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The study of rock strata, especially the distribution, deposition, and age of sedimentary rocks.

strat′i·graph′ic (străt′ĭ-grăf′ĭk), strat′i·graph′i·cal (-ĭ-kəl) adj.
strat′i·graph′i·cal·ly adv.


1. (Geological Science) the study of the composition, relative positions, etc, of rock strata in order to determine their geological history
2. (Archaeology) archaeol a vertical section through the earth showing the relative positions of the human artefacts and therefore the chronology of successive levels of occupation
Abbreviation: stratig
stratigrapher, stratigraphist n
stratigraphic, ˌstratiˈgraphical adj


(strəˈtɪg rə fi)

a branch of geology dealing with the classification, nomenclature, correlation, and interpretation of stratified rocks.
stra•tig′ra•pher, n.
strat•i•graph•ic (ˌstræt ɪˈgræf ɪk) adj.
strat`i•graph′i•cal•ly, adv.


the branch of geology that studies the classification, correlation, and interpretation of stratified rocks. — stratigrapher, n.stratigraphic, stratigraphical, adj.
See also: Geology


1. The study of the composition and relative positions of rock strata.
2. A section cut vertically in the ground and used, by examining the different layers, to determine the chronology of human artifacts or settlement remains that are found buried.
3. The study of stratified (layered) rocks.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.stratigraphy - the branch of geology that studies the arrangement and succession of strata
geology - a science that deals with the history of the earth as recorded in rocks
References in periodicals archive ?
The Stratigraphic Record of Gubbio: Integrated Stratigraphy of the Late Cretaceous-Paleogene Umbria-Marche Pelagic Basin
A 13-hole reverse circulation drilling program at the North Bowl Playa will evaluate stratigraphy, conduct brine chemistry analyses, and determine preliminary well hydrology parameters such as permeability and transmissivity.
The final paper discusses the role of basalt stratigraphy and structure in understanding the hydrogeology of the basalts.
These microfacies have been studied on the basis of orthochem and allochem elements, their percentages, and their texture in the stratigraphy section [19].
Topics include a new geological map of Stromboli volcano in Italy's Tyrrhenian Sea based on application of a lithostratigraphic and unconformity-bounded stratigraphic (UBS) units, a revised volcanostratigraphy of the Upper Miocene to Lower Pliocene Urgup formation in the central Anatolian volcanic province of Turkey, ignimbrite stratigraphy and chronology on Tercerira Island in the Azores, geologic mapping of Mexico's Colima volcanic complex and implications for hazard assessment, and probabilistic digital hazard maps for avalanches and massive pyroclastic flow using TITAN2D computational model.
As the title indicates, the nineteen contributions are mainly concerned with the use of trace fossils in stratigraphy or palaeoenvironmental interpretation.
Baltic cooperation in geology, particularly in the field of regional stratigraphy, has been many-sided and active during the last four decades since the foundation of the Baltic Regional Stratigraphical Commission (BRSC) in 1969 as a regional unit of the Interdepartmental Stratigraphical Committee of the former Soviet Union.
In the Pleistocene period, most of the earlier soil in the northern part was obliterated by advancing and retrenching glaciers, leaving a complex stratigraphy.
It assumes familiarity with basic concepts and terminology in both fluvial geomorphology and fluvial sedimentology and stratigraphy and some comfort with mathematics and mechanics, especially in the early chapters.
Arsenic toxicity in groundwater in parts of Bengal Basin in India and Bangladesh: role of Quaternary stratigraphy and Holocene sea-level fluctuation.
As a trained archaeologist I can tell you that it's highly useful for observing and studying the stratigraphy of interfaces.