【摘要】 利用小波分析方法处理解释龙门山及其邻区(102°E～107°E,29.8°N～33°N)1:20万航磁资料,得出川西坳陷高值异常区、龙门山磁异常陡变带与红原——黑水低缓负异常区3个不同地质构造单元,以及龙门山超壳断裂带的构造特征。龙门山断裂由天全向北东经都江堰、汶川,在平武-青川分为两支,一支往北,一支往北东的宁强。龙门山断裂与地震震源在空间上并没有明显的对应关系。利用增强型NGDC-720岩石圈磁场模型反演龙门山地区居里等温面,发现地震震源基本上围绕着居里等温面隆起分布,呈北北东走向。这些处理解释结果对于探讨龙门山及其邻区深部与区域构造及与汶川地震的关系有参考意义。更多还原

【Abstract】 According to the data of aeromagnetic and CHAMP magnetic anomalies in the Longmen Mountain and its adjacent region(102°E~107°E,29.8°N~33.8°N),based on analyzing the characteristics of the anomalies,the paper analyzes the characteristics of the fault system by using the technology of wavelet multi-scale analysis,and gives curie isothermal surface inversion and interpretation.Finally,we discuss the relationship between the magnetic anomalies and earthquake.更多还原