用地震地层学方法识别下扬子区古生界地震层序初探

A TENTATIVE APPROACH TO THE RECOGNITION OF PALAEOZOIC SEISMIC SEQUENCE OF LOWER YANGTZE AREA BY SEISMIC STRATIGRAPHY

地矿部石油物探研究所

应用下扬子区古生界地震反射剖面资料,按照地震地层学方法并结合地震参数特征及反射波组与地层岩性关系,将古生界地震层序初步划分为T₂—C、D—S、O—Z₂三个亚层序,这一识别的建立对分析已取得的古生界地震资料有一定意义。

Using the seismic reflection seetion data collected from Palaeozoic group of the Lower Yangtze area and in the light of the concepts of seismic stratigraphy integrated with characteristics of the seismic parameters along with the relation between the seismic wave group and stratigraphic lithol-ogy, the Palaeozoic seismic sequence is preliminarily divided into 3 subsequences, T₂-C, D-S, and O-Z₂ . Positively, it is of significance to have established such a recognition for examining the data obtained from Palaeozoic group.