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在庐枞矿集区开展大地电磁测深(Magnetotelluric,MT)工作,有助于研究庐枞矿集区区域地质结构、构造,同时,对强干扰地区大地电磁干扰信号规律的研究和MT数据的处理与解释水平的提高有着重要的理论意义。论文首先阐述了庐枞盆地的地质概况及深部MT探测的研究现状,接着介绍了庐枞矿集区大地电磁测深数据采集及相关实验研究,包括仪器的一致性实验、MT单点采集时间对比实验及数据质量评价等;然后对庐枞矿集区典型的大地电磁干扰类型进行了简单的分析,并讨论了矿山强干扰地区大地电磁信号去噪的方法;最后对庐枞矿集区大地电磁测深数据进行了人机交互的二维连续介质反演,并结合区域地质构造背景对剖面反演结果进行了初步的分析与解释。
The work of Magnetotelluric (MT) in Luzong mining area is helpful to study the geological structure and structure of Luzong ore district, and at the same time, the study on the law of electromagnetic interference signal of the earth in the area with strong interference and the MT data The level of processing and interpretation has an important theoretical significance. The paper first describes the geological survey of Luzong Basin and the status quo of deep MT exploration. Then it introduces the data acquisition and related experimental studies of the Luzong mining area, including the consistency test of the instrument and the comparison of MT single point acquisition time Experiment and data quality evaluation. Then, the typical types of electromagnetic interference of land in Luzong mining area are briefly analyzed, and the method of denoising of the electromagnetic signal in the area with strong interference in mines is discussed. Finally, The two-dimensional continuous medium inversion of human-computer interaction was carried out by sounding data. Based on the regional geological tectonic setting, the results of profile inversion were primarily analyzed and explained.