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Archean synonyms

är-kē'ən

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archaean
(Geology) of, or relating to the geologic eon from about 3,800 to 2,500 million years ago; comprises the Eoarchean, Paleoarchean, Mesoarchean and Neoarchean eras; marked by an atmosphere with little oxygen, the formation of the first continents and oceans and the emergence of simple life
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Archean eon
the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
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Archean aeon
the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
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archeozoic
Alternative form of Archaeozoic.
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archaeozoic
Period of time determined to exist prior to 2.5 thousand million years ago.
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Archeozoic eon
the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
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Archaeozoic aeon
the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
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Find another word for archean. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for archean, like: archaean, Archean eon, Archean aeon, archeozoic, archaeozoic, Archeozoic eon and Archaeozoic aeon.
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Archean Sentence Examples

  • In other words, if there was such a thing as an original crust, which may be looked upon as an open question, the Archean, as now defined, does not appear to represent it.

  • The meta-sedimentary rocks of the Archean include metamorphosed limestone, and schists which carry carbonaceous matter in the form of graphite.

  • The marble and graphite, as well as some other indirect evidence of life less susceptible of brief statement, have been thought by many geologists sufficient to warrant the inference that life existed before the close of the era when the Archean rocks were formed.

  • Most of tie Archean rocks fall into one or the other of two great series, a schistose series and a granitoid series, the latter being in large part intrusive in the former.

  • The likeness of the Archean of one part of the country to that of another is one of its striking features.

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