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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。
The data of 1: 200000 aeromagnetic data of Longmenshan and its adjacent area (102 ° E ~ 107 ° E, 29.8 ° N ~ 33 ° N) are interpreted and processed by wavelet analysis, and the high value anomalous area in West Sichuan Depression, Three distinct geological structural units of anomalous abrupt zone and red and black water anomalous zone, and the structural features of the Longmen Shan super-fault zone. Longmenshan fault from the sky all the way to the north east by Dujiangyan, Wenchuan, in Pingwu - Green River is divided into two, one north, one to the northeast of Ning Ning. Longmenshan fault and the source of the earthquake in space and no obvious correspondence. Using the enhanced NGDC-720 lithospheric magnetic field model to invert the Curie Isotope in the Longmenshan area, we found that the epicenter of the earthquake mainly distributed around the Curie isothermal surface uplift with a north-north eastward trend. The results of these treatments can be of reference significance for exploring the relationship between the deep and regional structures of Longmenshan and its adjacent areas and the Wenchuan earthquake.