The oldest gem of the earth is 4.4 billion years old

An international research team reported in a new issue of the British journal Nature and Geoscience that they used a new dating technique to measure the age-controversial Australian zircon crystals, confirming that it was indeed formed 44 years ago. The earliest days of the Earth 100 million years ago.

This gem was discovered in the rock of a sheep farm in western Australia in 2001. It is only twice the diameter of human hair and is small and positive. But it is important for studying the process of the formation of the earth and the age of its emergence. Previously, the research team used the uranium lead isotope dating method to determine that it was formed about 4.4 billion years ago. The Earth itself was formed about 4.5 billion years ago, so this zircon sample is the oldest substance on earth today.

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