層そう序じょ

noun

stratigraphy; succession of strata

Geological term referring to the study of rock layers and their sequence.

• この地ち域いきの層そう序じょを調ちょう査さする。

  We investigate the stratigraphy of this area.

• 層そう序じょ学がくは地ち質しつ学がくの一いち分ぶん野やだ。

  Stratigraphy is a branch of geology.