冀西北地区某区域断裂构造及地层结构特征研究  

Study on Fault Structure and Stratigraphic Structure Characteristics of a Region in Northwest Hebei Province

作　　者：黄文龙 许柏青 HUANG Wenlong;XU Baiqing(Hebei Provincial Bureau of Geology and Mineral Exploration and Development Land and Resources Exploration Center(Hebei Province Mine and Geological Disaster Emergency Rescue Center),Shijiazhuang 050081,China;Hebei University of Geosciences,Shijiazhuang 050031,China)

机构地区：[1]河北省地质矿产勘查开发局国土资源勘查中心(河北省矿山和地质灾害应急救援中心),河北石家庄050081 [2]河北地质大学,河北石家庄050031

出　　处：《科技创新与生产力》2025年第3期66-70,共5页Sci-tech Innovation and Productivity

摘　　要：本文分别采用高精度重力勘探、浅层地震勘探和地质雷达探测等手段从深至浅精细刻画了冀西北地区某区域断裂构造分布及地层结构特征。研究成果表明,研究区共分布有7条断层,以正断层为主,均未断至第四系上更新统内部。浅部地层主要由第四系上更新统、中更新统、下更新统地层和花岗岩强风化带构成,以砂砾卵石、砂、粉土、粉质黏土、黄土为主,其底界埋深30~300 m,埋深总体趋势由西向东逐渐加深,下部以燕山早期运动火山岩为主。超浅层地层主要以第四系全新统地层为主,主要为粉质黏土、粉质黏土夹卵砾石等,剖面范围内地层呈水平层状结构,地层界面清晰,厚度在30 m左右。By means of high-precision gravity exploration,shallow seismic exploration and geological radar exploration,the distribution of fault structures and the characteristics of stratum structure in a certain area in Northwest Hebei Province are described from deep to shallow.The research results show that there are 9 faults distributed in the study area,mainly normal faults,which have not broken into the Quaternary upper Pleistocene.The shallow stratum is mainly composed of Quaternary upper Pleistocene,Middle Pleistocene and lower Pleistocene strata and granite strongly weathered zone,mainly composed of gravel,pebble,sand,silt,silty clay and loess.The buried depth of its bottom boundary is 30~300 m,and the buried depth is gradually deepened from west to east.The lower part is dominated by early Yanshan volcanic rocks.The ultra shallow stratum is mainly Quaternary Holocene stratum,mainly composed of silty clay,silty clay mixed with pebbles and gravels,etc.the stratum within the section is in horizontal layered structure,with clear stratum interface and thickness of about 30 m.

关 键 词：断裂构造 地层结构 地球物理勘探 高精度重力勘探 浅层地震勘探 地质雷达探测 

分 类 号：P313.2[天文地球—固体地球物理学] P542.31[天文地球—地球物理学] P631