About: Age of Earth   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Modern geologists consider the age of the Earth to be around 4.54 billion years (4.54 years). This age has been determined by radiometric age dating of Wikipedia:Wikipedia:meteorite material and is consistent with the ages of the oldest-known terrestrial and lunar samples.

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rdfs:label
  • Age of Earth
rdfs:comment
  • Modern geologists consider the age of the Earth to be around 4.54 billion years (4.54 years). This age has been determined by radiometric age dating of Wikipedia:Wikipedia:meteorite material and is consistent with the ages of the oldest-known terrestrial and lunar samples.
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Date
  • 1956(xsd:integer)
statistic
  • 1.43271504E17
Method
  • radiometric age dating
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Reference
error
  • 1.262304E15
abstract
  • Modern geologists consider the age of the Earth to be around 4.54 billion years (4.54 years). This age has been determined by radiometric age dating of Wikipedia:Wikipedia:meteorite material and is consistent with the ages of the oldest-known terrestrial and lunar samples. Historically the age of the Earth was determined either by using creation myths in religious texts, or by Wikipedia:Wikipedia:philosophical interpretations of geologic features, most notably the Greek Wikipedia:philosophers Wikipedia:Theophrastus and Wikipedia:Xenophanes. Some Wikipedia:Biblical Wikipedia:young earth creationists believe that the earth was formed as recently as 4004 BC, whereas Wikipedia:Hindu beliefs have the Wikipedia:universe enduring for billions of years before being destroyed and recreated in an endless cycle. After the Wikipedia:scientific revolution and the discovery of radiometric age dating, measurements of lead in uranium-rich Wikipedia:minerals showed that some were in excess of a billion years old. The oldest such minerals analysed to date – small crystals of Wikipedia:zircon from the Wikipedia:Jack Hills of Wikipedia:Western Australia – are at least 4.404 billion years old. Comparing the Wikipedia:mass and Wikipedia:luminosity of the Wikipedia:Sun to the multitudes of other Wikipedia:stars, it appears that the solar system cannot be much older than those rocks. Wikipedia:Ca-Al-rich inclusions (inclusions rich in Wikipedia:calcium and Wikipedia:aluminium) – the oldest known solid constituents within Wikipedia:meteorites which are formed within the solar system – are 4.567 billion years old , giving an age for the solar system and an upper limit for the age of the Earth. It is assumed that the accretion of the Earth began soon after the formation of the Ca-Al-rich inclusions and the meteorites. Because the exact accretion time of the Earth is not yet known, and the predictions from different accretion models vary from several millions up to about 100 million years, the exact age of the Earth is difficult to determine.
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