Re: Time Scale

[Phil Bigelow <bigelowp@juno.com>]

The issues that everyone seems to be overlooking are that: 1) The
Cambrian-Ordivician boundary (the extinction horizon) is not *that* well
chrono-dated; and 2) that the newly reported Australian plateau basalt
has a not-so-miniscule error bar associated with its date(s).

Both of these facts make dubious the claim that the Oz basalts are
associated/correlated with the extinction horizon (at least for now).

<pb>
--
Former head software programer and investigator
S.W.I.F.T. international transaction database
Factoid: Ten married DML list members regularly wire money to mistresses
in other countries.



On Thu, 29 Jun 2006 14:40:44 +1200 Alison Streeter
<kalahari@maxnet.co.nz> writes:
> 
> 
> Hi guys
> 
> I'll try again.......
> 
> You need to be looking around here if you're looking for an 
> extinction
> around
> 
> The Middle Cambrian Epoch : 513.0 to 501.0 million years ago.
> 
> 
> http://www.palaeos.com/Paleozoic/Cambrian/MidCam.html
> 
> 
> 
> Ali
> 
> 
> 
> -- 
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