Dating earth radioactivity

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There have been many speculations about our planet earth and its origins and composition.The age of the earth has been a question that has only recently been estimated as accurately as possible.How do they know the age of shells and other particles found in the earths crust?The secret mysteries of the earth were unlocked by the discovery of fossils, radioactive material dating of rocks and the discovery that the earth does move.

This startling discovery led to the discovery of radioactivity.A child mummy is found high in the Andes and the archaeologist says the child lived more than 2,000 years ago.How do scientists know how old an object or human remains are?His estimate came into question after the discovery of naturally occurring radioactivity by the French physicist Henri Becquerel in 1896 and the subsequent recognition by his colleagues, Marie and Pierre Curie, that compounds of radium (which occur in uranium minerals)...Another role of isotopic geochemistry that is of great importance in geology is radiometric age dating. Beginning with studies in the 1950s, a much better chronology and record of Pleistocene climatic events have evolved through analyses of deep-sea sediments, particularly from the oxygen isotope record of the shells of microorganisms that lived in the oceans.

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