地震标准层

地震与古生物资料的联合横向对比还可以帮助评估化石层位和标定地震标准层的相对位置，在生产实践中可节约成本，提高地层对比效率。

Lateral correlation integrating the data of palaeontology and seismology can be used to assess the levels of fossil and to calibrate the relative positions of the seismic markers . Cost could be reduced and efficiency of stratigraphic correlation could be enhanced in the cause of production by this mean .

在地震时间剖面上，通过井间追层及化石对比，发现这一化石组合带底界均与T4地震标准层相对应，形成了一个地震层序界面（等时界面）。

On seismic sections , we found by level tracing and fossil correlating among some wells that the bottom boundary of the fossil assemblage zone is correlated with the seismic marker T4 , so a seismic sequence boundary ( chronohorizon ) is recognized .