首页|大地电磁法在深部地质构造探测中的应用

大地电磁法在深部地质构造探测中的应用

扫码查看
为探究某矿区的深部地质构造,需采用大地电磁法开展探测任务.使用V8 电法仪在野外采集数据,并基于野外踏勘结果合理布置测点.同时,采取一致性检测、稳定性测定手段,从源头上保证测探数据的可信度.设定平衡因子和迭代次数等采集参数后,采集数据并对其进行反演处理.根据反演结果观察,研究区的南北方向存在较大的电阻率差异,北部为高阻区域,南部为低阻区域,花岗岩主要分布在矿区南部.此外,还识别出了 2 条断裂带,并在埋深为2200m处发现了花岗岩凸起,初步推测可能存在1处中型锡矿床.
Application of Magnetotelluric Method in Deep Geological Structure Exploration
In order to explore the deep geological structure of a mining area,the magnetotelluric method is needed to carry out the detection task.The V8 electrical instrument is used to complete data acquisition in the field,and the survey points are reasonably arranged based on the field exploration results.At the same time,consistency detection,stability measurement and other means are adopted to ensure the reliability of the survey data from the source.After setting the acquisition parameters such as balance factor and iteration times,data acquisition and inversion processing are started.According to the inversion results,there is a large difference in resistivity between the north and south of the study area.The north is high resistivity area,the south is low resistivity area,and granite is mainly distributed in the south of the mining area.In addition,two fault zones were identified,and granite bulges were found at the depth of 2200 m.It is preliminarily speculated that there may be a medium-sized tin deposit.

magnetotelluric methodfield explorationresistivityinversion parametersgeological structure

张凯

展开 >

莱芜区国土空间综合服务中心,山东济南 271100

大地电磁法 野外踏勘 电阻率 反演参数 地质构造

2024

自动化应用
重庆西南信息有限公司

自动化应用

影响因子:0.156
ISSN:1674-778X
年,卷(期):2024.65(1)
  • 2