Age of Earth « 13point7

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The age of the Earth is…

February 4th, 2009
Posted in Age of Earth

Currently our estimates of the age of the Earth come from radiometric dating, specifically uranium-lead isotope dating. From the Jack Hills in Western Australia come minerals which have been found to be at least 4.4 billion years old (giving us a lower limit). Analyzing meteorites via the same processes we find that they have ages [ READ MORE ]

Radiometric dating and why we can trust it.

January 21st, 2009
Posted in Age of Earth

First, and introduction is in order. For those of you that may not know what radiometric dating is, in a very general sense, it’s a means of figuring out the age of various things, i.e. rocks, some artifacts from architectural sites, petrified wood, etc. By analyzing the composition of these things, scientists can figure out [ READ MORE ]

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