摘要
沙颍河流域地质结构比较复杂,研究区域的岩性包括冲积层、火山灰和花岗岩等。在研究区域发现的地质接触、断层和断裂带可以表明这个区域发生过的地质演变过程。为了研究这些重要的地质特征,二维电阻率成像方法得到进一步拓展和研究。该方法可以描绘出地质结构的地下图像。文章的研究包括对三条不同长度的独立调查线路的勘测。使用偶极子阵列和10m的电极间距进行调查。本研究的目的是确定地下地质接触情况,并确定接触带处是否存在断层或者断裂带。二维电阻率成像方法反演剖面的结果成功地表征了断层、接触面和裂缝等地质构造的类型。结果表明二维电阻率成像方法的结果可以用于绘制沙颍河流域的地质线形。
The geological structure of Shaying River Basin is complex,and the lithology of the study area includes alluvium,volcanic ash and granite.Geological contacts,faults and fault zones found in the study area can indicate the geological evolution of the area.In order to study these important geological features,two-dimensional electrical resistivity tomography has been further developed and studied.The method can paint subsurface images of geological structures.This paper studies the survey of three independent survey lines of different lengths.A dipole array and 10m electrode spacing are used to investigate.The purpose of this paper is to determine the subsurface geological contact and determine whether there is a fault or fault zone at the contact zone.The inversion results of two-dimensional electrical resistivity tomography have successfully characterized the types of faults,contact surfaces,fractures and other geological structures.The results show that the two-dimensional electrical resistivity tomography method can be used to map the geological lineages of Shaying River Basin.
作者
陈超杰
CHEN Chaojie(China Railway 18th Bureau Group 5th Engineering Co.,Ltd.,Yan’an 716004,China)
出处
《中国水能及电气化》
2024年第5期53-57,共5页
China Water Power & Electrification
关键词
沙颍河流域
地质结构
二维电阻率成像方法
Shaying River Basin
geological structure
two-dimensional electrical resistivity tomography
