Ancient magma reveals signs of life in zircons from ancient Earth

Zircon crystals, like a time capsule, can preserve traces of life hundreds of millions of years old in the form of biogenic carbon. Using new methods, geoscientists at Heidelberg University have succeeded in tracing very old and rare examples of the mineral zircon that host graphite inclusions in which light carbon is identifiable as a remnant of earlier life.


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Source: Phys.org