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- Age_of_the_Earth abstract "The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age is based on evidence from radiometric age dating of meteorite material and is consistent with the ages of the oldest-known terrestrial and lunar samples. Following the scientific revolution and the development of radiometric age dating, measurements of lead in uranium-rich minerals showed that some were in excess of a billion years old.The oldest such minerals analyzed to date – small crystals of zircon from the Jack Hills of Western Australia – are at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to those of other stars, it appears that the solar system cannot be much older than those rocks. Calcium-aluminium-rich inclusions – the oldest known solid constituents within meteorites that 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 Earth.It is hypothesised that the accretion of Earth began soon after the formation of the Ca-Al-rich inclusions and the meteorites. Because the exact amount of time this accretion process took is not yet known, and the predictions from different accretion models range from a few millions up to about 100 million years, the exact age of Earth is difficult to determine. It is also difficult to determine the exact age of the oldest rocks on Earth, exposed at the surface, as they are aggregates of minerals of possibly different ages.".
- Age_of_the_Earth thumbnail The_Earth_seen_from_Apollo_17.jpg?width=300.
- Age_of_the_Earth wikiPageExternalLink age.html.
- Age_of_the_Earth wikiPageExternalLink faq-age-of-earth.html.
- Age_of_the_Earth wikiPageExternalLink www.vectorsite.net.
- Age_of_the_Earth wikiPageExternalLink nasa1.html.
- Age_of_the_Earth wikiPageID "49256".
- Age_of_the_Earth wikiPageRevisionID "606342747".
- Age_of_the_Earth hasPhotoCollection Age_of_the_Earth.
- Age_of_the_Earth subject Category:Geochronology.
- Age_of_the_Earth subject Category:Geology_theories.
- Age_of_the_Earth subject Category:History_of_Earth_science.
- Age_of_the_Earth type Abstraction100002137.
- Age_of_the_Earth type Cognition100023271.
- Age_of_the_Earth type Explanation105793000.
- Age_of_the_Earth type GeologyTheories.
- Age_of_the_Earth type HigherCognitiveProcess105770664.
- Age_of_the_Earth type Process105701363.
- Age_of_the_Earth type PsychologicalFeature100023100.
- Age_of_the_Earth type Theory105989479.
- Age_of_the_Earth type Thinking105770926.
- Age_of_the_Earth comment "The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age is based on evidence from radiometric age dating of meteorite material and is consistent with the ages of the oldest-known terrestrial and lunar samples.".
- Age_of_the_Earth label "Age of the Earth".
- Age_of_the_Earth label "Edad de la Tierra".
- Age_of_the_Earth label "Entstehung der Erde".
- Age_of_the_Earth label "Idade da Terra".
- Age_of_the_Earth label "Ouderdom van de Aarde".
- Age_of_the_Earth label "Âge de la Terre".
- Age_of_the_Earth label "Возраст Земли".
- Age_of_the_Earth label "عمر كوكب الأرض".
- Age_of_the_Earth label "地球の年齢".
- Age_of_the_Earth label "地球的年齡".
- Age_of_the_Earth sameAs Entstehung_der_Erde.
- Age_of_the_Earth sameAs Edad_de_la_Tierra.
- Age_of_the_Earth sameAs Âge_de_la_Terre.
- Age_of_the_Earth sameAs Usia_Bumi.
- Age_of_the_Earth sameAs 地球の年齢.
- Age_of_the_Earth sameAs 지구의_나이.
- Age_of_the_Earth sameAs Ouderdom_van_de_Aarde.
- Age_of_the_Earth sameAs Idade_da_Terra.
- Age_of_the_Earth sameAs Q935310.
- Age_of_the_Earth sameAs Q935310.
- Age_of_the_Earth sameAs Age_of_the_Earth.
- Age_of_the_Earth wasDerivedFrom Age_of_the_Earth?oldid=606342747.
- Age_of_the_Earth depiction The_Earth_seen_from_Apollo_17.jpg.
- Age_of_the_Earth isPrimaryTopicOf Age_of_the_Earth.