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Radiometric dating earth science

The story of this great change in the conception of the history of Earth is not a simple one.The chronicle of this great change can be broken into five periods; ran from AD 1600-1700.In this period a number of comprehensive cosmogonies were proposed.These were long on armchair speculation and short on substantive supporting evidence.In the 1700's belief in a 6000 year old Earth crumbled.Attempts to calculate the age of the Earth from physical considerations yielded estimates that ranged from 75,000 years (Buffon, 1774) to several billion years (de Maillet, Buffon).

This did not matter; the theological perspective did not require physical rationalization.

Hutton and Lyell, who held that the history of Earth was dominated by slow relatively uniform changes in an Earth with a static over all history.

During the early part of this period there was a considerable amount of activity by runs from AD 1850 to the present.

These cosmogonies were part of the new emphasis of science in seeking rational explanations of the features of the world. This period was marked by a great deal of field geology rather than grand cosmogonies.

It became clear that there had been significant changes in the Earth's topography over time and that these changes could neither be accounted for by natural processes operating during the brief nor by the postulated Noachian flood.

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  1. Earth sciences - Radiometric dating In 1905, shortly after the discovery of radioactivity, the American chemist Bertram Boltwood suggested that lead is one of the disintegration products of uranium, in which case the older a uranium-bearing mineral the greater should be its proportional part of lead. Analyzing specimens whose relative geologic.

  2. Tim Thompson has collected a large set of links to web pages that discuss radiometric dating techniques and the age of the earth controversy. his document discusses the way radiometric dating and stratigraphic principles are used to establish the conventional geological time scale. It is not about

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