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同步阵列大地电磁测深法及其在山区的应用技术与效果
石油物探
1999年 38卷 第No. 3期
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Title
Synchroarray magnetotelluric sounding method and its application in mountainous areas
Organization
Department of Geophysical Exploration , Jianghan Petroleum Institute, Jingzhou 43102
摘要
通过对地表异常体引起曲线畸变的理论分析, 研究了同步阵列大地电磁测深法山区资料的处理方法, 采用低通滤波、带地形的二维反演方法有效地消除了地形的影响与静态偏移。在湖北利川山区的试验表明, 该方法在复杂地表山区不失为一种有效的勘探方法。
Abstract
The method of synchroarray magnetoelluric sounding data processing is studied on the basis of the theoretical anaysis of MT curve static shift and other distortions due to surface terrain andnear-surface inhomogeneities. The distortions can be removed effectively by using the low-pass filter and2-D inversion given in the paper. The test results in the Lichuan area, Hubei indicate that it is an effective exploration method in mountainous areas.
关键词：
同步阵列大地电磁测深法;
静态偏移;
地形;
校正;
低通滤波;
Keywords:
synchroarray magnetotelluric sounding;
static shift;
terrain;
correction;
low-pass filtering;
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