层: I storey; tier; stratum序: order; sequence层序法: hierarchical method层序律: law of superposition层序学: stratinomy层序组: stratigraphic sequence超层序: supersequence副层序: parasequence复层序: compositesequence巨层序: megasequence逆层序: reverse sequence微层序: microsequence原层序: original order; originalorder准层序: subsequence鲍玛层序: bouma sequence冰碛层序: morainic succession层序地层学: sequence stratigraphy层序定律: law of sequence层序对比: matching of successions层序沟通: hierarchical communication层序加积的: aggradational层序间断: break in the succession; gap in succession层序类似的: homotactic层序类似性: homotaxy层序年龄: sechron