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/on"lap', awn"-/, n. Geol.1. the advance of a sea beyond its former shore.2. the layer or layers of sedimentary rock formed on a sea floor as a result of this advance. Cf. offlap.[1945-50; ON + LAP3]
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Universalium. 2010.
onlap
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Onlap — or overlap is the geologic phenomenon of successively younger rock strata extending progressively further across an erosion surface cut in older rocks. It is generally associated with a marine transgression. It is a more general term than… … Wikipedia
onlap — ˈ ̷ ̷ˌ ̷ ̷ noun Etymology: on + lap, n. 1. : progressive submergence of land by an advancing sea 2. : the arrangement of strata deposited on the floor of an advancing sea during its advance compare offlap, overlap … Useful english dictionary
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Ella Island — Infobox Islands name = Ella Island image caption = Southwestern side. Onlap of devonian sandstone (right) on folded cambrian to ordovician rocks (left). image size = locator native name = Ella Ø native name link = Danish language nickname =… … Wikipedia
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