高密度电阻率法在雄安新区浅表古河道精细化探测中的应用研究  

Application of the high-density resistivity method in detailed exploration of superficial paleochannels in Xiong'an New Area

作　　者：苏永军 曹占宁 赵更新 胡祥云[2] 范剑[4] 张竞 范翠松[1,3] 黄忠峰 SU Yong-Jun;CAO Zhan-Ning;ZHAO Geng-Xin;HU Xiang-Yun;FAN Jian;ZHANG Jing;FAN Cui-Song;HUANG Zhong-Feng(Tianjin Center,China Geological Survey,Tianjin 300170,China;School of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China;Geological Science&Technology Innovation Center of North China,Tianjin 300170,China;Tianjin North China Geological Exploration Bureau,Tianjin 300170,China)

机构地区：[1]中国地质调查局天津地质调查中心,天津300170 [2]中国地质大学地球物理与空间信息学院,湖北武汉430074 [3]华北地质科技创新中心,天津300170 [4]天津华北地质勘查局,天津300170

出　　处：《物探与化探》2023年第1期272-278,共7页Geophysical and Geochemical Exploration

基　　金：中国地质调查局地质调查项目“京津冀协同发展区暨雄安新区资源环境承载能力监测评价”(DD20221727)。

摘　　要：为实现雄安新区浅表古河道的精细化探测,在遥感工作的基础上,在研究区开展了两条高密度电阻率法剖面探测,经钻孔验证,利用高密度电阻率法确定的古河道分布范围具有较高的准确度,探明区内古河道具有“弯曲”、“迂回”和“辫状”的平面分布特征,实现了精细化探测的目的,取得了良好的应用效果,为探测和研究浅表古河道提供了新思路,为类似地质条件区域调查古河道方法选择提供了借鉴和参考。To explore in detail superficial paleochannels in Xiong'an New Area,this study investigated two profiles in the study area using the high-density resistivity method based on previous remote sensing.The interpretation results were verified through drilling.The distribution range of the paleochannels that was delineated using the high-density resistivity method was more accurate than that obtained from remote sensing.This study determined that the superficial paleochannels in the study area exhibit curved,tortuous,and braided planar distribution,achieving excellent application performance in the detailed exploration of superficial paleochannels.This study provided a new idea for future exploration and study of superficial paleochannels and can be used as a reference for the selection of methods used to investigate paleochannels in similar geological conditions.

关 键 词：高密度电阻率法 浅表古河道 精细化探测 钻孔 雄安新区 

分 类 号：P631.4[天文地球—地质矿产勘探]