stra·​tig·​ra·​phy | \ strə-ˈti-grə-fē How to pronounce stratigraphy (audio) \

Definition of stratigraphy

1 : geology that deals with the origin, composition, distribution, and succession of strata
2 : the arrangement of strata

Examples of stratigraphy in a Sentence

Recent Examples on the Web Each layer of stratigraphy is a stark stripe of brown, beige, or gray, and some are flecked with white shells. Devon Bidal, Smithsonian Magazine, 18 Feb. 2022 The goal was to better understand the area’s stratigraphy, or rock layers, and to find a way to accurately date ancient lake sediments. Riley Black, Scientific American, 23 Sep. 2021 Researchers used techniques including radiocarbon dating, stratigraphy and ceramic typology to determine that people buried him in around 726 A.D., the same year workers built the hieroglyphic staircase, notes Notimerica. Isis Davis-marks, Smithsonian Magazine, 17 Mar. 2021 Finkelstein spent a year preparing for Megiddo, poring over stratigraphy and chronological charts. Ruth Margalit, The New Yorker, 22 June 2020 An electromagnetic pulse is directed into the ground, and any objects or layering (stratigraphy) will be detectable in the reflections picked up by a receiver, just like regular radar. Jennifer Ouellette, Ars Technica, 14 June 2020 While the saga of HS2 is still being written, those small finds might resonate as much with the public as the discoveries of icons, like Matthew Flinders, whose life stories are embedded in the UK’s ever-changing stratigraphy. Megan Gannon, Popular Science, 13 Apr. 2020 And so stratigraphy — the study of layers (strata) of rock in relation to each other — was born. Gemma Tarlach, Discover Magazine, 30 June 2019 In stratigraphy, archaeologists assume that sites undergo stratification over time, leaving older layers beneath newer ones. Erin Blakemore, National Geographic, 28 June 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'stratigraphy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of stratigraphy

1841, in the meaning defined at sense 1

History and Etymology for stratigraphy

International Scientific Vocabulary

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The first known use of stratigraphy was in 1841

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Cite this Entry

“Stratigraphy.” Dictionary, Merriam-Webster, Accessed 18 Aug. 2022.

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More Definitions for stratigraphy


stra·​tig·​ra·​phy | \ strə-ˈtig-rə-fē How to pronounce stratigraphy (audio) \
plural stratigraphies

Medical Definition of stratigraphy

More from Merriam-Webster on stratigraphy Encyclopedia article about stratigraphy


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