摘要
区域地磁异常的提取对于研究地壳区域的、深部的情况是很有益的。为此,采用地磁台站的多分量磁场强度,经过处理获得了区域地磁异常,提供了丰富的地质信息。
By the analysis of the three components of geomagnetic field data of China observed from 1889 geomagnatic stations in 1970,the author considers that the method 'spherical harmonic function's fit of geomagnetic field'applied to the regional survey is available and efficient. In this paper, the author holds that the distribution of the anomelies is related to the gectectonic framework of China. Therefore, this method provides a new way for divisicn of geotectonic units. Mean while, the author preseats three maps,and believes that they will play a positive role in solving the geotectonic problems of China, especially in hidden structure.
关键词
地磁异常
球谐函数
余纬度
内源场
spherical harmonic function, remanent latitude magnetic anomaly,inner source field
