浅层地震勘查在第四系分层及基岩调查中的应用

Application of shallow seismic exploration in Quaternary stratification and bedrock investigations

在第四系分层和基岩构造调查中,浅层地震勘探是主要的地球物理方法,包括横波反射、纵波反射和面波勘探等。根据探测目标深度的不同,选择合适的地震勘探方法是取得高品质地震勘探资料的关键。在南京查区、南通查区和云南查区分别采用横波反射和纵波反射方法,选取合适的震源,结合调查区的区域地质和钻孔资料,对勘探测线上的第四系分层和基岩构造进行分析和推断。

Shallow seismic exploration is a main geophysical method applied in Quaternary stratification and bedrock structure investigallons, including shear wave reflection, P-wave reflection and surface wave exploration, To select suitable seismic exploration method based on different detection depth is critical to obtain high-quality seismic exploration data. This study adopted shear wave reflection and P-wave reflection methods in the Nanjing, Nantong and Yunnan survey areas, and selected seismic source to analyze and infer tile Quaternary stratification and bedrock slructures, combined with the regional geology and drillhole data. It is suggested that the shallow seismic exploration method is effective for the Quaternary stratification and bedrock structure investigations.