广西南宁盆地下第三系地震年代地层学研究  

STUDIES OF LOWER TERTIARY SEISMIC CHRONOSTRATIG-RAPHY IN NANNING BASIN, GUANGXI, CHINA

作　　者：肖义越[1] 陈辉[1] 

机构地区：[1]中国科学院地质研究所,北京100029

出　　处：《地质科学》1993年第2期127-134,共8页Chinese Journal of Geology(Scientia Geologica Sinica)

摘　　要：地震反射追随年代地层的对比关系,使得地震反射对比关系具有年代地层学意义,本文论述地震反射界面的年代地层学意义,介绍层序年代剖面图的制作方法,并以广西南宁盆地下第三系地震年代地层学研究为例,对层序年代进行了推断。Primary seismic reflections follow chronostratigraphic (time-stratigraphic) correlation patterns rather than time-transgressive lithostratigraphic (rock-stratigraphic) units, so that it has chronostratigraphic significance. In this paper, chronostratigraphic significance of seismic reflection boundaries has been discussed, and mapping of sequence chron section also has been introduced. Taking the Lower Tertiary seismic chronostratigraphical study in Nanning basin, southern China as an example, its seismic sequence is subdivided and the sequence chron inferred on the basis of the seismic reflection recongnization of the relationship between sedimentary sequence and stratal boundaries. Results suggest that the Wayaocun Formation may belong to EarJy Cretaceous and the Fenghuangshan Formation to Late Cretaceous.

关 键 词：地震 年代地层学 下第三纪 

分 类 号：P315.2[天文地球—地震学]