【摘要】 岩石圈磁场是从浅部至深部不同异常源引起磁异常的叠加,包含了从浅部到深部的丰富信息。本文对川滇地区岩石圈磁场的X、Y、Z三分量作一至五阶尺度分解后,得到不同深度处异常源磁异常的分布特性,并结合其他相关地球物理因素,研究它们之间是否存在着相关性。结果表明,川滇地区地壳磁性体存在明显的横向不均匀性,区内磁异常条带和复杂的断层构造与地震带分布具有一定的相关性,在应用过程中小波多尺度进行分析的过程中表现出了较强的层次感,特别是细节异常对分析局部断裂的空间分布更直观、便利,在总体上优于传统分解方法。更多还原

【Abstract】 Lithospheric magnetic field is the accumulation of different anomalies in the shallow and deep parts,including a lot of information.This paper analyzes the lithospheric magnetic field X,Y,Z three-component order from one to five scale decomposition,finds out distribution characteristics of magnetic anomaly sources in different depths,and with the help of other geophysical factors,tries to discuss the correlation of the factors.The results show some relevance between the magnetic anomalies in the study area and the distribution of fault structure and earthquake belt,strong levels in the wavelet scale analysis;a detailed anomaly is more obvious and convenient in the spatial distribution analysis than the traditional decomposition method.更多还原