庐枞矿集区大地电磁探测及电性结构初探
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国家专项“深部探测技术与实验研究”(编号:SinoProbe-3-4),国家自然科学基金项目(重点项目)(编号:40930418)


Magnetotelluric Sounding and Preliminary Study of electrical structure in Lujiang-Zongyang Ore Concentrated Area
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    摘要:

    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;最后综合地质背景和庐枞矿集区大地电磁测深剖面反演结果对庐枞地区的典型结构进行了初步的分析与解释。

    Abstract:

    Using telluric electromagnetic sounding method (Magnetotelluric, MT) in Lujiang-Zongyang Ore Concentrated Area, is helpful to studying geological structure of Lujiang-Zongyang Ore Concentrated Area, at the same time, it has important theoretical sense in research of MT signal regulation in strong interference region and increasing MT data processing and interpretation level. In this paper, firstly, we expounded the geologic aspects of Lu-Zong basin and the current researching state of deep MT sounding method. Second, we introduced the experimental research of data acquisition of MT sounding in Lujiang-Zongyang Ore Concentrated Area, such as: consistency experiment of instruments, contrast experiment of single-point acquisition time using MT method and assessment of data quality, etc. and then, we studied on typical types of MT interference in Lujiang-Zongyang Ore Concentrated Area and discussed the method of filtering. At last, we drew forth the elementary conclusion and interpretation of typical structure in Lujiang-Zongyang Ore Concentrated with the geological background and the inversion result of MT sounding profile.

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肖晓,汤井田,周聪,吕庆田.2011.庐枞矿集区大地电磁探测及电性结构初探[J].地质学报,85(5):873-886.
Xiao Xiao, Tang Jiing Tian, Zhou Cong, LV Qingtian.2011. Magnetotelluric Sounding and Preliminary Study of electrical structure in Lujiang-Zongyang Ore Concentrated Area[J]. Acta Geologica Sinica,85(5):873-886.

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  • 收稿日期:2011-03-04
  • 最后修改日期:2011-04-11
  • 录用日期:2011-05-16
  • 在线发布日期: 2011-05-16
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