地震勘探在汤东断裂空间展布特征研究中的应用  

Application of Seismic Exploration in Study of Spatial Distribution Characteristics of Tangdong Fault

作　　者：张慧利 周永波 杜婉怡 沈阳 Zhang Huili;Zhou Yongbo;Du Wanyi;Shen Yang(Mineral Resources Exploration Center of Henan Geological Bureau;Natural Resources Science and Technology Innovation Center of Henan Province(Geophysical Deep Exploration Research))

机构地区：[1]河南省地质局矿产资源勘查中心,郑州市450053 [2]河南省自然资源科技创新中心(地球物理深部探测研究),郑州市450053

出　　处：《勘察科学技术》2023年第5期51-55,共5页Site Investigation Science and Technology

摘　　要：为了查明太行山东麓汤东断裂的产状、性质及构造特征,垂直于断层走向开展了不同勘探深度的地震剖面探测,获得了“高分辨率、高信噪比、高保真”的地震反射波时间剖面。通过分析认为,汤东断裂是一条走向北北东,倾向北西,断层倾角上陡下缓,形似铲型的正断层,向上错断了埋深30~40m的第四系地层,属于第四纪以来的隐伏活动断裂,且在地震反射波时间剖面上呈“Y”字形显示。该文对汤东断裂这一第四纪活动断裂的研究为城市的发展、大型工程选址提供了可靠的基础资料。In order to investigate the occurrence,properties and structural characteristics of the Tangdong Fault in the eastern foothills of the Taihang Mountains,the seismic profiles are conducted at different exploration depths perpendicular to the fault strike,and a"high-resolution,high signal-to-noise ratio and high fidelity"seismic reflection time profile is obtained.Through analysis,it is believed that the Tangdong Fault is a normal fault that runs north-northeast,tilts northwest which has a fault inclination that is sleep at the top and gentle at the bottom,resembling a shovel shaped fault.It crosses the Quaternary strata with a burial depth of about 30~40m,and belongs to the hidden active fault since the epoch,and appears in a"Y"shape on the seismic reflection time profile.The study of the Tangdong Fault,a Quaternary active fault,provides reliable basic data for the development of cities and the selection of large-scale engineering sites.

关 键 词：汤阴地堑 内黄隆起 汤东断裂 浅层地震勘探 中深层地震勘探 

分 类 号：P631.4[天文地球—地质矿产勘探]