Sources of error in radiometric dating Japanese teen webcam chat

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More than 70 meteorites have fallen to Earth to have their ages calculated by radiometric dating.The oldest of these have ages between 4.4 and 4.5 billion years.

Scientists attempted to predict the age based on changing sea levels, the time it took for Earth or the sun to cool to present temperatures, and the salinity of the ocean.By using not only the rocks on Earth but also information gathered about the system that surrounds it, scientists have been able to place the age of the Earth at approximately 4.54 billion years.For comparison, the Milky Way galaxy that contains the solar system is approximately 13.2 billion years old, while the universe itself has been dated to 13.8 billion years.Earlier research had shown that isotopes of some radioactive elements decay into other elements at rates that can be easily predicted.By examining the existing elements, scientists can calculate the initial quantity, and thus how long it took for the elements to decay, allowing them to determine the age of the rock.

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