摘要
B.K.Bhattachryya(1975)推导的求磁性体质心的矩谱法公式,该方法理论严谨,计算速度快,并有不需要预先知道磁性体磁化率的特点。在该公式的基础上,本文用推导出的提高求解质心精度的改正公式,求磁性体的质心(h_0),用对数功率谱法求磁性体上界面(h_1),根据公式计算了山西省居里面;并根据热传导的近似公式计算了山西省大地热流值。结果与已有的地质、地球物理资料相吻合,揭示了山西地堑的深部构造特征。
In 1975 B.K. Bhattacharrya worked out an alogrithm. It is characterized by the rapid calculation speed, reasonable theory and the quality that the magnetic capacity of the magnetic bodies needn't be foreseen.From the alogrithm the author derived an improved formula to raise the precision for calculating the centroid. He also calculates the magnetic centroid(ho)with the Moment Spectrum Method and the magnetic top interface (h1) with the Power Spectrum Method.
Both of the results accord with the known geological and geophysical data, thus revealing the characteristics of the deep tectonics of the Shanxi Graben.
关键词
航磁
异常
居里面
矩谱法
山西
Curie Isotherm, Power Spectrum Method, Moment Spectrum Method
