地下场源的异常特征,首先对某矿区做总磁场强度ΔT异常分析,然后利用已有数据进行磁异常剖面分析,最后采用小波分析方法对磁异常进行多尺度分析,获取不同深度层次的场源信息。通过分析认为,小波多尺度分析可以更好地揭示深部场源的赋存信息,计算精度可靠,较传统的延拓、滤波等方法有更高的分辨率等优势特征,是该地区找矿的优选方法。

For deep buried underground deposits,it is crucial to use geophysical methods to detect their exact location and related structural locations such as folds and faults.In order to effectively analyze the anomalous characteristics of the underground source of the ore deposit,this paper firstly performs the analysis of the total magnetic ΔT anomaly in a mining area in Shanxi,and uses the existing data to analyze the magnetic anomaly profile.Finally,the multi-scale analysis of the magnetic anomaly is performed by wavelet analysis to obtain field source information at different depth levels.Through analysis,it is considered that wavelet multi-scale analysis can better reveal the information of deep field source,and the calculation accuracy is reliable.It has higher resolution than traditional methods such as extension and filtering,which is the best method of prospecting in this area.