[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!

[wildbill]

What I’d like to know is why it’s nice to know if you’ve got 3 billion year old chertz in your backyard?

Are we looking for grafitti like:

“And on the seventh day I created Helen Thomas and found to my amazement I simply could not correct that mistake”