解析延拓法在桃村磁法处理中的应用

磁法勘探是常用的地球物理方法，随着新的数据处理的出现和资料解释技术的提高，磁法勘探的应用领域越来越广泛。解析延拓法在磁异常数据处理解释中有着重要的作用，向上延拓能有效的排除浅层干扰，突出深层异常特征，而向下延拓则能有效的排除深层干扰，相对突出浅层异常特征。通过对山东栖霞桃村进行的地球物理磁法勘探的磁异常数据进行预处理后，分别作向上和向下延拓处理，在延拓后的磁异常等值线图上有效地识别了断层、天然气管道等异常现象，取得了明显效果。

The Application of Analytic Continuation in Taocun Magnetic Prospecting

The analytic continuation is important in the data processing of magnetic anomaly.Its main effect is that the upward continuation could effectively remove the noise in shallow layer and predominate the characteristic of anomalous body in deep layer.On the other hand,the downward continuation could predominate the characteristic of anomalous body in shallow layer.The thesis is about the data processing of magnetic anomaly in Taocun of Qixia in Shandong Province.Through processing,the Taocun fault and the natural gas piping could be obviously illustrated in the magnetic contour figure after continuation.