The stratigraphic horizons have long been divided according to a lithostratigraphic boundary.
长期以来，地质分层采用岩石地层单位界面。
This paper puts forward the types of sequence stratigraphic boundary and the sequence stratigraphic model bf epicontinental basin.
本文提出了内陆表海含煤盆地层序界面类型和层序模式。
Carbon and Oxygen isotopic study of some representative Cambrian Ordovician boundary strata of various stratigraphic areas in East China has done.
对我国东部不同地层区一些代表性的寒武系—奥陶系界线层位开展了碳、氧同位素研究。
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