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Geological period   /dʒˌiəlˈɑdʒɪkəl pˈɪriəd/   Listen
Geological period

A unit of geological time during which a system of rocks formed.  Synonym: period.

WordNet 3.0 © 2010 Princeton University

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"Geological period" Quotes from Famous Books

... at least, would apparently ensue were the Isthmus of Panama to settle into the sea, allowing the Caribbean current to pass into the Pacific. But the geologist tells us that this isthmus rose at a comparatively recent geological period, though it is hinted that there had been some time previously a temporary land connection between the two continents. Are we to infer, then, that the two Americas in their unions and disunions have juggled with the climate of ...
— A History of Science, Volume 3(of 5) • Henry Smith Williams

... of mountains has attained a great elevation, and has so remained during a long geological period, the species of the two sides at and near their bases will be often very different, representative species of some genera occurring, and even whole genera being peculiar to one side only, as is remarkably seen in the case of the Andes and Rocky ...
— Contributions to the Theory of Natural Selection - A Series of Essays • Alfred Russel Wallace

... rocks protrude through it. Along the Ganges again, its surface is an unbroken level between Chunar and the rocks of Monghyr. The origin of its component mineral matter must be sought in the denudation of the Himalayas within a very recent geological period. The contrast between the fertility of the alluvium and the sterility of the protruded quartzy rocks is very striking, cultivation running up to these fields of ...
— Himalayan Journals (Complete) • J. D. Hooker

Words linked to "Geological period" :   Triassic, Pennsylvanian period, quaternary, ice age, Age of Man, Silurian, Devonian period, Permian, Silurian period, Devonian, Pennsylvanian, cretaceous, Upper Carboniferous period, Age of Fishes, geological era, Upper Carboniferous, era, tertiary, epoch, glacial epoch, Jurassic period, Cambrian, Tertiary period, Missippian period, Ordovician period, Cretaceous period, Triassic period, Ordovician, glacial period, Cambrian period, Permian period, Quaternary period, carboniferous, Jurassic, geological time, Lower Carboniferous, geologic time, Carboniferous period, period, Lower Carboniferous period, Mississippian

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