The Permian through Jurassic strata of the Colorado Plateau area of southeastern Utah demonstrate the principles of stratigraphy.

Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification). It is primarily used in the study of sedimentary and layered volcanic rocks.Stratigraphy has two related subfields: lithostratigraphy (lithologic stratigraphy) and biostratigraphy (biologic stratigraphy).

Historical development

Engraving from William Smith's monograph on identifying strata based on fossils

Catholic priest Nicholas Steno established the theoretical basis for stratigraphy when he introduced the law of superposition, the principle of original horizontality and the principle of lateral continuity in a 1669 work on the fossilization of organic remains in layers of sediment.

The first practical large-scale application of stratigraphy was by William Smith in the 1790s and early 19th century. Known as the "Father of English geology",[1] Smith recognized the significance of strata or rock layering and the importance of fossil markers for correlating strata; he created the first geologic map of England. Other influential applications of stratigraphy in the early 19th century were by Georges Cuvier and Alexandre Brongniart, who studied the geology of the region around Paris.

Strata in Cafayate (Argentina)
Other Languages
Afrikaans: Stratigrafie
asturianu: Estratigrafía
Bân-lâm-gú: Chân-sū-ha̍k
беларуская: Стратыграфія
беларуская (тарашкевіца)‎: Стратыграфія
български: Стратиграфия
bosanski: Stratigrafija
català: Estratigrafia
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français: Stratigraphie
한국어: 층서학
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hrvatski: Stratigrafija
Bahasa Indonesia: Stratigrafi
íslenska: Jarðlagafræði
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日本語: 層序学
norsk nynorsk: Stratigrafi
Plattdüütsch: Stratigraphie (Geologie)
polski: Stratygrafia
português: Estratigrafia
română: Stratigrafie
русский: Стратиграфия
Simple English: Stratigraphy
slovenčina: Stratigrafia
slovenščina: Stratigrafija
српски / srpski: Стратиграфија
srpskohrvatski / српскохрватски: Stratigrafija
svenska: Stratigrafi
Tagalog: Stratigrapiya
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українська: Стратиграфія
Tiếng Việt: Địa tầng học
中文: 地层学