stratigraphy

(countable, uncountable) The study of rock layers and the layering process (stratification).
(countable, uncountable) The layering of deposits, with newer remains overlaying older ones, forming a chronology of the site.

stratigraphical geology

stratigraphic geology

علم التطبق

stratigrafi

استراتيغرافيا؛ جيولوجيا الطبقات

Estratigrafia

طبقات الصّخور

From stratum + -graphy c. 1841–1865.

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