单词	stratigraphy
释义	stratigraphy noun stra·​tig·​ra·​phy strə-ˈti-grə-fē  1 : geology that deals with the origin, composition, distribution, and succession of strata 2 : the arrangement of strata Example Sentences 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 Word History Etymology International Scientific Vocabulary First Known Use 1841, in the meaning defined at sense 1 Medical Definition stratigraphy noun stra·​tig·​ra·​phy strə-ˈtig-rə-fē  plural stratigraphies : tomography
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