[SunkenCiv]

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[Fred Nerks]

At the 2008 Lunar and Planetary Science conference, Oehler and Gibson reported that chert recovered from Australia, and dated to about 3 billion years, showed carbon and nitrogen distributions similar to what they saw in younger non-controversial microfossils, and thus was probably biogenic.

Nice to know we've got 3 billion year old chert in Oz, but what I would like to know is, how is the age of the chert established?

The Universe is pregnant and electric!