SEISMOLOGY AND GEOLOGY ›› 2001, Vol. 23 ›› Issue (2): 217-221.

• Brief Report • Previous Articles     Next Articles

THE INVESTIGATION ON PLANE WAVE CHARACTERISTICS OF GEOMAGNETIC FIELD BY OBSERVED MT DATA

Chen Musen, Wang Yousheng, Ye Baiyuan   

  1. Geophysical Exploration Department of Jianghan Oil Bureau, Hubei 433100
  • Received:2001-01-31 Revised:2001-02-28 Online:2001-06-05 Published:2009-10-26

由实测资料看天然电磁场的平面波特性

陈木森, 王友胜, 叶柏元   

  1. 江汉石油管理局地球物理勘探处, 湖北潜江433100

Abstract: The remote reference MT technigue was used in the MT measurement experiment. The electric fields were recorded at site 113-214 and the magnetic fields were recorded at 4 sites including site 113-214. The apparent resistivity and impedance phase curves have been obtaind for sites 113-214 by using electric fields at this site and magnetic fields at all 4 sites, respectively. The agreement is reached among 4 groups of apparent resistivity and phase curves. The experiment indicates that the hypothesis on plan wave of electromagnetic source can be satisfied.

Key words: Magnetotelluric sounding, Plan wave, Remote reference MT method

摘要: 在大地电磁测深资料处理中发现,同时观测的多个测点的磁道信号在一定距离范围内互换,电磁测深曲线形态变化微小。通过实际资料处理结果研究了天然电磁场平面波的某些量化特性,其结果显示,在一定范围内的天然磁场信号满足平面波的特性。该研究结果为大地电磁测深勘探中合理布设磁场探测器,提供了实际依据。

关键词: 大地电磁测深, 平面波, 远参考