最新的岩石圈磁场模型

THE NEWEST LITHOSPHERIC MAGNETIC FIELD MODEL

推介了Stefan Maus博士和他的同事根据CHAMP卫星观测数据构建的地球岩石圈磁场模型系列MF1-MF6。我们目视对比了分别根据MAGSAT观测数据和根据CHAMP(MF6)观测数据编绘的中国大陆上的磁异常图,发现在MAGSAT异常图上的磁异常(如塔里木盆地),在MF3、MF4、MF5、MF6异常图上分解为几个范围较小、幅度较大的异常。因此,MF3、MF4、MF5、MF6更适宜于勾画小的地质构造。

A series of Earthg lithospheric magnetic field models, MF1 -MF6, produced by Dr. Stefan Maus and his colleagues according to data from CHAMP, are recommended in this paper. The author made a visual comparison between the magnetic anomaly map compiled on the basis of MAGSAT data and that compiled on the basis of CHAMP data （MF6） collected over Chinag continent. It is shown that the anomaly that appears in the map from MAGSAT（ e. g. , the anomaly in Tarim Basin） resolves into several smaller anomalies in the map from CHAMP （ MF3, MF4, MFS, MF6） . Therefore, MF3, MF4, MFS, MF6 are more suitable for mapping smaller geological features.