偶极TEM三分量曲线特征分析及应用试验

摘要

针对偶极装置瞬变电磁法的特点，利用三维正演模拟计算了不同产状低阻薄板的三分量响应，并对瞬变响应曲线特征进行了初步分析。在青海夏日哈木矿区开展野外试验，获得了良好的应用效果。正演计算及实测结果表明：水平分量响应能够显示异常体的边界、倾向，垂直分量响应主要反映异常中心。多分量综合解释可以更准确地反映地下异常体的中心位置、边界、倾向等几何参数，为实际资料解释提供依据。%In consideration of the characteristics of dipole array TEM, This paper gives three⁃component response of thick plate models with three⁃dimensional forward modeling software and summarizes the characteristics of TEM curves. The calculation results show that the horizontal component can show the edge and position of the anomaly body, while the vertical component can show the center. Multi⁃component survey can offer more reliable information and provide more evidence for interpretation of field data.