矿井瞬变电磁法低阻层屏蔽问题解释研究

Interpretation Study on Low Resistivity Layer Shielding Problems of Mine Transient Electromagnetic Method

摘要: 低阻层的"隔离作用"最终导致晚期资料信噪比下降,达不到预想的勘探深度,缺失深部地层的响应特征,不能准确的对目标体进行探测。因此对于浅部含有低阻层的地层,应该根据其反演得到的真实探测深度进行成图并结合其他的水文地质资料进行综合解释。
- 矿井瞬变电磁 /
- 低阻层屏蔽 /
- 全空间效应 /
- 能量衰减
Abstract: The "isolation effect "of low resistivity layer makes late data signal-to-noise ratio decrease. The result is that the exploration depth which is expected can't be reached. Without response characteristics of the deep strata, an accurate detection of the target can't be achieved. Therefore, strata containing low resistivity layer in shallow strata can't be simply studied from the result of the transient electromagnetic detection, but should be studied with other hydrogeological data.
- mine transient electromagnetism /
- low resistivity layer shielding /
- the whole space effect /
- energy attenuation

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