基于中深层地震反射资料研究泰州断裂上地壳特征

采用大吨位可控震源激发和多次覆盖地震反射技术，跨泰州断裂完成一条长度14 km的中深地震反射剖面。结合研究区已有地质资料与获得的剖面反射波组特征，建立沿测线第四系至古生界的精细地层框架，同时对泰州断裂及其两侧的构造形态、断裂切割深度、构造组合样式等进行研究。结果表明，该区上地壳存在多个反射能量较强的界面，其中的古潜山面与结晶基底顶界面TG是本区上地壳结构中两个重要的结构面。泰州断裂总体表现为由2条断层组成的断裂构造带，其上部错断第四系底界面，向下错断新近系、古近系等多套沉积层和结晶基底，对该区隆起和凹陷的形成和地层沉积具有重要的控制作用。

Study on Upper Crust Characteristics of Taizhou Fault Based on Middle-Deep Seismic Reflection Data

The research,using large tonnage vibroseis excitation and multiple coverage seismic reflection techniques, complets the 14 km middle-deep seismic reflection profile across the Taizhou fault. In this paper, we combine geological data from the study area and the characteristics of the obtained reflection wave group, establish a fine stratigraphic frame along the quaternary to the Paleozoic, and study the structural morphology, cutting depth and structural combination of the Taizhou fault and its two sides. The results show that there are many reflective interfaces with strong reflection energy in the upper crust of the area. Two important structural planes of the upper crust structure in this area are the ancient hidden hill surface and the top interface of crystalline basement TG. The Taizhou fault is generally shown as a fault tectonic zone consisting of two faults. Its upper part disconnects the bottom of the Quaternary, and lower part disconnects the Neogene, Paleogene and other sedimentary layers and crystalline basement. It has an important control effect on the formation of the uplift and depression in this area.